Hi Jack,
One other option you can consider is specifying an existing snapshot as your NDMP backup source. For example, if you configured your filer to take nightly snapshots at say 11:00pm and had your scheduled NDMP backups start at sometime after that, then you could configure the backup job to use the "nightly.0" snapshot as the backup source. When a snapshot is specified in this way, NDMP driven dump will not create another one for backup.
Any backup software should allow you to define a job that uses an existing snapshot (or a snapshot that will exist at the time the job will run) for backup. Of course it's simplest if you configure the job to use a static snapshot name rather than one which will change each time the job is run so NetApp scheduled automatic snapshots will work perfectly.
HTH.
Kevin
Kevin Mascarenhas KMascarenhas@syncsort.com
Syncsort Inc. 50 Tice Blvd. Woodcliff Lake, NJ 07677 Tel: (201) 930-9700 http://www.syncsort.com
----- Original Message ----- From: "Jack Lyons" jack.lyons@martinagency.com To: "Paul Galjan" galjan@gmail.com Cc: toasters@mathworks.com Sent: Friday, October 01, 2004 6:45 AM Subject: Re: Backups of Snapshots
I guess that makes sense. it would have been nice to be able to look restore a snapshot directory from 4 months ago!
It looks like I could do a monthly snapshot manually and see how much
space
it takes up. Right now, my snapshots are only taking up 23% of the space allocated for snapshots. I am going to experiment with taking 6 "monthly snapshots"
Jack ----- Original Message ----- From: "Paul Galjan" galjan@gmail.com To: "Jack Lyons" jack.lyons@martinagency.com Cc: toasters@mathworks.com Sent: Thursday, September 30, 2004 7:23 PM Subject: Re: Backups of Snapshots
Hi Jack,
The snapshot directory is not included as part of the NDMP dump. When the filer is told to do an NDMP dump, it actually takes a snapshot, then dumps the data from that snapshot.
--paul
On Thu, 30 Sep 2004 18:41:11 -0400, Jack Lyons jack.lyons@martinagency.com wrote:
I had a user request a file from 4 months ago. The tape backups
happened
at 11:00 PM but the file they needed was earlier in the day. I was
thinking
that the backups might have included the snapshot directory but it didn't? Is that configurable?
Jack