How to fix a VSS: Backup job failed Exchange

[FSW_Freital]

Hello,

we are using Kemp Balance Loader and 2 Exchange Mailserver. Our backup job type is Category. The mailserver1 has no problem at all but mailserver2 always comes with following error message:

Warning : VSS: Backup job failed. Cannot notify writers about the 'BACKUP FINISH' event. A VSS critical writer has failed. Writer name: [Microsoft Exchange Writer]. Class ID: [{76fe1ac4-15f7-4bcd-987e-8e1acb462fb7}]. Instance ID: [{8e9b0469-ef84-4426-86be-d3cc9a8facda}]. Writer's state: [VSS_WS_FAILED_AT_BACKUP_COMPLETE]. Error code: [0x800423f3]. (0:00:01)

VSS was check on server successfully. No problem with VSS. Server was restarted several times as well. Our VEEAM Version is 13.0.2.29.

How can we prevent that issue? What is recommended?

Thank you.

[david.domask]

Hi FSW_Freital,

As this is a technical issue, you must start with a Support Case as is noted when creating topics.

We cannot meaningfully troubleshoot over the forums, and while I understand you're hoping that others may already have a solution, typically such issues are environmental in nature and the debug logs (and typically event logs) need to be investigated for a proper conclusion.

So open a Support case, and please share the case number once created, thanks!