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BackupExec & tape library

Posted on 2007-12-04
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Hi,

I have BackupExec 11d and a Dell PowerVault TL2000 tape library.

If I want to use a Grandfather Father Son backup strategy, and I have tapes labeled as such, how to I control which tape BackupExec uses on which day?

When I had a single tape drive, the user obviously put the correct tape in.

Should I be partitioning the tape library?
How do I ensure Tuesdays tapes are only used for Tuesday? etc

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Question by:balletbert
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by:Hedley Phillips
ID: 20410075
We set the overwrite and append period so that by the time the tape is ready to be used again it has come out of protection and can be overwritten.

We also partition our library so that there is one partition per job. For us this is

1 - 15 Mon - Fri
16 - 17 Sat
18 - 19 Sun
20 Cleaning slot

And set up Media sets for each job. We then just load a weeks media at a time and the job takes the next one in line as that comes out of protection the day before it is ready.
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by:balletbert
ID: 20416595
Yeah, I started playing around with the partitioning after I posted the question.

I see how that works, but for the Monday to Friday tapes, do you just have to rely on the overwrite and append period for each tape to control which tapes are used?

I guess if you realy wanted to define it, you'd have to partition the library further for each day. Then you'd have to create a job for each day.
That's just silly.
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Hedley Phillips earned 195 total points
ID: 20418357
"I see how that works, but for the Monday to Friday tapes, do you just have to rely on the overwrite and append period for each tape to control which tapes are used?"

Short answer is yes.

It works really well. Our partition of 1 - 15 has two weeks worth of tapes and a spare slot (out of the 4 week schedule we run) and each Tuesday I load up another week to replace the ones used and removed the previous week. Their overwrite period is set to 27 days, 0 append, as the media set is configured to overwrite first then append if it can. The morning of the day the tape is required, it comes out of overwrite protection and is used by that job. It works really well and I rarely have any problems.

The only issue is with new tapes or if there are wider problems with the system and you have to get everything into synch again. For this I created a new media set called ~~~ HOLD ~~~ and it has infinite overwrite and append. New tapes are allocated to this media set when first loaded and kept there until they are required, at which point I allocate them to the Weekly Media Set with the protection mentioned before.

Once the tapes have been through the 'mill' once and had their protection set correctly you will find this is an almost hands off procedure.
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by:Hedley Phillips
ID: 20426244
Thanks for points and glad I could help.


/Mad
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