Point one reminds me of a question I’ve
been pondering. I’ve got a filer using RAID-DP with 3X14-disk raid
groups, and currently 7 spares. Ideally I’d only keep two spares, but I’m
still not clear on the pros/cons of adding a 5 disk raid group, effectively
only adding three more data disks to the volume.
I’m not in a space crunch currently
but I certainly will be at some point. Is it best to leave so many extra
spares until I can add a full raid group all at once? Or in my case is it not
that important?
--
Michael
W. Sphar - IS&T - Lead Systems Administrator
SMBU
Engineering Support Services, BMC Software
From: owner-
Sent: Saturday, March 17, 2007
6:43 PM
To: Darish Rajanayagam;
Subject: RE: FAS3020 - aggr best
practises.
Hi Darish
Welcome to NetApp and to Toasters!
1. You can do an "aggr add
aggr0 56" or use the FilerView GUI and add all 56 of the new disks into
the existing aggregate. You can physically add the shelves and add
them to the aggr while the filer is up and running. I see no
disadvantages, and that is the best practice. (Add disks in large sets,
ideally the raid group size).