OK, upon further investigation, my last post on the topic was WRONG.
The backup db don't get overwritten (but, you probably knew this), and the
checkin/checkout results int the same '...output media full...' message.
So, I've got the same question.
Kent
On Dec 20, 4:17pm, Judy Warren wrote:
> Subject: BACKUP DB question
> Folks,
>
> I'd like to setup a daily scheduled full backup of our ADSM server
> database; I'd planned to use 3590 tapes in a 3494 tape robot for the
> backups. Given the capacity and speed of the 3590 tapes and drives,
> I didn't see any reason to do incremental backups.
>
> But I also don't want to allocate an indefinite number of tapes to
> the DB backups; I figured that a tape rotation of 4-5 tapes would
> be adequate.
>
> The problem that I'm running into is that once a tape has been used
> for a DB backup, I don't seem to be able to find a way to make it
> re-usable for another DB backup some number of days later. The tape
> volume is marked "Private, DBbackup" according to a "query libvol".
> I've tried changing it to just "Private" or even to "Scratch" (with
> an "update libvol" command), but when I try to backup my database
> to that tape again, I'm told that:
>
> ANR4583E Database backup terminated - output media full
> and scratch media could not be mounted.
>
> How do folks out there manage regular automatic or scheduled DB backups?
> Do you just use some other kind of device (eg DEVCLASS=FILE) and manually
> erase some of the files when too many backups have accumulated, or is there
> some trick to getting a DB (tape?) backup rotation in place?
>
> Thanks,
> Judy
>
> --
> Judy Warren jsw AT tc.cornell DOT edu
> Cornell Theory Center (607) 254-8792
>-- End of excerpt from Judy Warren
--
Kent Johnson Internet: johnsk6 AT rpi DOT edu
Kent Johnson Internet: johnsk6 AT rpi DOT edu
Unix Systems Programmer (VCC 217) Phone: (518) 276-8175
Rensselaer Polytechnic Institute Fax: (518) 276-2809
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