Disk Event ID 157 and 58 in Hyper-V VMs

The place to discuss any technical issues or suggestions in relation to BackupAssist v9.

Disk Event ID 157 and 58 in Hyper-V VMs

by Billm » Thu May 19, 2016 7:40 am

The Backups appear to be working, but I am seeing the following event log warnings in the Virtual Machines.
Event ID 157: Disk 1 has been surprise removed.
The Disk number varies depending on the number of actual disks.
Additionally on one of the VMs I get
Event ID 58: The disk signature of disk 1 is equal to the disk signature f disk 0.
During normal operation there is no disk 1. My google searches indicate it is a product of VSS.

OS is Server 2012 R2 Datacenter with VMs running 2012 R2 Standard.
Posts: 1
Joined: Sat Apr 16, 2016 12:59 pm

Re: Disk Event ID 157 and 58 in Hyper-V VMs

by Stuart » Fri May 20, 2016 12:19 pm

Hi Bill,

It's Stuart here from the BackupAssist team.

These events have been mentioned on many Microsoft forums and blogs which all indicate that they can be ignored as long as there is no further problems being logged around the events.


Do you have any issues with the backup itself or are they running as expected?
Stuart Edwards
BackupAssist Support

*Have you tried restoring from your backups lately?*
Cortex I.T.
Posts: 998
Joined: Tue Sep 02, 2008 2:25 pm

Return to Technical Support v9

Who is online

Users browsing this forum: No registered users and 0 guests