Everyone is assuming that the NetApp will be taking the snapshots, which is incorrect. I must do the snapshots from the host side in order to quiesce the filesystem (actually, the database). My databases run on LUNs over FCP. I do not want to try and coordinate the databases on the host being quiesced at the same time the filer will automatically take the snapshot.
Daniel
-----Original Message----- From: Stephen C. Losen [mailto:scl@sasha.acc.Virginia.EDU] Sent: Tuesday, August 05, 2008 11:01 AM To: Daniel Keisling Cc: toasters@mathworks.com Subject: Re: Automatically delete snapshots based on number and not space availability
Greetings,
I take a daily snapshots (named ss-YYYYMMDDHHmm) of several volumes on my filers. I would like to automatically delete the oldest snapshot (assuming it's not busy) when a certain number of snapshots are
present
in the volume (ie, only keep the latest 3 snapshots). Is this
possible?
If not, does anyone have any scripts where it can be done from a host?
TIA,
Daniel
Any reason you can't use the "snap sched" command for this?
snap sched volname 0 3 0
This takes a snapshot at midnight and keeps at most 3.
If midnight isn't suitable you can configure the hourly option to take one hourly per day and keep 3. Suppose you want 18:00
snap sched volname 0 0 3@18
Steve Losen scl@virginia.edu phone: 434-924-0640
University of Virginia ITC Unix Support
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