Use different number of tape devices at GFS job

[Georg999]

Hello,

I have the following problem:
2 tape drives LTO8 and library are available
the Backup to Tape Job GFS is configured as follows:
Option: Drive usage - 2 tape drives
Daily backup: Every Day (incremental ~ 1TB)
Weekly backup: Saturday (full >40TB)
Monthly backup: First Saturday of the month (full >40TB)
Quarterly backup: disabled
Yearly backup: First Saturday of the year (full >40TB)

Of course, the job now also uses 2 tapes in parallel for the daily backup <1TB. With the other (W/M/Y) backups he should do this to increase performance.
Is there a way to configure the job to use only one drive (tape) for either daily backup or when the job stays under a tape capacity.

Another possibility occurred to me with job scripts before and after the job to change the job on Friday and Saturday so that the drive usage is then adjusted.
But here I lack the knowledge of configuring a job via Powershell.
I would be grateful for any hint to solve my problem.

[HannesK]

Hello,
and welcome to the forums.

As you already found out, there is no GUI setting. PowerShell, as suggested by you, should do the job. Something like this:

Code: Select all

$mediapool = Get-VBRTapeMediaPool -Name GFS
Set-VBRTapeGFSMediaPool -MediaPool $mediapool -EnableMultiStreaming:$true 

https://helpcenter.veeam.com/docs/backu ... apool.html
https://helpcenter.veeam.com/docs/backu ... apool.html

Best regards,
Hannes
PS: just curious... what's the problem with parallel streaming for incremental backups?

[Georg999]

Thanks for your help. I thought to myself that there is no other way, I'll try it out.

PS: just curious... what's the problem with parallel streaming for incremental backups?

the problem with parallel streaming for incremental backups is the need for twice the tapes, since the incremental backup easily fits on one tape (< 1TB)

[Georg999]

Maybe someone needs it
I try this after the Tape Backup:

Code: Select all

$date = Get-Date
if ($date.DayOfWeek -eq "Friday") {
    $mediapool = Get-VBRTapeMediaPool -Name GFS
    Set-VBRTapeGFSMediaPool -MediaPool $mediapool -EnableMultiStreaming:$true -NumberOfStreams:2 -SplitJobFilesBetweenDrives:$true
    }
        else{
        $mediapool = Get-VBRTapeMediaPool -Name GFS
        Set-VBRTapeGFSMediaPool -MediaPool $mediapool -EnableMultiStreaming:$false 
        }

[HannesK]

thanks for sharing with the community and happy that it worked

[xzvf]

Hello Georg,

Did it work?
I am in exactly the same situation, but also have lack of powershell skills.
Will try to rewrite this one though.
Nevertheless this is a lifesaver, thanks for sharing!

Maybe someone needs it
I try this after the Tape Backup:

Code: Select all

$date = Get-Date
if ($date.DayOfWeek -eq "Friday") {
    $mediapool = Get-VBRTapeMediaPool -Name GFS
    Set-VBRTapeGFSMediaPool -MediaPool $mediapool -EnableMultiStreaming:$true -NumberOfStreams:2 -SplitJobFilesBetweenDrives:$true
    }
        else{
        $mediapool = Get-VBRTapeMediaPool -Name GFS
        Set-VBRTapeGFSMediaPool -MediaPool $mediapool -EnableMultiStreaming:$false 
        }

[Georg999]

Update V13

Something has changed in version 13.

The "-EnableMultiStreaming" parameter no longer appears to exist for the "Set-VBRTapeGFSMediaPool" command. The corresponding menu option is also missing from the GUI.
The choice of whether or not to use multistreaming is determined by the "-NumberOfStreams" parameter; a value of 2 or higher enables multistreaming. In this case, you should also set the "-SplitJobFilesBetweenDrives" parameter to "$false" or "$true" as desired.

Note: The documentation for V13 (at https://helpcenter.veeam.com/docs/vbr/p ... tml?ver=13) still erroneously lists the "-EnableMultiStreaming" parameter, but it no longer works.

Here my new script

Code: Select all

$date = Get-Date
if ($date.DayOfWeek -eq "Saturday") {
        $mediapool = Get-VBRTapeMediaPool -Name GFS
        Set-VBRTapeGFSMediaPool -MediaPool $mediapool -NumberOfStreams:2 -SplitJobFilesBetweenDrives:$true
} else {
        $mediapool = Get-VBRTapeMediaPool -Name GFS
        Set-VBRTapeGFSMediaPool -MediaPool $mediapool -NumberOfStreams:1 -SplitJobFilesBetweenDrives:$false
}