Forever forward and synthesizing full to tape

Everything about backing up to tape

Re: Forever forward and synthesizing full to tape

Veeam Logoby Dave338 » Wed Feb 11, 2015 10:31 am

Well I opened this morning. (case 00748693)

I'm still understanding what this backup option makes.

I've just made a new test. Selecting one of my jobs, which has currently 10 restore points, and selecting virtual full on wednesday (only 1 wed. restore point currently)

Destination tape has all files copied, original vbk and all incrementals, except the wednesday one, that has been converted to a full backup. So 2 fulls, and rest of incrementals on tape, all 10 restore points to tape.

My goal was only to have the last restore point on tape, to make a weekly independent circuit (4-5 weeks), and 1 a month an independent monthly circuit (12 months), but I don't want original full nor incrementals on tape.

Regards.
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Re: Forever forward and synthesizing full to tape

Veeam Logoby v.Eremin » Wed Feb 11, 2015 12:02 pm

Currently, synthesized full backup functionality requires "process incremental" option enabled. As the result, you see incremental backups being copied.

This will be addressed in patch#2, though.

Thanks.
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Re: Forever forward and synthesizing full to tape

Veeam Logoby florian.meier » Tue Mar 10, 2015 3:48 pm

Eremin do you know, when approximately patch#2 arrives?
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Re: Forever forward and synthesizing full to tape

Veeam Logoby v.Eremin » Tue Mar 10, 2015 4:01 pm

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Re: Forever forward and synthesizing full to tape

Veeam Logoby florian.meier » Tue Mar 10, 2015 4:19 pm

Thank you!
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Re: Forever forward and synthesizing full to tape

Veeam Logoby florian.meier » Thu May 21, 2015 6:15 am

hi guys

we are using now p2 for v8. the syntetic tape backup is running but not as expected.
when we creating a new full tape backup from a forever incremental and do not cross the "process incremental backup files"
then veeam creates two full backups on tape and not only one.
first full is the full from incremental forever, second full is the syntetic virtualized full of the tape backup schedule.

why that?

regards
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Re: Forever forward and synthesizing full to tape

Veeam Logoby Shestakov » Thu May 21, 2015 10:05 am

Hello Florian,
Could you clarify when the job creates those Full backups? Did it copy the Full backup at first and then created another Full backups in few days? What`s your source backup job retention policy? Is it backup or backup copy job? Thanks!
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Re: Forever forward and synthesizing full to tape

Veeam Logoby Steen » Thu May 21, 2015 12:14 pm

florian.meier wrote:hi guys

we are using now p2 for v8. the syntetic tape backup is running but not as expected.
when we creating a new full tape backup from a forever incremental and do not cross the "process incremental backup files"
then veeam creates two full backups on tape and not only one.
first full is the full from incremental forever, second full is the syntetic virtualized full of the tape backup schedule.

why that?

regards


i can confirm that.
Regards Steen
Regards Steen
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Re: Forever forward and synthesizing full to tape

Veeam Logoby martynuk » Thu May 21, 2015 12:17 pm

We are seeing the same issue, and have a call open (case 00695194). It may be that Veeam sees that the existing VBK (from the forever incremental) is within the retention period for the media pool but isn't already on tape - so it copies it along with the virtual full. This isn't something we would want with a virtual full tape backup job, but I think may be how Veeam handles the traditional full backups to tape logic.
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Re: Forever forward and synthesizing full to tape

Veeam Logoby v.Eremin » Thu May 21, 2015 12:22 pm

Guys, do you see the said behaviour during the first cycle only? Or whenever time for creating virtual full backup comes, there are two full backups archived to tapes (virtual one and the oldest point from forward forever incremental chain)?
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Re: Forever forward and synthesizing full to tape

Veeam Logoby florian.meier » Thu May 21, 2015 12:24 pm

Guys, do you see the said behaviour during the first cycle only?

i dont know, have about 20tb of data which have go to tape. so i have to double my tapes first...

Or whenever time for creating virtual full backup comes, there are two full backups archived to tapes (virtual one and the oldest point from forward forever incremental chain)?

yes thats correct. it creates two vbk. the virtual one and also the oldest from forward forever incremental chain.
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Re: Forever forward and synthesizing full to tape

Veeam Logoby v.Eremin » Thu May 21, 2015 12:37 pm

i dont know, have about 20tb of data which have go to tape. so i have to double my tapes first...

I mean was it the first cycle of backup to tape job when two .vbks (with one of which being virtual full backup) were copied to tapes?
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Re: Forever forward and synthesizing full to tape

Veeam Logoby florian.meier » Thu May 21, 2015 12:39 pm

yes, was the first cycle! Cant speak for existing cycles because we migrated after p2 to veeam tape (because of the known problems in v8 without p2)
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Re: Forever forward and synthesizing full to tape

Veeam Logoby martynuk » Thu May 21, 2015 12:43 pm

First cycle here too. Don't know yet if similar behaviour will occur on subsequent cycles as I'm still testing.
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Re: Forever forward and synthesizing full to tape

Veeam Logoby v.Eremin » Thu May 21, 2015 12:52 pm

If it's initial cycle, then, everything looks expected. However, starting from that moment, only one virtual full backup will be created on tape.
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