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# Recovery Monkey

Musings on storage, tuning, backups and more - delivered with a no-nonsense approach. By Dimitris Krekoukias

## Sitemaps

- [XML Sitemap](https://recoverymonkey.org/sitemap.xml): Contains all public & indexable URLs for this website.

## Posts

- [20x Faster Time to First Token: The HPE Alletra X10000 Edge for AI](https://recoverymonkey.org/2026/04/22/20x-faster-time-to-first-token-the-hpe-alletra-x10000-edge-for-ai/) - New results show ~20× faster TTFT and token generation by offloading LLM KV cache to HPE Alletra X10000 with S3 over RDMA, boosting efficiency and lowering cost
- [Ransomware Detection in the HPE Alletra B10000 -  Successfully Recover](https://recoverymonkey.org/2025/08/07/ransomware-detection-in-the-hpe-alletra-b10000-successfully-recover/) - The HPE Alletra B10000 has an advanced ransomware detection engine that can detect even ransomware that encrypts data in a way that doesn't look encrypted.
- [Ransomware Detection Failure - Where does Technology Fail](https://recoverymonkey.org/2025/07/31/ransomware-detection-failure-where-does-technology-fail/) - Discover how modern ransomware evades detection by subtly encrypting data and using clever techniques that fool traditional security tools.
- [HPE Ransomware Detection and Recovery in Zerto 10: Sophistication that Works](https://recoverymonkey.org/2023/07/25/hpe-ransomware-detection-and-recovery-in-zerto-10-sophistication-that-works/) - HPE has developed novel Ransomware Detection Technology that can detect modern ransomware and recover rapidly, and with an extremely tight RPO.
- [HPE Alletra 6000 - Nimble Evolved](https://recoverymonkey.org/2021/05/06/hpe-alletra-6000-nimble-evolved/) - HPE Alletra 6000 is the evolution of HPE Nimble Storage in a much faster package, managed and automated by the HPE Data Services Cloud Console
- [HPE Alletra 9000 - Primera Evolved](https://recoverymonkey.org/2021/05/13/hpe-alletra-9000-primera-evolved/) - The HPE Alletra 9000 is the evolution of Primera and offers a speedy, modern package capable of tackling mission-critical workloads.
- [HPE X10000 Deep Dive - Differentiation For Unstructured Data](https://recoverymonkey.org/2024/12/17/hpe-x10000-deep-dive-differentiation-for-unstructured-data/) - An architectural deep dive on the HPE Alletra Storage MP X10000 platform, explaining the differentiation for unstructured workloads and balanced performance
- [How to Successfully Navigate Storage Vendor Capacity Guarantees](https://recoverymonkey.org/2024/10/28/how-to-successfully-navigate-storage-vendor-capacity-guarantees/) - Learn how to navigate storage capacity guarantees. How non-reducible data affects the overall savings ratio. And how to ensure you get a safe sizing.
- [The Architectural Benefits of HPE Alletra MP - Plus R4 Coolness](https://recoverymonkey.org/2024/05/22/the-architectural-benefits-of-hpe-alletra-mp-plus-r4-coolness/) - An explanation of how the HPE Alletra MP Block architecture is differentiated versus the competition and allows things nobody else can, like fractional node scaling. Plus R4 update info
- [Media is Not Created Equal and NVMe is Just a Protocol](https://recoverymonkey.org/2018/11/25/media-is-not-created-equal-and-nvme-is-just-a-protocol/) - In this era of over-marketing and misinformation, it can be refreshing to clarify things for customers. Allow me to be refreshing regarding NVMe :) NVMe is simply a protocol. Just like SCSI is a protocol. NVMe is most assuredly not a media type. Yet, storage vendors keep talking about "NVMe drives" and customers often think
- [HPE GreenLake for File Storage](https://recoverymonkey.org/2023/04/13/hpe-greenlake-for-file-storage/) - HPE GreenLake for File Storage is HPE's new FIle offering, using the new Alletra Storage MP hardware, a custom version of the VAST Data OS, and HPE unified management, support, finance and logistics.
- [The New HPE GreenLake for Block Storage – Powered by Alletra Storage MP.](https://recoverymonkey.org/2023/04/06/the-new-hpe-greenlake-for-block-storage-powered-by-alletra-storage-mp/) - HPE GreenLake for Block Storage – Powered by Alletra Storage MP, is the new block protocol storage system from HPE, that's based on the new MP standardized hardware.
- [The New HPE Alletra Storage MP – The Era of Standardization](https://recoverymonkey.org/2023/04/06/hpe-alletra-storage-mp-the-era-of-standardization/) - HPE has created the industry first standardized hardware offering that can accommodate all storage architectures at all scale levels.
- [Beware of Cloud Sizing Tools and avoid Reliability Angst](https://recoverymonkey.org/2022/07/21/beware-of-cloud-sizing-tools-and-avoid-reliability-angst/) - Some time ago I wrote about the dangers of taking certain things for granted with new technologies. This time I wanted to use a more specific enterprise application example to show that customers need to be extra careful when comparing solutions, especially for mission-critical apps. Sometimes being too high-level means missing the unspeakable horrors lurking
- [HPE Data Services Cloud Console - Solving Complex Operational Problems](https://recoverymonkey.org/2021/05/06/hpe-data-services-cloud-console-delivers-unified-dataops/) - HPE Data Services Cloud Console - automates data services and orchestrates infrastructure workflows for operational agility
- [Modern RAID Must Protect Against Multiple Temporally Correlated Errors](https://recoverymonkey.org/2020/09/25/modern-raid-must-protect-against-multiple-temporally-correlated-errors/) - Explains why single parity RAID (i.e. RAID5) is risky in today\'s storage systems and with today\'s media. Customers need to be protected against wild claims.
- [An explanation of IOPS and latency](https://recoverymonkey.org/2012/07/26/an-explanation-of-iops-and-latency/)
- [When Terrified Vendors Attack: The Dell PowerStore Edition](https://recoverymonkey.org/2020/08/24/when-terrified-vendors-attack-the-dell-powerstore-edition/) - Dell is at it again. This time, they paid Principled Technologies to do some tests in order to produce a ridiculous report trying to compare the high-end HPE Primera to the midrange Dell EMC PowerStore. I’ll expose some of the more egregious errors in their methodology and overall thinking, but first I want to direct
- [Why it is Incorrect to use Average Block Size for Storage Performance Benchmarking](https://recoverymonkey.org/2017/11/03/why-it-is-incorrect-to-use-average-block-size-for-storage-performance-benchmarking/) - Just a quick post to address something many people either get wrong or just live with due to convenience. In summary: Please, let’s stop using average I/O sizes to characterize storage system performance. It’s wrong and doesn’t describe how the real world works. Using an average number is as bad as using small block 100%
- [The Harsh Realities of PCIe Lane Shortage in Storage Systems](https://recoverymonkey.org/2020/08/20/the-harsh-realities-of-pcie-lane-shortage-in-storage-systems/) - There are a lot of myths and misinformation, plus more than a modicum of misunderstanding, regarding how storage systems can use available bandwidth, especially with certain newer kinds of media. I wanted to explain some of the harsh facts of storage system design in the real world, and why one shouldn’t just add up drive
- [HCI Failure Modes and Maintenance](https://recoverymonkey.org/2020/03/13/hci-failure-modes-and-maintenance/) - I got the idea for this blog after speaking with multiple customers that were contemplating switching to certain kinds of grid computing/storage (like HCI) without fully understanding the ramifications of doing so. You see, they were (rightly so) enamored by concepts such as automation, ease of consumption and scaling. But they forgot to ask some
- [Trying to Avoid Lock-In Mostly Leads to Just Different Lock-In - Worry About Business Outcomes Instead](https://recoverymonkey.org/2019/06/03/trying-to-avoid-lock-in-mostly-leads-to-just-different-lock-in-worry-about-business-outcomes-instead/) - You will always be locked into something. The key is to decide what that something will be in order to achieve the best long-term business outcomes.
- [InfoSight: How Nimble Customers Benefit from AI and Big Data Predictive Analytics](https://recoverymonkey.org/2017/03/14/how-nimble-customers-benefit-from-big-data-predictive-analytics/) - In past articles I have covered topics about how Nimble Storage lowers customer risk with technologies internal to the array such as: Fully automated headroom management Hands-free, heuristics-based Auto QoS The most paranoid data integrity Now, it's time to write a more in-depth article about the immense customer benefits of InfoSight, Nimble’s Predictive Analytics platform.
- [The Loss of Important Knowledge and Acumen Through Perceived Commoditization](https://recoverymonkey.org/2019/03/29/the-loss-of-important-knowledge-and-acumen-through-perceived-commoditization/) - Ubiquity and commoditization have resulted in a generation of customers that are unaware of fundamental architectural concepts - which can seriously backfire.
- [Uncompromising Resiliency](https://recoverymonkey.org/2016/12/01/uncompromising-resiliency/) - The cardinal rule for enterprise storage systems is to never compromise when it comes to data integrity and resiliency. Everything else, while important, is secondary. Many storage consumers are not aware of what data integrity mechanisms are available or which ones are necessary to meet their protection expectations and requirements. It doesn’t help that a lot of the
- [HPE Memory-Driven Architectures Extend to 3PAR and Nimble Storage](https://recoverymonkey.org/2018/11/30/hpe-memory-driven-architectures-extend-to-3par-and-nimble-storage/) - HPE has been innovating in the Memory-Driven Compute space for a while now (for example, HPE Labs’ The Machine project and Gen-Z ). The driver behind this has been to transform application performance, not by increments but by leaps and bounds. Think orders of magnitude in reduction of execution time. For instance, at an organization
- [Proper Testing vs Real World Testing](https://recoverymonkey.org/2015/10/01/proper-testing-vs-real-world-testing/) - The idea for this article came from seeing various people attempt product testing. Though I thought about storage when writing this, the ideas apply to most industries. Three different kinds of testing There are really three different kinds of testing. The first is the incomplete, improper, useless in almost any situation testing. Typically done by
- [The Importance of the Effective Capacity Ratio in Modern Storage Systems](https://recoverymonkey.org/2016/05/19/the-importance-of-the-effective-capacity-ratio-in-modern-storage-systems/) - In modern storage devices (especially All Flash Arrays), extensive data reduction techniques are commonplace and expected by customers. This has, unavoidably, led to various marketing schemes that aim to make certain systems seem more appealing than the rest. Or at least not less appealing... I will attempt to explain what customers should be looking for
- [Are Snapshots backups? And what do you need to protect against?](https://recoverymonkey.org/2018/07/24/are-snapshots-backups-and-what-do-you-need-to-protect-against/) - I got the idea for this post from a Twitter thread. I thought such discussions were dead but clearly they’re not, and decided to shed some light on this, having dealt with backup at insane scale in a previous life. It doesn’t matter what a feature is called - can you use it to recover?
- [Beware of benchmarking storage that does inline compression](https://recoverymonkey.org/2013/02/25/beware-of-benchmarking-storage-that-does-inline-compression/) - In this post I will examine the effects of benchmarking highly compressible data and why that's potentially a bad idea. Compression is not a new storage feature. Of the large storage vendors, at a minimum HPE, NetApp, EMC and IBM can do it (depending on the array).
- [New HPE Nimble Systems are Ready for SCM and NVMe](https://recoverymonkey.org/2018/05/23/new-hpe-nimble-systems-are-ready-for-scm-and-nvme/) - Recently, HPE Nimble released new systems (the 20/40/60/80 line, replacing the 1000/3000/5000/7000/9000 ones). I don’t cover press releases - you can find this elsewhere. I’d rather talk about the cool stuff. Hardware One nice aspect of the new hardware is that for most models, the performance is radically increased vs the old line. For the
- [When Terrified Vendors Attack: The Dell Edition](https://recoverymonkey.org/2018/03/16/when-terrified-vendors-attack-the-dell-edition/) - It recently came to my attention that Dell is now advertising some kind of benchmark that shows one of their platforms can be faster than Nimble in some very specific test of their own concoction. While I don’t doubt that’s possible (indeed, we could do it the other way around), it may be worthwhile investigating
- [How Nimble Storage Systems do Block Folding](https://recoverymonkey.org/2018/02/24/how-nimble-storage-systems-do-block-folding/) - I got the idea for this post after seeing certain vendors claim they were the first and only with certain data reduction technologies (I’m not talking about dedupe and compression). I thought - how come Nimble never made a big deal about this? After all, what those vendors were claiming didn’t seem to be very
- [So who am I?](https://recoverymonkey.org/2007/02/18/first-post/) - Hello everyone, My name is Dimitris Krekoukias. This blog used to be on another server, I moved it here - hopefully this hosting facility will be more stable. I resemble a silverback gorila more than a monkey (man-pelt and all), and could probably wrestle one (and have a fair chance of winning). I have extensive
- [On windows filesystem tuning and funky cache mechanisms](https://recoverymonkey.org/2007/02/19/on-windows-filesystem-tuning-and-funky-cache-mechanisms/) - Edited: I just realized I must have used different postmark settings for vista and XP. Do NOT use the following numbers to compare Vista to XP performance. I won't go into a diatribe on how to tune Windows - there are excellent guides on Microsoft's and IBM's sites, among others. But I wanted to share
- [Do you need a VTL or not?](https://recoverymonkey.org/2007/02/19/do-you-need-a-vtl-or-not/) - I first posted this as a comment on http://www.gotitsolutions.org but this is its rightful place. Having deployed what was, at the time, the largest VTL in the world, and subsequently numerous other VTL and ATA Solutions, I think I can offer a somewhat different perspective: It depends on the number of data movers you have
- [On deduplication and Data Domain appliances](https://recoverymonkey.org/2007/02/19/on-deduplication-and-data-domain-appliances/) - One subject I keep hearing about is deduplication. The idea being that you save a ton of space since a lot of your computers have identical data. One way to do it is with an appliance-based solution such as Data Domain. Effectively, they put a little server and a cheap-but-not-cheerful, non-expandable 6TB RAID together, then
- [Some clarification on the caching](https://recoverymonkey.org/2007/02/19/some-clarification-on-the-caching/) - Re the previous post: If you want to use supercache or uptempo the idea is that you take AWAY from windows/SQL/exchange cache and add to the fancy cache. So, even on windows server, in "file and print sharing for microsoft windows" (in the properties for your network card, under file and printer sharing for Microsoft
- [It's all about data classification and searching](https://recoverymonkey.org/2007/02/19/it’s-all-about-data-classification-and-searching/) - I don't know if this has been discussed elsewhere but I felt like I had an epiphany so there... They way I see it, in a decade or two the most important technology regarding data will be data classification and search technologies. Consider this: At the moment, all the rage is archiving and storage tiers.
- [On traveling lately](https://recoverymonkey.org/2007/04/30/on-traveling-lately/) - Been a while since I updated this blog. Too busy running around, evangelizing cool technologies, eating rich food, not exercising and spending WAY too much time in airports delayed due to bad weather. Someone needs to either: Change the rules so that planes fly even under more adverse conditions (which is, technically, possible) Improve the
- [Cisco WAAS benchmarks, and WAN optimizers in general](https://recoverymonkey.org/2007/05/02/cisco-waas-benchmarks-and-wan-optimizers-in-general/) - Lately I've been dealing with WAN accelerators a lot, with the emphasis on Cisco's WAAS (some other, smaller players are Riverbed, Juniper, Bluecoat, Tacit/Packeteer and Silverpeak). The premise is simple and compelling: Instead of having all those servers at your edge locations, move your users' data to the core and make accessing the data feel
- [Another windows tuning I forgot to mention](https://recoverymonkey.org/2007/05/04/another-windows-tuning-i-forgot-to-mention/) - I use my laptop so much that I sometimes forget about some server-type tunings. I resuscitated my hot-rod AMD box - it's a grossly overclocked monster but only has 1GB RAM (since it's hard to find that kind of fast RAM in bigger sizes, and using 4 sticks prohibits me from overclocking it so much).
- [I wonder when dedup will make it to the arrays](https://recoverymonkey.org/2007/05/08/i-wonder-when-dedup-will-make-it-to-the-arrays/) - Anyone feel that deduplication is not finding its final resting place in backups and WAN accelerators? It's only a matter of time before the algorithms are run as a matter of choice on the array processors. Of course, that means fewer disk sales, but also bigger/faster/more expensive processors. Replication will also become more efficient -
- [Just ate at Charley's steakhouse in Orlando](https://recoverymonkey.org/2007/05/21/just-ate-at-charleys-steakhouse-in-orlando/) - As has been my idiom lately, I will comment on food. Went to Charley's steakhouse while attending EMC World. They made a huge deal of showing off their steaks - which looked good. Wet-aged, 6 weeks for the bone-in ones, 4 weeks for the rest. Aged in-house. I prefer dry-aged but it's hard to find
- [Netbackup best practices for ridiculously busy environments (but not exclusively).](https://recoverymonkey.org/2007/05/22/netbackup-best-practices-for-ridiculously-busy-environments-but-not-exclusively/) - While waiting for another EMC World session to start (this one is at "Guru" level, let's see) I thought I might share some of my experience regarding running Netbackup on very large setups - nothing like learning through pain. Don't get me wrong - NBU has its marketshare for a reason. However, I want to
- [Should EMC move to more multi-functional devices?](https://recoverymonkey.org/2007/05/23/should-emc-move-to-more-multi-functional-devices/) - Here's the deal: EMC has a lot of cool stuff. Lots of it came through acquisitions. Lots of it runs on the x86 platform, believe it or not. At the moment one needs to buy multiple boxes from EMC to do NAS, SAN, archiving, etc. Imagine if you got instead generic boxes (with their power
- [Ate at Del Frisco's steakhouse in Orlando](https://recoverymonkey.org/2007/05/23/ate-at-del-friscos-steakhouse-in-orlando/) - Superb. Not much fanfare, steaks wet-aged 21 days. Got the strip. So much better than Charley's it wasn't even funny. Great flavor, tender, perfectly cooked. 8/10. (Charley's claim double the aging time but their stuff just wasn't that good). Sides were maybe too rich (the spinach could clog a Yak's arteries). Bisque too thick and
- [Storage Virtualization - is there a point?](https://recoverymonkey.org/2007/05/23/storage-virtualization-is-there-a-point/) - This has been bothering me for a while, and I think I'm not alone. Hitachi has been making great progress with their virtualization gear, as has IBM, Falconstor before them, etc. They claim you'll be freed from the vendors' shackles, achieve greater utilization of your arrays, simplify administration, cure cancer etc. Well, here's what I
- [Data Domain Update](https://recoverymonkey.org/2007/05/23/data-domain-update/) - I'm not known for retractions and I'm not posting one. I did however check out the new DD boxes and the really big ones are far more capable than the old ones. So, the techies (hats off for enduring a half hour with me) explained to me a few things: The smallest block is 4K
- [Ate at Trotter's Tavern in Bowling Green, OH](https://recoverymonkey.org/2007/06/02/ate-at-trotters-tavern-in-bowling-green-oh/) - I had some great customer meetings in OH this week. One meeting took me to Bowling Green, cute town. The locals like to eat steak at Trotter's Tavern. They only serve fist-sized and -shaped chunks of sirloin in some weird sauce that has at least some Worcestershire in it but is more tangy. No other
- [IBRIX at EMC World](https://recoverymonkey.org/2007/06/02/ibrix-at-emc-world/) - I've known about IBRIX for a while, but it was refreshing to talk to a decent techie that knew the product. They have improved it a lot over the past year. For the uninitiated, IBRIX can be either A network-based filesystem using the IBRIX client and protocol Also accessible using NFS or CIFS SAN-based parallel
- [Ate at Flames in Manhattan](https://recoverymonkey.org/2007/06/07/ate-at-flames-in-manhattan/) - I was helping a client in the Wall Street District today with some rather obscure CIFS performance issues (Opportunistic Locks anyone? Berzerk BDCs causing issues? Multi-user Access DBs over WAN?) Had to stay overnight (unplanned) so after putting in some solid hours I decided to get some steak, and NYC is the place to get
- [ZFS in OSX](https://recoverymonkey.org/2007/06/07/zfs-in-osx/) - Not amazing news but an official announcement nonetheless: Saw this (www.macnn.com/articles/07/06/06/zfs.in.leopard/) and I couldn't resist posting. This means a few things: Sun figured out how to make ZFS bootable (at least on OSX) Someone figured out how to deal with ZFS and resource forks (I can't believe they are willing to break compatibility with so
- [This has been one of the worst trips ever - because of one of the silliest DR exercises ever](https://recoverymonkey.org/2007/06/08/this-has-been-one-of-the-worst-trips-ever-because-of-one-of-the-silliest-dr-exercises-ever/) - Well, aside from visiting Flames and helping fix a severe customer problem. Those were rewarding. I still haven't pooped that steak, BTW. I was supposed to only stay for 1 day in Manhattan, fix the issue, ba da bing. I ended up staying an extra day - had no extra clothes and no time to
- [Ate at Murphy's Style Grill, in Red Bank, NJ](https://recoverymonkey.org/2007/06/13/ate-at-murphys-style-grill-in-red-bank-nj/) - Will be demonstrating Cisco's WAAS tomorrow in NYC, so today we spent some time going through a testing protocol so we can show people different things. After we finished we had dinner at Murphy's in NJ. Strange place. It's not a classy steakhouse or anything - nor does it have aspirations to be one. The
- [Just how much is your antivirus harming your I/O?](https://recoverymonkey.org/2007/07/30/just-how-much-is-your-antivirus-harming-your-io/) - I just got a new corporate laptop, a nice, shiny T60 (OK, it's IBM black and therefore thoroughly incapable of reflecting on any part of the spectrum). I noticed that doing disk-intensive work was much slower than I've been used to. I configured it as a server (see previous posts) and that helped a bit
- [Ate at AJ Maxwell's in Manhattan](https://recoverymonkey.org/2007/08/09/ate-at-aj-maxwells-in-manhattan/) - Once more, dear reader, I place my colon's health at peril for your reading pleasure and culinary edification. I could have gone to Via Brazil for a proper feijoada by walking a few yards from my hotel but, instead, I sacrificed variety on the altar of dedication and had another bone-in ribeye. It is my
- [Processor scheduling and quanta in Windows (and a bit about Unix/Linux)](https://recoverymonkey.org/2007/08/17/processor-scheduling-and-quanta-in-windows-and-a-bit-about-unixlinux/) - One of the more exotic and exciting IT subjects is the one of processor scheduling (if you're not excited, read on, practical stuff to be seen later in the text). Multi-tasking OSes just give the illusion that they're doing things in parallel - in reality, the CPUs rapidly skip from task to task using various
- [WAN acceleration for remote workers](https://recoverymonkey.org/2007/09/20/wan-acceleration-for-remote-workers/) - The deluge of WAN accelerators from Cisco, Riverbed, Juniper, Expand, Packeteer,Bluecoat, Silverpeak etc. etc. is proving good for datacenters. Not sure how many vendors will remain viable in a year or two, but the selection at the moment is decent. However, most of the vendors don't address remote desktop acceleration, say for people using 3G
- [Ate at The Old Homestead in NYC](https://recoverymonkey.org/2007/09/26/ate-at-the-old-homestead-in-nyc/) - I've been hopped up on uppers all day (relax, just a huge amount of chocolate-covered high-test espresso beans, though the amount of caffeine was surely enough to get me disqualified from competing in any sport - every time I pee it smells like freshly-brewed coffee). Needing something to relax me, and since my bowel movements
- [Ate at the Staghorn steakhouse in NYC](https://recoverymonkey.org/2007/10/26/ate-at-the-staghorn-steakhouse-in-nyc/) - At the insistence of my colleagues (that seem to enjoy the steak posts more than the high-falutin' technology ones) I decided to visit another NYC steakhouse. It was raining, I didn't feel like going further so I went to a place near the office at 2 Penn Plaza (Madison Sq. Garden). It's a newer place
- [My opinion on the Sun/NetApp altercation: Both companies should be grateful instead of resorting to lawsuits](https://recoverymonkey.org/2007/11/15/my-opinion-on-the-sunnetapp-altercation-both-companies-should-be-grateful-instead-of-resorting-to-lawsuits/) - Since opinions are like you-know-what, and since I'm decidedly anatomically complete in that respect (some, indeed, claim all of me is composed of implied anatomical part, so maybe that's why I'm so opinionated), I thought I'd throw my $0.2 in the pot and not stay silent. The whole issue irks me quite a bit, actually.
- [(Very) Preliminary Windows Server 2008 impressions and Vista Multimedia Performance under battery power](https://recoverymonkey.org/2007/12/07/very-preliminary-windows-server-2008-impressions-and-vista-multimedia-performance-under-battery-power/) - Out of curiosity, I very briefly tried the new Server 2008 Release Candidate (freely available from Microsoft). I've been using Vista 64-bit since I need to see all the memory in my machine and, while it works mostly OK, there are some low-level scheduling issues with it - for instance, sound is really choppy on
- [We need more wizards!](https://recoverymonkey.org/2007/12/09/we-need-more-wizards/) - No, I don't mean Gandalf, I mean the software kind. And before I'm accused of being Gates' live-in cabana boy (it's all baseless rumors), let me clarify. It's a known fact that most OSes need tuning (sometimes significant) to perform well with heavy-duty applications (I'm not talking about your home web server, I'm talking about
- [Ate at Delmonico's in NYC](https://recoverymonkey.org/2007/12/20/ate-at-delmonico’s-in-nyc/) - I was helping out a customer with some backup issues in the Wall street area and they happened to be literally across the street from Delmonico's. At the end of a particularly long day I thought I'd reward myself with a nice steak, and the proximity to the steakhouse made it hard to resist. Delmonico's
- [NetApp posts SPC-1 results](https://recoverymonkey.org/2008/02/04/netapp-posts-spc-1-results/) - NetApp posted some SPC results showing their 3040 box performing pretty well in SPC-1 relative to an EMC box. There have been rumors that when running multiple features in a NetApp box then performance suffers. Which kinda negates the whole value prop of NetApp (since that's when people typically choose NetApp - they want one
- [Windows Server 2008 RTM 64-bit performance versus Vista SP1 64-bit, and using 2008 as a workstation](https://recoverymonkey.org/2008/03/25/windows-server-2008-rtm-64-bit-performance-versus-vista-sp1-64-bit-and-using-2008-as-a-workstation/) - I've been using Vista x64 for a while now, just so I can make use of all the memory on my machine (an über-thinkpad), and because I like shiny new things and 64-bitness and don't want to be one-upped by smug Mac users with their feline-named OSes, mock turtlenecks and their newfound 64-bit capabilities. Of
- [Lowest-impact antivirus tool I've ever tried](https://recoverymonkey.org/2008/05/13/lowest-impact-antivirus-tool-i’ve-ever-tried/) - I've been trying out ESET's NOD32 on my 64-bit 2008 Server box. Before that I'd tried Avast! - which has great detection but noticeably slows down my computer, even when it's loading pre-cached and pre-checked content (easy test: load Firefox with and without Avast! several times. It's ALWAYS much slower to load with antivirus on
- [Finally, some postmark results for OSX! And how does it do versus Windows?](https://recoverymonkey.org/2008/05/28/finally-some-postmark-results-for-osx-and-how-does-it-do-versus-windows/) - My colleague Ian (last name withheld to save him from the Mac zealots) compiled the postmark code on his beloved Mac and ran it with the same settings I use in general (see older blog posts, just search for postmark). I've been curious for the longest time to see how OSX performs in this test,
- [Virtualized Windows I/O performance on Xen with and without the optimized PV drivers, and versus the Linux host](https://recoverymonkey.org/2008/06/10/virtualized-windows-io-performance-on-xen-with-and-without-the-optimized-pv-drivers-and-versus-the-linux-host/) - One of my readers, Randall Ehren, was kind enough to provide benchmarks for Xen-virtualized Windows 2003 and XP with and without the optimized PV driver, and also compare to the underlying host. Most of the text below is copied verbatim from his correspondence with me, I just added some clarification in places. physical machine description:
- [What is the value of your data? Do you have the money to implement proper DR that works? How are you deciding what kind of storage and DR strategy you'll follow? And how does Continuous Data Protection like EMC's RecoverPoint help?](https://recoverymonkey.org/2008/08/20/what-is-the-value-of-your-data-do-you-have-the-money-to-implement-proper-dr-that-works-how-are-you-deciding-what-kind-of-storage-and-dr-strategy-you’ll-follow-and-how-does-continuous-data-p/) - Maybe the longest title for a post ever. And one of my longest, most rambling posts ever, it seems. Recently we did a demo for a customer that I thought opened an interesting can of worms. Let's set the stage - and, BTW, let it be known that I lost my train of thought multiple
- [A word of caution when setting up a deduplicating VTL](https://recoverymonkey.org/2008/10/16/a-word-of-caution-when-setting-up-a-deduplicating-vtl/) - Based on some recent experiences I wanted to make people aware of some caveats with setting up a VTL with deduplication. This is specifically regarding the EMC DL3D (AKA Quantum DXi) but applies to all of them. This will be a mercifully short and to the point post. Here's the rub: Create small virtual tapes
- [Postmark on late 2008 Macbook Pro](https://recoverymonkey.org/2008/11/02/postmark-on-late-2008-macbook-pro/) - So I'm now the proud owner of a tricked-out 2.8GHz MBP. Naturally I've been tinkering with it already (only had it for 2 days). I've disabled swapfile encryption, for instance, and I think it makes it have teh snappy. I compiled postmark for it with -O3 -m64 and ran the usual. Before doing so though
- [Cinebench benchmarks - performance comparison between Vista 64 and Mac OS X](https://recoverymonkey.org/2008/12/15/cinebench-benchmarks-performance-comparison-between-vista-64-and-mac-os-x/) - Been a while since I posted anything - there's a TON of material but some of us actually do more than blog, it's quarter/year end, and I barely have time to go to the bathroom... But this was an easy one so I thought I'd post it real quick. Using Scribefire, a blogging plug-in for
- [My frustration with the quality and education of CIOs, CTOs, IT Directors, what have you... what caliber IT manager should you choose?](https://recoverymonkey.org/2008/12/22/my-frustration-with-the-quality-and-education-of-cios-ctos-it-directors-what-have-you-what-caliber-it-manager-should-you-choose/) - As a matter of course, I deal with all kinds of IT manager types during the course of a campaign. Sometimes said managers are well-versed in technology. Other times they have biases, are bigoted, and so on. Which is fine, I'm more opinionated, cranky and obnoxious than most. It agitates me encountering IT management types
- [So, how frequently do you really test DR?](https://recoverymonkey.org/2008/12/27/so-how-frequently-do-you-really-test-dr/) - It's after 4AM, I can't sleep since I'm in pain after a car accident and I've had altogether too much caffeine. I've already watched 3 movies. BTW, "I am Legend" - WTF! Never have I seen a decent book butchered so much! The ideas in the book were so much stronger. Seriously, go get the
- [On current smartphones](https://recoverymonkey.org/2009/01/05/on-current-smartphones/) - The time has come for me to get a new phone (my current one can't keep up with the demands and the speed or lack thereof ends up frustrating me). So I've been looking at the plethora of devices out there - Berries, Windows Mobile, iPhone, etc (disclaimer: I've been a Blackberry user for many
- [So what exactly is IBM trying to do with the XIV?](https://recoverymonkey.org/2009/01/05/so-what-exactly-is-ibm-trying-to-do-with-the-xiv/) - By now most people dealing with storage know that IBM acquired the XIV technology. What IBM is doing now is trying to push the technology to everyone and their dog, for reasons we'll get into... I just hope IBM gets their storage act together since now they're selling products made by 4-5 different vendors, with
- [So, what's the best way to back up VMs?](https://recoverymonkey.org/2009/04/27/so-what’s-the-best-way-to-back-up-vms/) - Backing up VMs seems to be one of the topics nobody can seem to be able to agree on despite a plethora of reading material on the subject - and maybe because of said plethora. I will focus on VMware since it is the leading and prevalent virtualization method in the marketplace today (I'm sure
- [Linux filesystem benchmark extravaganza - including Deadline vs CFQ schedulers and ext4 instability](https://recoverymonkey.org/2009/05/18/linux-filesystem-benchmark-extravaganza-including-deadline-vs-cfq-schedulers-and-ext4-instability/) - I have some spare time these days so I figured I'd finally test as many filesystems on Linux as I could... The new ext4 is an option with modern kernels so I loaded Ubuntu 9.04 and tried postmark and bonnie++ on the same partition using various filesystems and switching between the CFQ and Deadline schedulers.
- [About the Data Domain acquisition – and is EMC really the best place for Data Domain?](https://recoverymonkey.org/2009/06/13/about-the-data-domain-acquisition-and-is-emc-really-the-best-place-for-data-domain/) - Technorati Tags: emc,ddup,ntap,netapp,data domain,dl3d,deduplication,recoverpoint,avamar Much has already been written about this imminent acquisition of Data Domain by either NetApp or EMC and, since opinions are like you-know-what, and I have one, here it is… if I ramble, forgive me. I have too much to say and I’m trying to be PC… I wrote and subsequently
- [New ext4 vs XFS benchmarks using Fedora 11 Leonidas](https://recoverymonkey.org/2009/06/14/new-ext4-vs-xfs-benchmarks-using-fedora-11-leonidas/) - What a difference a kernel rev and/or distribution make. If you recall from a previous post, I was unable to complete postmark testing on Ubuntu 9.04 using ext4, and had to recommend against ext4. Now, with the release of Fedora 11 "Leonidas", a new kernel seems to make a big difference in performance and stability
- [Ease Of Use, Backup and Recovery And Efficiency in Modern Disk Arrays - What Questions Should You Really Be Asking the Vendors?](https://recoverymonkey.org/2009/07/29/ease-of-use-backup-and-recovery-and-efficiency-in-modern-disk-arrays-–-what-questions-should-you-really-be-asking-the-vendors/) - It's interesting how many storage vendors claim their products are easy to use and, indeed, show nice canned demos full of wizards and elves and whatnot that seem to impress most. There are also grandiose claims of magically reliable hardware and other pixie dust. Ultimately, the reality is that: Most modern arrays, as long as
- [Should your backups to disk consume more disk than you use for production? Seriously?](https://recoverymonkey.org/2009/08/15/should-your-backups-to-disk-consume-more-disk-than-you-use-for-production-seriously/) - So, let's talk about this not-so-hypothetical customer... They have: A few sites A lot of data per site Much of the data is DBs and Multimedia No replication currently Can't back up everything currently No proper DR Fairly significant rate of change Not the fastest pipes between sites They asked me to propose a solution
- [Is EMC under-sizing RecoverPoint and Avamar deals to win business?](https://recoverymonkey.org/2009/12/04/is-emc-under-sizing-recoverpoint-and-avamar-deals-to-win-business/) - It's been a while since I wrote anything - unlike some, I actually have a day job and don't use ghostwriters! Well, at least that's my excuse. My admiration for RecoverPoint is well known (see older post, which is referenced internally within EMC as a great pro-RecoverPoint article). It really is a good product and,
- [Should techies or business owners decide on technology (or both)?](https://recoverymonkey.org/2010/01/09/should-techies-or-business-owners-decide-on-technology-or-both/) - It's no secret that, in most companies, the technology folks are primarily the ones deciding on which new technologies to adopt - after all, they are the ones that understand the technology, right? Business owners explain the business problem to the technologists, and the techies take it from there - and ultimately present 2-3 different
- [What if you could dramatically improve your application testing times? What would happen to your productivity and to the company's bottom line?](https://recoverymonkey.org/2010/01/09/what-if-you-could-dramatically-improve-your-application-testing-times-what-would-happen-to-your-productivity-and-to-the-company’s-bottom-line/) - So, let's say the DBA (or insert some other discipline) wants to do some testing for a new product (known to happen occasionally) - and the way he would really like to test is to create 20 test cases, which requires 20 copies of the main database. He would then automate the test and therefore
- [Pillar claiming their RAID5 is more reliable than RAID6? Wizardry or fiction?](https://recoverymonkey.org/2010/01/14/pillar-claiming-their-raid5-is-more-reliable-than-raid6-wizardry-or-fiction/) - Competing against Pillar at an account. One of the things they said: That their RAID5 is superior in reliability to RAID6. I wanted to put this on the public domain and, if true, invite Pillar engineers to comment here and explain how it works for all to see. If untrue, again I invite the Pillar
- [Vendor FUD-slinging: at what point should legal action be taken? And who do you believe as a customer?](https://recoverymonkey.org/2010/02/02/vendor-fud-slinging-–-at-what-point-should-legal-action-be-taken-and-who-do-you-believe-as-a-customer/) - I'm all for a good fight, but in the storage industry it seems that all too many creative liberties are taken when competing. Let's assume, for a moment, that we're talking about the car industry instead. I like cars, and I love car analogies. So we'll use that, and it illustrates the absurdity really well.
- [NetApp disk rebuild impact on performance (or lack thereof)](https://recoverymonkey.org/2010/02/08/netapp-disk-rebuild-impact-on-performance-or-lack-thereof/) - Due to the craziness in the previous blog, I decided to post an actual graph showing a NetApp system I/O latency while under load and a disk rebuild. It was a bakeoff vs another large storage vendor (which NetApp won). The test was done at a large media company with over 70,000 Exchange seats. It
- [More FUD busting: Deduplication - is variable-block better than fixed-block, and should you care?](https://recoverymonkey.org/2010/02/10/more-fud-busting-deduplication-–-is-variable-block-better-than-fixed-block-and-should-you-care/) - Before all the variable-block aficionados go up in arms, I freely admit variable-block deduplication may overall squeeze more dedupe out of your data. I won't go into a laborious explanation of variable vs fixed, but, in a nutshell, fixed-block deduplication means that data is split into equal chunks, each chunk given a signature, compared to
- [So, are there any independent bloggers? Really?](https://recoverymonkey.org/2010/02/18/so-are-there-any-independent-bloggers-really/) - There was some weird backlash against my site and my person recently - see here and here and in the comments here. Chuck Hollis got all uppity about whether I work at NetApp (with, for) or not. I find it interesting that this only came up when I wrote something pro-NetApp. Wasn't even anti-EMC. It
- [Protecting your existing legacy storage investment with virtualization “do’s and don’ts”](https://recoverymonkey.org/2010/02/22/protecting-your-existing-legacy-storage-investment-with-virtualization-–-do’s-and-don’ts/) - It's an undeniable fact that many customers, while they would love to use the highly advanced features of modern disk arrays, have already made a big investment in legacy storage. Sure, it doesn't have all the great features, but it's already there, frequently there's a lot of it, and the maintenance isn't expiring for another
- [EMC's incredible marketing and the FAST fairy tale (and a bit on how to reduce tiers)](https://recoverymonkey.org/2010/03/03/emc’s-incredible-marketing-and-the-fast-fairy-tale-and-a-bit-on-how-to-reduce-tiers/) - I'm in MN prepping to teach a course (my signature anti-FUD extravaganza), and thought I'd get a few things off my chest that I've been meaning to write about for a while. Some Stravinsky to provide the vibes and I'm good to go. It's getting really late BTW and I'm sure this will progressively get
- [More tales from the field: Sizing best practices – does Compellent follow them?](https://recoverymonkey.org/2010/03/09/more-tales-from-the-field-sizing-best-practices-does-compellent-follow-them/) - Another one came in. I'll keep calling the offenders out until the craziness stops. Fellow engineers - remember that, regardless of where we work, our mission should be to help the customer out first and foremost. Then make a sale, if possible/applicable. I implore you to get your priorities straight. If it looks like you're
- [Are you using the features of your existing platforms? And, if not, why not?](https://recoverymonkey.org/2010/03/17/are-you-using-the-features-of-your-existing-platforms-and-if-not-why-not/) - This is going to be another post that was inspired by sheer frustration. It's one thing talking to someone about adopting a totally new platform and meeting with resistance - I get it, it's not what they're used to, it's new stuff, they don't know if it will work etc. etc. However, recently I'm encountering
- [FUD and The Invention of Lying](https://recoverymonkey.org/2010/03/18/fud-and-the-invention-of-lying/) - I watched "The Invention of Lying" movie the other day. Fairly entertaining, and it had an interesting concept: Imagine a society where nobody can lie - the very concept of lying is alien and never even enters anyone's mind. Obviously, tons of jokes can be made using that premise, and the movie is riddled with
- [Filesystem benchmark extravaganza – Win, Linux, NTFS, EXT4, XFS, BFS scheduler impact and more…](https://recoverymonkey.org/2010/03/29/filesystem-benchmark-extravaganza-win-linux-ntfs-ext4-xfs-bfs-scheduler-impact-and-more/) - Technorati Tags: ext4,xfs,ntfs,benchmark,postmark,BFS,CFS,Linux,Ubuntu,PCLOS It's been a while since I checked the status of Linux-land regarding filesystems and CPU and I/O schedulers, so I thought I'd post some results. A bunch of new distributions are coming out with Linux kernel 2.6.32 as standard (Ubuntu 10.04LTS one of them), and one distribution (PC Linux OS) will have
- [What exactly is Unified Storage and who can sell it to you?](https://recoverymonkey.org/2010/04/27/what-exactly-is-unified-storage-and-who-can-sell-it-to-you/) - It's come to my attention that pretty much every storage manufacturer is trying to imitate NetApp's thought leadership and keeps announcing "Unified Storage" products. Everyone can do it now, it seems :) Now, this post is not going to be bashing them or claiming they don't work. This post is about arguing what "Unified Storage"
- [NetApp usable space – beyond the FUD](https://recoverymonkey.org/2010/05/07/netapp-usable-space-beyond-the-fud/) - I come across all kinds of FUD, and some of the most ridiculous claims against NetApp regard usable space. I won't post screenshots from competitive docs since who knows who'll complain, but suffice it to say that one of the usual strategies against NetApp is to claim the system has something like well under 50%
- [Et tu, Brute? EMC offering capacity guarantees? The sky is falling! Will Chuck resign?](https://recoverymonkey.org/2010/05/24/et-tu-brute-emc-offering-capacity-guarantees-the-sky-is-falling-will-chuck-resign/) - It came to my attention that EMC is offering a 20% efficiency guarantee vs the competition (they seem to be focusing on NetApp as usual but that's besides the point in this post). See here. Now, I won't go ahead and attack their guarantee. Good luck with that, more power to you etc etc. They
- [FUD tales from the blogosphere: when vendors attack (and a wee bit on expanding and balancing RAID groups)](https://recoverymonkey.org/2010/08/07/fud-tales-from-the-blogosphere-when-vendors-attack-and-a-wee-bit-on-expanding-and-balancing-raid-groups/) - Haven't blogged in a while, way too busy. Against my better judgment, I thought I'd respond to some comments I've seen on the blogosphere, adding one of my trademark extremely long titles. Part response, part tutorial. People with no time to read it all: Skip to the end and see if you know the answer
- [NetApp benefits for virtualization – benchmarked and proven](https://recoverymonkey.org/2010/08/30/netapp-benefits-for-virtualization-benchmarked-and-proven/) - My colleague Vaughn Stewart explains it in detail here. I didn't feel we gave this the publicity it deserves. In a nutshell: We have numbers (published only after VMware engineering themselves approved the paper as accurate and gave their permission) proving that, compared to traditional arrays, running virtualized workloads on NetApp gear needs less resources
- [A look at EMC’s FASTv2, FAST Cache and FLARE30 - EMC giveth, EMC taketh away](https://recoverymonkey.org/2010/09/20/a-look-at-emcs-fastv2-fast-cache-and-flare30-emc-giveth-emc-taketh-away/) - [Update: some grammar mistakes fixed and a few questions added] Before anyone starts frothing at the mouth, notice that in the categories this post is part of FUD :) Always do your own analysis… I just wanted to give people some food for thought, like I did when FASTv1 came out. I didn’t make this up,
- [Has NetApp sold more flash than any other enterprise disk vendor?](https://recoverymonkey.org/2010/11/09/has-netapp-sold-more-flash-than-any-other-enterprise-disk-vendor/) - NetApp has been selling our custom cache boards with flash chips for a while now. We have sold over 3PB of usable cache this way. The question was raised in public forums such as Twitter - someone mentioned that this figure may be more usable Solid State storage than all other enterprise disk vendors have
- [New NetApp SPC-1 submission - more IOPS per drive than any other vendor, and a bit on write caching](https://recoverymonkey.org/2010/11/09/176/) - The SPC-1(E) benchmark is the standard high-intensity test for block storage, consisting of very stringent rules and a standard test suite. SPC-1 is one of the worst things you can do to a disk array. The benchmark itself does a lot of writes (about 60%), is highly random and is hostile to most caching systems. Which neatly
- [NetApp posts new SPEC SFS NFS results - far faster than V-Max with Celerra VG8](https://recoverymonkey.org/2010/11/12/netapp-posts-new-spec-sfs-nfs-results-far-faster-than-v-max-with-celerra-vg8/) - Following the new NetApp block-based SPC-1 results yesterday, here is some NAS benchmark action. This page contains all the SPEC SFS results. SPEC SFS is the NAS equivalent of SPC-1. SPEC SFS is more cache-friendly than the brutal SPC-1, click here for some more information regarding this industry-standard NAS benchmark. The idea is that thousands
- [Single wire and single OS: yet another way to tell true unified storage from the rest](https://recoverymonkey.org/2010/12/22/single-wire-and-single-os-yet-another-way-to-tell-true-unified-storage-from-the-rest/) - This is going to be a mercifully short entry. I'm saving the big one for another day :) One of the features of NetApp storage is that by using Converged Network Adapters (CNAs) one can use a single wire and transport over that FC, iSCSI, NFS and CIFS, at the same time. You see, since
- [Questions to ask EMC regarding their new VNX systems...](https://recoverymonkey.org/2011/01/13/questions-to-ask-emc-regarding-their-new-vnx-systems/) - It's that time of the year again. The usual websites are busy with news of the upcoming EMC midrange refresh called VNX. And records being broken. (NEWSFLASH: Watching the webcast now, the record they kept saying they would break ended up being some guy jumping over a bunch of EMC arrays with a motorcycle -
- [Updated blog code, plus a bit about NetApp recovery for cloud providers](https://recoverymonkey.org/2011/01/26/updated-blog-code-plus-a-bit-about-godaddy-and-netapp-recovery-for-cloud-providers/) - Sometime last night/this morning a config file in my blog got corrupted. Maybe it got hacked (I was running an ancient WordPress version 2.1) but at any rate the site was down. It's hosted on a large, famous service provider, and they use NetApp gear. I was able to recover my file through NetApp snapshots
- [Stack Wars: The Clone Wars](https://recoverymonkey.org/2011/02/03/stack-wars-the-clone-wars/) - It seems that everyone and their granny is trying to create some sort of stack offering these days. Look at all the brouhaha - HP buying 3Par, Dell buying Compellent, all kinds of partnerships being formed left and right. Stacks are hot. To the uninitiated, a stack is what you can get when a vendor
- [EMC finally joining the SPC - plus some advice](https://recoverymonkey.org/2011/02/15/emc-finally-joining-the-spc-plus-some-advice/) - Just came to my attention that EMC is finally joining the SPC (Storage Performance Council). As I've pointed in their past, their absence from this most standard industry benchmark was puzzling, kudos for rectifying this omission. I do have some advice for EMC (and all other vendors that have already posted results): Do show results
- [EMC conclusively proves that VNX bottlenecks NAS performance](https://recoverymonkey.org/2011/02/24/emc-conclusively-proves-that-vnx-bottlenecks-nas-performance/) - A bit of a controversial title, no? Allow me to elaborate. EMC posted a new SPEC SFS result as part of a marketing stunt (which is working, look at what I'm doing - I'm talking about them, if only to clear the air). In simple terms, EMC got almost 500,000 SPEC SFS NFS IOPS (not
- [Examining value for money regarding the SPEC benchmarks](https://recoverymonkey.org/2011/02/28/examining-value-for-money-regarding-the-spec-benchmarks/) - Some of the comments in my previous post asked about $/IOPS and $/TB. Since SPEC doesn't require prices to be listed, I did my own analysis. The NetApp numbers are simply 4x the existing 6240 result, which is what EMC did with their submission, they used 4x separate VNX systems and aggregated the result. I
- [OS X and SSD - tunings plus performance with and without TRIM](https://recoverymonkey.org/2011/05/05/os-x-ssdtunings-plus-performance-with-and-without-trim/) - I finally decided to spring for a SSD for my laptop since I hammer it heavily with a lot of mostly random I/O. It was money well spent. I went for an Intel 320 model, since it includes extra capacitors for flushing the cache in the event of power failure, and has RAID-4 onboard for
- [NetApp vs EMC usability report: malice, stupidity or both?](https://recoverymonkey.org/2011/05/12/netapp-vs-emc-usability-report-malice-stupidity-or-both/) - Most are familiar with Hanlon's Razor: Never attribute to malice that which is adequately explained by stupidity. A variation of that is: Never attribute to malice that which is adequately explained by stupidity, but don't rule out malice. You see, EMC sponsored a study comparing their systems to ones from the company they look up
- [Buyer beware: is your storage vendor sizing properly for performance, or are they under-sizing technologies like Megacaching and Autotiering?](https://recoverymonkey.org/2011/06/29/buyer-beware-is-your-storage-vendor-sizing-properly-for-performance-or-are-they-under-sizing-technologies-like-megacaching-and-autotiering/) - With the advent of performance-altering technologies (notice the word choice), storage sizing is just not what it used to be. I'm writing this post because more and more I see some vendors not using scientific methods to size their solution, instead aiming to reach a price point, hoping the technology will work to achieve the requisite
- [Interpreting $/IOPS and IOPS/RAID correctly for various RAID types](https://recoverymonkey.org/2011/10/19/interpreting-iops-and-iopsraid-correctly-with-spc-1-results/) - There are some impressive new scores at storageperformance.org, with the usual crazy configurations of thousands of drives etc. Regarding price/performance: When looking at $/IOP, make sure you are comparing list price (look at the full disclosure report, that has all the details for each config). Otherwise, you could get
- [When competitors try too hard and miss the point - part two](https://recoverymonkey.org/2014/09/18/when-competitors-try-too-hard-and-miss-the-point-part-two/) - This will be another FUD-busting post in the two-part series (first part here). It’s interesting how some competitors, in their quest to beat us at any cost, set aside all common sense. Recently, an Oracle blogger attempted to understand a document NetApp originally wrote in the 90’s (and which we haven’t really updated since, which
- [NetApp posts world-record SPEC SFS2008 NFS benchmark result](https://recoverymonkey.org/2011/11/01/netapp-posts-world-record-spec-sfs2008-nfs-benchmark-result/) - Just as NetApp dominated the older version of the SPEC SFS97_R1 NFS benchmark back in May of 2006 (and was unsurpassed in that benchmark with 1 million SFS operations per second), the time has come to once again dominate the current version, SPEC SFS2008 NFS. Recently we have been focusing on benchmarking realistic configurations that
- [NetApp delivers 2TB/s performance to giant supercomputer for big data](https://recoverymonkey.org/2012/02/10/netapp-delivers-1tbs-performance-to-giant-supercomputer-for-big-data/) - (Edited: My bad, it was 2TB/s, up from 1.3TB/s, the solution has been getting bigger and upgraded, plus the post talks about the E5400, the newer E5600 is much faster). What do you do when you need so much I/O performance that no one single storage system can deliver it, no matter how large? To
- [NetApp posts great Cluster-Mode SPC-1 result](https://recoverymonkey.org/2012/06/20/netapp-posts-great-cluster-mode-spc-1-result/) - We've been busy at NetApp... busy perfecting the industry's only scale-out unified platform, among other things. We've already released ONTAP 8.1, which, in Cluster-Mode, allows 24 nodes (each with up to 8TB cache) for NAS
- [What is hard disk short stroking?](https://recoverymonkey.org/2012/07/24/what-is-hard-disk-short-stroking/) - This is going to be a short post, to atone for my past sins of overly long posts but mostly because I want to eat dinner. On storage systems with spinning disks, a favorite method for getting more performance is short-stroking the disk. It's a weird term but firmly based on science. Some storage vendors
- [So now it is OK to sell systems using "Raw IOPS"???](https://recoverymonkey.org/2012/10/22/so-now-it-is-ok-to-sell-systems-using-raw-iops/) - As the self-proclaimed storage vigilante, I will keep bringing these idiocies up as I come across them. So, the latest "thing" now is selling systems using "Raw IOPS" numbers. Simply put, some vendors are selling based on the aggregate IOPS the system will do based on per-disk statistics and nothing else. They are not providing
- [Are you doing a disservice to your company with RFPs?](https://recoverymonkey.org/2012/12/21/are-you-doing-a-disservice-to-your-company-with-rfps/) - Whether we like it or not, RFPs (Request For Proposal) are a fact of life for vendors. It usually works like this: A customer has a legitimate need for something. They decide (for whatever reason) to get bids from different vendors. They then craft an RFP document that is either: Carefully written, with the best intentions, so that
- [Filesystem and OS benchmark extravaganza: Software makes a huge difference](https://recoverymonkey.org/2013/02/04/filesystem-and-os-benchmark-extravaganza-software-makes-a-huge-difference/) - I've published benchmarks of various OSes and filesystems in the past, but this time I thought I'd try a slightly different approach. For the regular readers of my articles, I think there is something in here for you. The executive summary is this: Software is what makes hardware sing. All too frequently I see people
- [Are some flash storage vendors optimizing too heavily for short-lived NAND flash?](https://recoverymonkey.org/2013/02/22/are-some-flash-storage-vendors-optimizing-too-heavily-for-short-lived-nand-flash/) - I really resisted using the "flash in the pan" phrase in the title… first, because the term is overused and second, because I don't believe solid state is of limited value. On the contrary. However, I am noticing an interesting trend among some newcomers in the array business, desperate to find a flash niche to
- [Are SSDs reliable enough? The importance of extensive testing under adverse conditions.](https://recoverymonkey.org/2013/04/24/are-ssds-reliable-enough-the-importance-of-extensive-testing-under-adverse-conditions/) - Recently, interesting research (see here) from researchers at Ohio State was presented at USENIX. To summarize, they tested 15 SSDs, several of them "Enterprise" grade, and subjected them to various power fault conditions. Almost all the drives suffered data loss that should not have occurred, and some were so corrupt as to be rendered utterly
- [More EMC VNX caveats](https://recoverymonkey.org/2013/05/06/more-emc-vnx-caveats/) - Lately, when competing with VNX, I see EMC using several points to prove they're superior (or at least not deficient). I'd already written this article a while back, and today I want to explore a few aspects in more depth since my BS pain threshold is getting pretty low. The topics discussed: VNX space efficiency
- [How to decipher EMC's new VNX pre-announcement and look behind the marketing.](https://recoverymonkey.org/2013/05/16/how-to-decipher-emcs-new-vnx-pre-announcement-and-look-behind-the-marketing/) - It was with interest that I watched some of EMC's announcements during EMC World. Partly due to competitor awareness, and partly due to being an irrepressible nerd, hoping for something really cool. BTW: Thanks to Mark Kulacz for assisting with the proof points. Mark, as much as it pains me to admit so, is quite
- [EMC's VNX2 forklift: The importance of hardware re-use, slowing down obsolescence, and maximizing your investment](https://recoverymonkey.org/2013/09/24/emcs-vnx2-forklift-the-importance-of-hardware-re-use-slowing-down-obsolescence-and-maximizing-your-investment/) - It was with interest that I watched the launch of EMC's VNX refresh. The updated boxes got some long-awaited features, EMC talked a lot about how some pretty severe single-threaded bottlenecks were removed, more CPU and memory was put in, and there was much rejoicing. Not really trying to pick on the new boxes (that
- [Is convenience devaluing products? Does quality suffer because of it?](https://recoverymonkey.org/2014/01/24/is-convenience-devaluing-products-does-quality-suffer-because-of-it/) - Kind of a long hiatus posting (far too busy working on cool stuff) and for you looking for a deep technical post this may not be it… but here goes anyway since the content may also apply to my more usual subjects. Recently I decided to discard my Luddite membership card and join the hordes
- [When competitors try too hard and miss the point](https://recoverymonkey.org/2014/09/09/when-competitors-try-too-hard-and-miss-the-point/) - (edit: fixed the images) After a long hiatus, we return to our regularly scheduled programming with a 2-part series that will address some wild claims Oracle has been making recently. I'm pleased to introduce Jeffrey Steiner, ex-Oracle employee and all-around DB performance wizard. He helps some of our largest customers with designing high performance solutions for
- [Beware of storage performance guarantees](https://recoverymonkey.org/2014/12/23/beware-of-storage-performance-guarantees/) - Ah, nothing to bring joy to the holidays like a bit of good old-fashioned sales craziness. Recently we started seeing weird performance “guarantees” by some storage vendors, who seem will try anything for a sale. Probably by people that haven’t read this. It goes a bit like this: “Mr. Customer, we guarantee our storage will
- [NetApp Posts Top Ten SPC-1 Price-Performance Results for the new EF560 All-Flash Array](https://recoverymonkey.org/2015/01/27/netapp-posts-top-ten-spc-1-price-performance-results-for-the-new-ef560-all-flash-array/) - I’m happy to announce that today we announced the new, third-gen EF560 all-flash array, and also posted SPC-1 results showing the impressive performance it is capable of in this extremely difficult benchmark. If you have no time to read
- [Marketing fun: NetApp industry first of up to 13 million IOPS in a single rack](https://recoverymonkey.org/2015/02/18/marketing-fun-netapp-industry-first-of-up-to-13-million-iops-in-a-single-rack/) - I’m seeing some really “out there” marketing lately, every vendor (including us) trying to find an angle that sounds exciting while not being an outright lie (most of the time). A competitor recently claimed an industry first of up to 1.7 million (undefined type) IOPS in a single rack. The number (which admittedly sounds solid),
- [NetApp posts SPC-1 Top Ten Performance results for its high end systems - Tier 1 meets high functionality and high performance](https://recoverymonkey.org/2015/04/22/netapp-posts-spc-1-top-ten-performance-results-for-its-high-end-systems-tier-1-meets-high-functionality-and-high-performance/) - It’s been a while since our last SPC-1 benchmark submission with high-end systems in 2012. Since then we launched all new systems, and went from ONTAP 8.1 to ONTAP 8.3, big jumps in both hardware and software. In 2012 we posted an SPC-1 result with a 6-node FAS6240 cluster - not our biggest system at
- [Calculating the true cost of space efficient Flash solutions](https://recoverymonkey.org/2015/06/15/calculating-the-true-cost-of-space-efficient-flash-solutions/) - In this post I will try to help you understand how to objectively calculate the cost of space-efficient storage solutions - there’s just too much misinformation out there and it’s getting irritating since certain vendors aren’t exactly honest with how they do certain calculations… A brief history lesson: The faster a storage device, the smaller
- [NetApp Enterprise Grade Flash](https://recoverymonkey.org/2015/06/24/netapp-enterprise-grade-flash/) - June 23rd marked the release of new NetApp Enterprise Flash technology. The release consists of: New ONTAP 8.3.1 with significant performance, feature and usability enhancements New Inline Storage Efficiencies New All-Flash FAS systems (AFF works only with SSDs) New, aggressive pricing model New maintenance options (price protection on warranty for up to 7 years, even
- [Architecture has long term scalability implications for All Flash Appliances](https://recoverymonkey.org/2015/11/26/architecture-has-long-term-scalability-implications-for-all-flash-appliances/) - Recently, many vendors announced the availability of large SSDs. It’s not extremely exciting - it’s just a larger storage medium. Sure, it’s really advanced 3D NAND, it’s fast and ultra-reliable, and will allow some nicely dense configurations at a reduced $/GB. Another day in Enterprise Storage Land. But, ultimately, that’s how drives roll - they
- [NetApp E-Series posts top ten price performance SPC-2 result](https://recoverymonkey.org/2015/12/07/netapp-e-series-posts-top-ten-price-performance-spc-2-result/) - NetApp published a Top Ten Price/Performance SPC-2 result for the E5660 platform (the all-SSD EF560 variant of the platform also comfortably placed in the Top Ten Price/Performance for the SPC-1 test). In this post I will explain why the E-Series platform is an ideal choice for workloads requiring high performance density while being cost effective.
- [7-Mode to Clustered ONTAP Transition](https://recoverymonkey.org/2016/02/05/7-mode-to-clustered-ontap-transition/) - I normally deal with different aspects of storage (arguably far more exciting) but I thought I would write something to provide some common sense perspective on the current state of 7-Mode to cDOT adoption. I will tackle the following topics: cDOT vs 7-Mode capabilities Claims that not enough customers are moving to cDOT 7-Mode to
- [Will your Infrastructure Survive if you Disappear?](https://recoverymonkey.org/2017/10/10/will-your-infrastructure-survive-if-you-disappear/) - This one is dedicated to an old friend that’s been asking me to write about certain technologies like a very specific filesystem and whether it should be used as the basis for enterprise storage. He loves using open source stuff for business, mostly to save money, but also for the control it affords and the
- [Going Green: Why I Joined Nimble Storage](https://recoverymonkey.org/2016/03/28/going-green-why-i-joined-nimble-storage/) - I am proud to announce that, as of today, I am a member of the Nimble Storage team. This marks the end of an era - I spent quite a bit of time at NetApp: learned a lot, did a lot - by the end I had my hands in all kinds of sausage making…
- [The Well-Behaved Storage System: Automatic Noisy Neighbor Avoidance](https://recoverymonkey.org/2016/04/08/the-well-behaved-storage-system-automatic-noisy-neighbor-avoidance/) - This topic is very near and dear to me, and is one of the big reasons I came over to Nimble Storage. I’ve always believed that storage systems should behave gracefully and predictably under pressure. Automatically. Even under complex and difficult situations. It sounds like a simple request and it makes a whole lot of
- [The Importance of Automated Headroom Management](https://recoverymonkey.org/2016/08/22/the-importance-of-automated-headroom-management/) - Before we begin: This is another vendor-neutral post. I realize there may be no architecture that can do everything I’m proposing, but some may come closer to what you need than others. Whether you’re a vendor or a customer, see it as stuff you should be doing or be asking for respectively... Headroom! Headroom is
- [The Importance of SSD (and other) Firmware Updates](https://recoverymonkey.org/2016/08/03/the-importance-of-ssd-firmware-updates/) - I wanted to bring this crucial issue to light since I’m noticing several storage vendors being either cavalier about this or simply unaware. I will explain why solutions that don’t offer some sort of automated, live SSD firmware update mechanism are potentially extremely risky propositions. Yes, this is another “vendor hat off, common sense hat
- [Practical Considerations for Implementing NVMe Storage](https://recoverymonkey.org/2016/12/09/practical-considerations-for-implementing-nvme-storage/) - Before we begin, something needs to be clear: Although dual-ported NVMe drives are not yet cost effective, the architecture of Nimble Storage is NVMe-ready today. And always remember that in order to get good benefits from NVMe, one needs to implement it all the way from the client. Doing NVMe only at the array isn’t
- [Progress Needs Trailblazers](https://recoverymonkey.org/2017/01/09/progress-needs-trailblazers/) - I got the idea for this stream-of-consciousness (and possibly too obvious) post after reading some comments regarding new ways to do high speed I/O. Not something boring like faster media or protocols, but rather far more exotic approaches that require drastically rewriting applications to get the maximum benefits of radically different architectures. The comments, in essence,
- [Nimble Cloud Volumes Removing Risk From Cloud Storage](https://recoverymonkey.org/2017/02/27/nimble-cloud-volumes-removing-risk-from-cloud-storage/) - As of February 27th 2017, Nimble Storage announced Nimble Cloud Volumes (NCV), marking Nimble’s entry into the cloud space. For those short on time: Nimble Cloud Volumes is block storage as a service, works with compute from AWS & Azure, and avoids the significant block storage drawbacks of those two providers. In essence, it is
- [Status and the Nimble acquisition by HPE](https://recoverymonkey.org/2017/09/22/status-and-the-nimble-acquisition-by-hpe/) - Just a quick post since I’m getting inquiries regarding the status of my vital signs. Yes, I’m alive, just very busy helping with the ongoing integration of Nimble Storage into HPE and all kinds of cool AI. All kinds of training to be done all around, positioning guides to be written, strategy to plan, technology
- [The true XIV fail condition finally revealed (?)](https://recoverymonkey.org/2009/02/05/the-true-xiv-fail-condition-finally-revealed/) - I just got this information: For XIV to be in jeopardy you need to lose 1 drive from one of the host-facing ingest nodes AND 1 drive from the normal data nodes within a few minutes (so there's no time to rebuild) while writing to the thing. Have no way of confirming this but it
- [Massive benchmark comparison between Windows XP, Vista and 2008 Server, 32- and 64-bit](https://recoverymonkey.org/2008/06/16/massive-benchmark-comparison-between-windows-xp-vista-and-2008-server-32-and-64-bit/) - Found this while surfing and couldn't resist posting the link. This guy did a massive array of tests on pretty much all versions of Windows that matter at the moment. The short version? If it's performance you're after, there's no clear winner, since they all have their strengths. Overall, of the currently-supported OSes 2008 server
- [Ate at Bobby Van's in Manhattan](https://recoverymonkey.org/2007/08/08/ate-at-bobby-vans-in-manhattan/) - After the glowing reviews of a colleague I ate at Bobby Van's on 230 Park. It's considered to be one of the better NYC steakhouses (there are 4 in the chain, most in NYC). I got a bone-in ribeye and some mushrooms. I asked for a 145°F internal temperature and the decrepit waiter looked at
- [Just ate at Keens Steakhouse in NYC](https://recoverymonkey.org/2007/02/28/just-ate-at-keens-steakhouse-in-nyc/) - Well, just finished the meal. Steak was ordered medium-rare, arrived medium, a bit chewy (but still tasty) and not hot. I was too tired to complain and ate military style (i.e. it was gone in a minute). The 26oz ribeye I had at Wollensky's a couple years ago was a religious experience, comparatively. That thing

## Pages

- [About](https://recoverymonkey.org/about/) - This blog is owned and moderated by Dimitris Krekoukias. The purpose of the blog is to provide commentary on data management, storage, performance, backup, recovery and archiving - and beyond. Any views posted here are strictly my own and not necessarily my employer's (HPE). This blog is paid for and managed by me personally and
- [Coming Soon](https://recoverymonkey.org/coming-soon/) - I'm working on something amazing!But don't worry, I'll back soon.

## Categories

- [General](https://recoverymonkey.org/category/general/) - General category for posts
- [Backup](https://recoverymonkey.org/category/backup/)
- [Performance](https://recoverymonkey.org/category/performance/)
- [Food](https://recoverymonkey.org/category/food/)
- [Rants](https://recoverymonkey.org/category/rants/)
- [New Technologies](https://recoverymonkey.org/category/new-technologies/)
- [Speculation](https://recoverymonkey.org/category/speculation/)
- [IT exotica](https://recoverymonkey.org/category/it-exotica/)
- [Humor](https://recoverymonkey.org/category/humor/)
- [FUD](https://recoverymonkey.org/category/fud/)
- [Storage](https://recoverymonkey.org/category/storage/)
- [Analytics](https://recoverymonkey.org/category/analytics/)
- [Big Data](https://recoverymonkey.org/category/big-data/)
- [HCI](https://recoverymonkey.org/category/hci/)
- [Reliability](https://recoverymonkey.org/category/reliability/)
- [Cloud](https://recoverymonkey.org/category/cloud/)
- [AI](https://recoverymonkey.org/category/ai/)
- [Security](https://recoverymonkey.org/category/security/)
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- [3PAR](https://recoverymonkey.org/category/3par/)
- [Strategy](https://recoverymonkey.org/category/strategy/)
- [dHCI](https://recoverymonkey.org/category/dhci/)
- [Primera](https://recoverymonkey.org/category/primera/)
- [SaaS](https://recoverymonkey.org/category/saas/)
- [DataOps](https://recoverymonkey.org/category/dataops/)

## Tags

- [NetApp](https://recoverymonkey.org/tag/netapp/)
- [Vblock](https://recoverymonkey.org/tag/vblock/)
- [VMware](https://recoverymonkey.org/tag/vmware/)
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- [Firmware](https://recoverymonkey.org/tag/firmware/)
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- [Failover](https://recoverymonkey.org/tag/failover/)
- [Predictability](https://recoverymonkey.org/tag/predictability/)
- [Headroom](https://recoverymonkey.org/tag/headroom/)
- [NVMe](https://recoverymonkey.org/tag/nvme/)
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- [Risk](https://recoverymonkey.org/tag/risk/)
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- [Extent](https://recoverymonkey.org/tag/extent/)
- [Block Folding](https://recoverymonkey.org/tag/block-folding/)
- [Dell](https://recoverymonkey.org/tag/dell/)
- [SCM](https://recoverymonkey.org/tag/scm/)
- [Snapshots](https://recoverymonkey.org/tag/snapshots/)
- [Backup](https://recoverymonkey.org/tag/backup/)
- [DR](https://recoverymonkey.org/tag/dr/)
- [Security](https://recoverymonkey.org/tag/security/)
- [3PAR](https://recoverymonkey.org/tag/3par/)
- [Memory-Driven](https://recoverymonkey.org/tag/memory-driven/)
- [The Machine](https://recoverymonkey.org/tag/the-machine/)
- [Lock-In](https://recoverymonkey.org/tag/lock-in/)
- [Strategy](https://recoverymonkey.org/tag/strategy/)
- [dHCI](https://recoverymonkey.org/tag/dhci/)
- [Grid Storage](https://recoverymonkey.org/tag/grid-storage/)
- [PowerStore](https://recoverymonkey.org/tag/powerstore/)
- [Primera](https://recoverymonkey.org/tag/primera/)
- [MTTDL](https://recoverymonkey.org/tag/mttdl/)
- [HANA](https://recoverymonkey.org/tag/hana/)
- [Alletra](https://recoverymonkey.org/tag/alletra/)
- [DSCC](https://recoverymonkey.org/tag/dscc/)
- [Unified DataOps](https://recoverymonkey.org/tag/unified-dataops/)
- [SaaS](https://recoverymonkey.org/tag/saas/)
- [Alletra Storage MP](https://recoverymonkey.org/tag/alletra-storage-mp/)
- [HPE GreenLake for Block Storage](https://recoverymonkey.org/tag/hpe-greenlake-for-block-storage/)
- [HPE GreenLake for File Storage](https://recoverymonkey.org/tag/hpe-greenlake-for-file-storage/)
- [NAS](https://recoverymonkey.org/tag/nas/)
- [Zerto](https://recoverymonkey.org/tag/zerto/)
- [Ransomware](https://recoverymonkey.org/tag/ransomware/)
- [Resiliency](https://recoverymonkey.org/tag/resiliency/)
- [guarantee](https://recoverymonkey.org/tag/guarantee/)
- [X10000](https://recoverymonkey.org/tag/x10000/)
- [B10000](https://recoverymonkey.org/tag/b10000/)
- [KV Cache](https://recoverymonkey.org/tag/kv-cache/)