Greetings,
I have a question about Verification Jobs that I thought I'd throw to
the community.
Basically I need to know how fast a verification job should be compared
to the backup it's verifying.
Here's the setup:
I run a full backup of several servers on Friday nights to an LTO-2
Autochanger.
I then go back and verify 4 of these backups with Volume to catalog
verify jobs.
The full backup of my file server took 7 hours 15 minutes on the weekend
just gone. The verify of the same job took 6 hours 58 minutes (almost as
long as the backup!)
I expected it to be faster than the backup (well more than 17 minutes
faster anyway) because I'm not dealing with the FD at all, and am just
scanning the tape.
Am I mistaken in this, or is this verify job taking longer than you'd
expect?
Can anyone who performs these jobs confirm whether I should expect them
to take as long as the backup?
The problem is the total time of my full backups plus verify's now
exceeds 24 hours, impacting the schedule of the next nights incrementals.
On a related note - A couple of weeks ago I had a server unexpectantly
offline over the weekend and the verify job failed because it couldn't
connect to the File Daemon! This confused me as the system was comparing
the volume to the catalog and shouldn't have needed to talk to the file
daemon at all.
Would the FD have been contacted as part of a standard job handshake
process and then left out of the loop, or is it actually used when
performing the volume -> catalog compare?
Any info would be appreciated,
Cheers,
Troy.
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