"Event 27" during backup job.

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"Event 27" during backup job.

Veeam Logoby kirsa » Fri Aug 19, 2016 8:37 am

Good afternoon.
On the server 2008R2 SP1 installed VEB 1.5.0.306.
When backup job system disk C: is run "Event 27 Source: Volsnap" is logged in the system log (in the panel VEB no errors):
Code: Select all
"The shadow copies of volume \\?\Volume{8a495a49-45ca-11e6-9e82-1866da5ab7eb} were aborted during detection because a critical control file could not be opened."

But the command "VSSadmin List volumes" of this volume in the system is not detected.
Code: Select all
C:\
\\?\Volume {b3eda294-01e4-4b62-b05b-47a4ab359447}\?
D:\
\\?\Volume {5aa98ec1-3634-47c9-88e7-352b4a6397bc}\?
E:\
\\?\Volume {acfa56a0-e2da-4e04-92e5-9501e704be54}\?
F:\
\\?\Volume {1f2a3bcf-a410-4f7f-8c18-82e657aba465}\?
G:\
\\?\Volume {fb511f02-b063-4b6e-a6e1-82911b85628c}\?
While in the registry it is referenced in sections
[HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices]
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\VSS\Diag\VolSnap]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\VSS\Diag\VolSnap]

Does this error affects the establishment VEB backups?
Thanks, sorry for my english.
kirsa
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Re: "Event 27" during backup job.

Veeam Logoby Dima P. » Sat Aug 20, 2016 1:21 pm

Hi kirsa,

Might be related some third party vss writer issues. It’s better to check with our support team regarding event log errors to be sure they are not affecting your backup. Kindly, open a support case via Control Panel and share the case ID in this thread. Thanks.
Dima P.
Veeam Software
 
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Full Name: Dmitry Popov

Re: "Event 27" during backup job.

Veeam Logoby kirsa » Mon Aug 22, 2016 8:24 am

Thank you, Dima, for your reply and edit my post.
I have created a Support Case #01885441.
kirsa
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Re: "Event 27" during backup job.

Veeam Logoby kirsa » Tue Aug 23, 2016 12:43 pm 1 person likes this post

The situation was resolved starting
Code: Select all
Mountvol /R

From registry branches disappearing records about missing volume.
Code: Select all
[HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices]

VEB backup job was successful, without "Error 27".
Thanks Sergey Kochetkov (Veeam Support) again for the advice.
The question is closed.
kirsa
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Posts: 3
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