David Schairer njal@concentric.net writes:
It will kill your performance, not now, but once you get things filled up. This has not historically been part of NetApps docs but I believe it's becoming so (Hi, Sam!).
Make a separate volume of 18s, migrate data, do what you have to, but don't mix your shelves. It's like crossing the streams.
Howdy- Could I ask for a little more clarififcation about this (either from you or the folks at NetApp)? The way I read this message was he was going to add 9G disks to a volume composed of 9GB disks and and 18GB disks to a volume composed of 18GB disks. Are you saying that:
a) having both 9GB and 18GB disks on the same *filer* is bad? b) mixing 9GB and 18GB drives in the same *volume* is bad (I would guess this would be true if one didn't watch out for the parity & spare drive gotchas)? c) having a volume served from two different *shelves* is bad (can't believe this is the case)?
Thanks!
Respectfully, David N. Blank-Edelman Director of Technology College of Computer Science Northeastern University