What will happen if I add a disk to a volume (NetApp C720)? I learned the hard way that adding the drive to the shelf interrupted all NFS ops for 15 seconds, the docs said it would take that long to add it as a hot spare, but didn't mention that the filer would completely freeze while it did it. If I add a disk to a volume, what will it do to performance, and for how long? I don't mean long-range gains from having the data spread over more spindles, I mean what immediate impact will it have on current NFS clients. Will it just be a temporary increase in CPU as it spreads the data or will it freeze for some period of time, and if so for how long? Current sustained load on the filer is several hundred NFS ops/sec, and any pauses cause significant problems on the client systems, so I want to have a better understanding of what will happen when I give the vol add command before I actually do it.
Thanks, Frank -- Frank Smith fsmith@hoovers.com Systems Administrator Voice: 512-374-4673 Hoover's Online Fax: 512-374-4501