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mzced
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Coherent backup with reverse incremental to tape

Post by mzced » Jun 17, 2016 2:42 pm

Good evening everyone, I have a W2k12 r2 servers updated to 'latest patch installed veeam 9.0 9.0 backup & replication to patch-final
Every night run:
-job configuration backup
-job reverse incremental of a host VMware ESX 5.5 build 2403361
In the morning, at 9.00 am backing up a set of tapes 2 and the completion of the first tape sends a warning email for the ribbon is changed by the eject it.

The question is: If I forget to replace the tape, from 1 to 2, of the same set, and I insert the next day but before 9.00 What happens to integrity of the backup with the aim of an eventual recovery?
He can with that set of tapes made in several days but with "half" otherwise reverse incremental hard disk to have a system with a complete and coherent picture of the system?

Shestakov
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Re: Coherent backup with reverse incremental to tape

Post by Shestakov » Jun 17, 2016 4:43 pm 1 person likes this post

Hello!
Having backup job with reverse incremental method, backup to tape job writes only full backups to tape.
If size of backup file is bigger than tape, it will be written to 2 tapes and still be fully restorable.
In a case file is not fully written on tapes, restore will not be feasible.
Does it answer your question?

mzced
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Re: Coherent backup with reverse incremental to tape

Post by mzced » Jun 20, 2016 8:14 am

yes, is good :(
I do wrong think, this backup over tape is NOT good :(

Shestakov
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Re: Coherent backup with reverse incremental to tape

Post by Shestakov » Jun 20, 2016 10:10 am

You can specify different media set option to change that logic.

mzced
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Re: Coherent backup with reverse incremental to tape

Post by mzced » Jun 20, 2016 11:23 am

yes, i already do that.
i have "Create new media set for every backup session", in this means i reuse only the same set of tape.

Thanks for all

Shestakov
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Re: Coherent backup with reverse incremental to tape

Post by Shestakov » Jun 20, 2016 11:31 am 1 person likes this post

Yes, in this case every backup run will start from the new tape. If size of backup file is not bigger than tape capacity, every backup will reside on it`s own tape.
You may also set protection period to avoid overwriting for a desired period.
Thanks!

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