Bill> Even if it is possible, I would recommend against it. Bill> Performance of an NDMP backup from a named snapshot is Bill> significantly slower than a volume level NDMP backup.
Hi Guys,
This seems odd to me because NDMP creates a snapshot and backs that up, not the live volume. I can't see why backing up a NDMP created snapshot vs. a manually created snapshot would perform differently. Maybe you are thinking of volume dump vs. subtree dump.
If you dump /vol/volname/.snapshot/snapname then NDMP is smart enough to do a volume dump of the snapshot, instead of a subtree dump.
Blech, not good to hear.
Bill> Are you performing your backup directly from your source volume Bill> or a snapvault secondary volume?
Ideally, directly from the source volumes, plural. I'm going to need to backup the volumes from a snapshot time that's as close as possible to the same time, then I can take my time doing the actual NDMP to tape of the data.
So it's looking like my best plan would be to just do:
foreach v (data_a data_b data_c) snap create $v flexclone_backup vol clone create ${v}_clone_bkp -s none -b ${v} flexclone_backup done
then backup my new data_a_clone_bkup... volumes via NDMP.
John
Bill> On Wed, May 9, 2012 at 1:53 PM, John Stoffel Bill> john.stoffel@taec.toshiba.comwrote:
Guys,
Anyone know if it's possible do an NDMP backup (using CommVault) of a *named* snapshot? Basically I need to snapshot two or more volumes at the same time (I can do this in a pre-script) and then let the snapshots be backed up.
I guess I could be silly and just create a flex clone volumes and then back those volumes up instead, which would get rid of the issue, but would complicate things a bit more.
Thanks, John John Stoffel - Senior Staff Systems Administrator - System LSI Group Toshiba America Electronic Components, Inc. - http://www.toshiba.com/taec john.stoffel@taec.toshiba.com - 508-486-1087 _______________________________________________ Toasters mailing list Toasters@teaparty.net http://www.teaparty.net/mailman/listinfo/toasters
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