Exchange backup failed

[trackstar]

Backup failed with the following. I guess I have to talk to the Exchange guys regarding the VSS stuff (usually the case in the past, but I don't recall seeing this exact error before)?

After three attempts, I try running the backup again but it hung for so long so I stop the job which puts it in the status of "stopping". I followed the KB and stop all the services and end the processes which cleared the "stopping" status. Good that the snapshot hasn't started.

First attempt:

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Failed to prepare guest for hot backup. Error: VSSControl: -2147023446 Backup job failed. Discovery phase failed. Cannot enumerate volumes that should be added to the snapshot set. Cannot enumerate volumes that contain components specified by the processed writer. Writer name: [Microsoft Exchange Replica Writer], class ID: [{76fe1ac4-15f7-4bcd-987e-8e1acb462fb7}]. instance ID: [{60c57631-9443-4e08-8f00-e0b349e34aa9}]. Cannot obtain a volume mount point for the volume that contains the specified file. Fi
Error: VSSControl: -2147023446 Backup job failed. Discovery phase failed. Cannot enumerate volumes that should be added to the snapshot set. Cannot enumerate volumes that contain components specified by the processed writer. Writer name: [Microsoft Exchange Replica Writer], class ID: [{76fe1ac4-15f7-4bcd-987e-8e1acb462fb7}]. instance ID: [{60c57631-9443-4e08-8f00-e0b349e34aa9}]. Cannot obtain a volume mount point for the volume that contains the specified file. File path: [E:\Program Files\Microsoft\Exc

second attempt:

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Failed to prepare guest for hot backup. Error: Cannot start service. Machine: [134.173.xxx.xxx]. Service: [VeeamVssSupport]. Cannot start service. Win32 error:The dependency service or group failed to start. Code: 1068
Error: Cannot start service. Machine: [134.173.xxx.xxx]. Service: [VeeamVssSupport]. Cannot start service. Win32 error:The dependency service or group failed to start. Code: 1068

third attempt:

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Failed to prepare guest for hot backup. Error: Cannot start service. Machine: [134.173.xxx.xxx]. Service: [VeeamVssSupport]. Cannot start service. Win32 error:The dependency service or group failed to start. Code: 1068
Error: Cannot start service. Machine: [134.173.xxx.xxx]. Service: [VeeamVssSupport]. Cannot start service. Win32 error:The dependency service or group failed to start. Code: 1068

[Shestakov]

Hello trackstar,
Please provide your support case number as required when posting a error-related question.
Thanks!