Sorry only read part of the email.

Hope the folowing helps

What I do is using the snapdrive CLI is something along the following lines.

Delete snapshot "snapshot5" Rename snapshot "snapshot4 to snapshot5" Rename snapshot "snapshot3 to snapshot4" Rename snapshot "snapshot2 to snapshot3" Rename snapshot "snapshot1 to snapshot2" Snapshot create snapshot1

Thanks

Matt

----- Original Message ----- From: Daniel Keisling daniel.keisling@austin.ppdi.com To: Davies,Matt; scl@sasha.acc.virginia.edu scl@sasha.acc.virginia.edu Cc: toasters@mathworks.com toasters@mathworks.com Sent: Tue Aug 05 17:55:02 2008 Subject: RE: Automatically delete snapshots based on number and not space availability

I create snapshots all day long using snapdrive.

My question is how to automatically delete snapshots based on the _number_ of snapshots and not space availability (which is what the autodelete setting uses), when those snapshots are taking from the host (ie, snapdrive or regular rsh/ssh command).

Daniel

-----Original Message----- From: Davies,Matt [mailto:MDAVIES@generalatlantic.com] Sent: Tuesday, August 05, 2008 11:51 AM To: Daniel Keisling; scl@sasha.acc.virginia.edu Cc: toasters@mathworks.com Subject: Re: Automatically delete snapshots based on number and not space availability

If you have snapdrive installed, then you can use the snapdrive CLI to create the snap from the host.

The other options are rsh or ssh to the filer to create the snapshot.

Cheers

Matt

----- Original Message ----- From: owner-toasters@mathworks.com owner-toasters@mathworks.com To: Stephen C. Losen scl@sasha.acc.virginia.edu Cc: toasters@mathworks.com toasters@mathworks.com Sent: Tue Aug 05 17:38:00 2008 Subject: RE: Automatically delete snapshots based on number and not space availability

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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