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 think:
- You will instead be shackled to the virtualization provider
- You won’t have a clue where your stuff is
- If you want to retire an array you could have problems (imagine creating a LUN composed of LUNs from 3 different arrays)
- You STILL have to use the management interfaces of the back-end arrays, since you still have to provision the storage. Instead of provisioning to hosts you provision to the virtualizer.
So, what have you gained, exactly?