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:

  1. cDOT vs 7-Mode capabilities
  2. Claims that not enough customers are moving to cDOT
  3. 7-Mode to cDOT transition is seen by some as difficult and expensive
  4. Some argue it might make sense to look at competitors and move to those instead
  5. What programs and tools are offered by NetApp to make transition easy and quick
  6. Migrating from competitors to cDOT

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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…

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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 is admittedly our bad) that explains how WAFL, the block layout engine of Data ONTAP (the storage OS on the FAS platform) works at a high level.

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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 Oracle DBs:

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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 realistic performance estimates for the proposed workload, with the appropriate RAID type and I/O sizes and hot vs cold data and what the storage controller overhead will be to do everything. That’s probably too much work.

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