There have been a few bugs in the past where multiple simultaneous snapshot creation attempts would step on one another (snapmirror and backups all create snapshots in order to function).  I think most of these have been resolved in later ontap releases (beyond 7.0.2).  To be safe, I wouldn’t try to take an hourly snapshot and backup at the same time…

As for performance, there’s always the possibility of having issues due to snapmirror and backup running at the same time, but it would be based on disk I/O – if you’re throttling snapmirrors you probably won’t notice much.  Regarding the snapshot creation process itself, you’d have to have a pretty heavily loaded filer to notice performance degradation due to snapshot creation\deletion (to the point of it being overloaded, generally).  As with anything ONTAP, the bugs typically only come to the surface if the filer is at max performance capacity.

Glenn

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From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Steven Mandrake
Sent: Thursday, January 04, 2007 10:05 AM
To: toasters@mathworks.com
Subject: Questions regarding snapshots

Hello,

Just a generic question. Can I run ndmp backups and run snapmirrors and snapshots at the same time? Will this affect my backups or snapshots in anyway? Integrity of the backup or performance?

Thanks,

Steve