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How to erase a tape on the first job of a serial backup from disk to tape


Hello everybody,

I have to chain some jobs of backup to tape. They save backup jobs on disk to a LTO.

I’d like to erase the tape on the first job. I don’t see how to do it.

So I have actually a job wich save all the job to disk in a single path.

Thnaks a lot for your help

Olivir GAUJAC

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Best answer by vNote42 18 May 2021, 20:10

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Userlevel 7
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I am not sure why you want to do this…

Tapes are not deleted, the table of contents at the beginning of the tape is deleted or overwritten only. This is done automatically when a tape is reused for a new Job after it is expired.

The deletion of the table of contents can be made in the “Tape Infrastucture” tab of the Veeam console.

 

Or do you want to write each of the chains to a new tape?

Then select in the definition of the Tape Media Pool in the tape “Media Set” the Option “ Create new media set for every backup session”

 

Thanks for your response

My english isn’t very good

I wil train to explain my problems

 

I have severall jobs

I’d like to erase the tape on the first job, then to append all the 2 to 9 job on the same tape.

But i’d like to ensure that the all copy can be done on the tape. For that i have to erase it before the copy.

These jobs are chained with VM to disk backups during the day and the nighjt.

The Tape is changed one time a day.

BR

Olivier GAUJAC

Userlevel 7
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Mhh… I don’t know a procedure which will do this automatically in Veeam….

But.. if you change the tape manually each day, you could invoke the “Erase tape” function after the change…
Depending on your tape drive (I assume it is no library) you could get the tape change event with a (powershell) script and after this invoke the erase action via the Veeam powershell api or put the tape into the FREE pool via this api…

When it is sure that all the content of the tape is expired in the Veeam database, then this should be unneccessary because then the tape is empty and will be written from scratch.

 

Userlevel 7
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Hi @olivier.gaujac ! When I understand your question correct, you want to get sure your backups fits to a tape? You do not need to delete a tape to do so, you just need to configure how long tape-jobs can/should append to a tape. This is done with Media Sets:

https://helpcenter.veeam.com/docs/backup/vsphere/tape_media_sets.html?ver=110

As long as you write to the same media set, backup will be appended to a tape. When you start a new media set, tape will be overwritten.

Userlevel 7
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You can play with retention on your backup copy job with your media set

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