Discussions specific to tape backups
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stabi-lso
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VBK to tape

Post by stabi-lso » Jul 12, 2016 8:32 am

We want to copy a .vbk file to a tape (via the ‘File to tape’ job). Because the size of the .vbk is 3,5 TB it will take some time to copy it to tape.
In the meantime it can be possible that a new merge was completed and that the .vbk has been changed. Will that result in a corrupt file on tape?

v.eremin
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Re: VBK to tape

Post by v.eremin » Jul 12, 2016 10:42 am

What mode does a source backup job use? I suppose forward incremental or reversed incremental one? In this case, the executed backup job will stop a tape one and the data already written to tape will be in inconsistent state.

Therefore, it stands to reason to make sure that jobs do not overlap or create a pre-job script that will be put the backup job on hold until the tape job is finished.

Thanks.

stabi-lso
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Re: VBK to tape

Post by stabi-lso » Jul 12, 2016 10:47 am

It's a backup created in Endpoint Backup.

The tape job wasn't stopped.

v.eremin
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Re: VBK to tape

Post by v.eremin » Jul 12, 2016 11:43 am

"Use Microsoft VSS" option is enabled in tape job settings, isn't it? In this case, the running tape job wouldn't be interrupted and the whole scenario might work as expected.

However, if I were you, I'd still avoid jobs overlap in order to be on the safe side.

Thanks.

stabi-lso
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Re: VBK to tape

Post by stabi-lso » Jul 12, 2016 11:47 am

Yes, "Use Microsoft VSS" is enabled.

Thanks for your answers!

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