Check if the last backup job was a synthetic full backup

[DG!]

Hallo,
I need to check if the last run of a job was a synthetic full backup. With

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$job = Get-VBRJob -Name "MyJob"
$session = $job.FindLastSession()

I get the last job session. But it is possible to get the information if this session was a synthetic full backup?

Thanks.

[veremin]

In the way I see it, it’s not possible at the moment .

Even though, you can understand whether the last session was an active full backup by running special command, you can’t get similar information regarding synthetic full backup, probably, due to the fact that it generally has two steps:

1. Creating a normal incremental.
2. Merging existing .vib files to one .vbk-files.

And these steps from PS perspective are considered as onr incremental backup session.

Anyway, if you're willing to understand whether the last session was an active full backup you can run the following script:

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Asnp VeeamPSSnapin
$Job = Get-VBRJob -name "Name of your job"
$Session = $Job.GetLastSession()
$Session.IsFullMode

Hope this helps.
Thanks.

[tsightler]

You can always get creative and parse the session log to determine if the last session included the synthetic, perhaps something like:

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asnp "VeeamPSSnapin" -ErrorAction SilentlyContinue
$job = Get-VBRJob -Name "Core Servers"
if ($job.GetLastSession().Logger.GetLog().UpdatedRecords.Title | Select-String "Transform") {
      write-host "Session Included Synthetic Full"
}

The above grabs the logs of the session and looks for a line with the word "Transform" in it. Sorry, at the moment I couldn't remember the exact wording used in the logs to denote a synthetic so you might need to search for a different keyword, but this should allow you to determine if the synthetic was part of the session in question.

[veremin]

Oh, brilliant solution, Tom.

Just to update it with the correct wording:

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Asnp VeeamPSSnapin
$job = Get-VBRJob -Name "Core Servers"
if ($job.FindLastSession().Logger.GetLog().UpdatedRecords.Title | Select-String "Synthetic") {write-host "Session Included Synthetic Full”} 

Hope this helps.
Thanks.

[tsightler]

Thanks Vladimir, I couldn't remember the exact wording. I think it actually might even change between "Synthetic" and "Transform" based on whether the "Transform incremental into rollbacks" option is selected.

[DG!]

Hi,
thanks for the help. The idea is good, but the log output of the synthetic full backup from the weekend is:

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Job finished at 13.04.2013 21:52:57
Primary bottleneck: Source
Load: Source 96% > Proxy 16% > Network 6% > Target 7%
Transformation completed successfully
All VMs have been processed
Processing 'VM1'
Preparing next VM for processing
Processing 'VM2'
.....
Preparing next VM for processing
Changed block tracking is enabled
VM size: 669,0 GB
Building VM list
Job started at 13.04.2013 01:00:12

There is no information about the synthetic part. Can I increase the log level to get the information?

[veremin]

Actually, there is a line regarding synthetic full in the log-snippet provided by you. The following one:

Transformation completed successfully

This means that previous incrementals have been transformed successfully into rollbacks during synthetic full run. This option can only be selected as a part of synthetic full backup.

So, you can slightly modify the aforesaid script:

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Asnp VeeamPSSnapin
$job = Get-VBRJob -Name "Core Servers"
if ($job.FindLastSession().Logger.GetLog().UpdatedRecords.Title | Select-String "Synthetic") {write-host "Session Included Synthetic Full”}
if ($job.FindLastSession().Logger.GetLog().UpdatedRecords.Title | Select-String "Transformation") {write-host "Session Included Synthetic Full. Previous restore points have been successfully transformed into rollbacks.”}

Hope this helps.
Thanks.

[DG!]

Thanks, works great.

[xadamz23]

Using powershell can I get the days that synthetic fulls are created on? For every backup job so that the output lists the job name and the day(s) that syn fulls are created?

Running Veeam B&R 7 with patch 4.

Thanks

[veremin]

You should query backup sessions, and try to find the lines that indicate synthetic full backup creation. Modify the script provided by Tom, so that, not only the last backup session, but all backup sessions get checked. Thanks.

[xadamz23]

You should query backup sessions, and try to find the lines that indicate synthetic full backup creation. Modify the script provided by Tom, so that, not only the last backup session, but all backup sessions get checked. Thanks.

Right I understand that. But what I want to do is query the job options. Is it possible to query the job options to get the days syn fulls are created on? Say for example I have Sunday and Wednesday "checked" for syn fulls in the job options. Can I use powershell to query that job's options to find the days I have it configured to do syn fulls?

[veremin]

Then, the following script should help:

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Get-VBRJob -name "Name of your backup Job" | select name, {$_.options.BackupTargetOptions.TransformToSyntethicDays}

Thanks.