The following topics provide information on troubleshooting virtual machine restore failures and virtual machine restore limitations.
Removal of pre-existing snapshots required before running virtual machine restore
A virtual machine restore cannot be completed when a pre-existing VMware snapshot is present on the virtual machine. An error similar to the following appears:
Session 'session ID' is unsuccessful: There are 1 pre-existing snapshot present on this VM. Recover is not possible. Remove snapshot(s) and try again.
Verify that no pre-existing snapshots exist on the virtual machine, and then retry the restore operation from the
System Jobs window of the
PowerProtect Data Manager UI.
Some operations fail for vTPM virtual machine in a DRS-enabled cluster with dedicated vCenter user account
The following operations fail for virtual Machines with a Virtual Trusted Platform Module (vTPM) when the virtual machines are in a DRS-enabled cluster and using a dedicated vCenter user account:
The vTPM virtual machines cannot be powered on after a restore to the original virtual machine or restore to a new virtual machine , with the error
Permission to perform this operation was denied displaying.
For an instant access restore, migration is unsuccessful, with the error
Unable to complete vMotion task Task:task-3785. Permission to perform this operation was denied displaying.
Virtual machine restores fail when vProxyd or vrecoverd disruption occurs
A virtual machine restore hangs and VPOD will not be able to reconnect to the restore session when the following scenarios occur:
A disruption to the
vrecoverd process on any external
VM Direct Engine.
A disruption to the
vProxyd process during a
Restore to Original Folder and Overwrite Original Files or
Create and Restore to New VM operation that uses Transparent Snapshot Data Mover (TSDM) as the protection mechanism.
After several retry attempts, VPOD marks the restore session as "Failed" and releases theVM Direct Engine associated with the restore.
If this failure occurs during a
Create and Restore to New VM, you can delete the new virtual machine and restart the restore operation.
If this failure occurs during a
Restore to Original Folder and Overwrite Original Files, you must remove the
VM Direct Engine lock on the virtual machine from the vCenter server, and then retry the restore operation. In the
vSphere Client, the
VM Direct Engine lock appears as a custom attribute with the name
Dell VM Direct Engine Session.
NOTE If this attribute contains any value after a
vProxyd process failure, backup and restore operations on this virtual machine cannot be performed. Clean up of this attribute and then running a successful restore operation is a requirement in order to avoid any potential data loss or corruption of the virtual machine, otherwise subsequent backups might also contain corrupted data.
DD NFS share not removed after instant access restore
The NFS share might not be removed after a successful virtual machine instant access restore. When this occurs, the restore hangs and the following NFS clients appear enabled in the
DD system.
If you encounter this issue, you can wait 24 hours for
PowerProtect Data Manager to clean up the DD NFS shares, or you can stop the restore and clean up the DD NFS clients manually by performing the following steps:
Restart the VMDM service by typing
/usr/local/brs/lib/vmdm/bin/vmdm restart.
Clean up DD NFS clients by typing
nfs del <Path> <Client>.
In the vSphere Client's
Configuration tab, manually unmount the
EMC-vProxy-vm-qa-xxxxx DDNFS datastore that is mounted on the ESXi host.
IP address change required after successful image-level restore to a new virtual machine
After performing a successful image-level restore to a new virtual machine, ensure that you change the IP address immediately in order to avoid IP conflicts with the original virtual machine. If you do not change the IP to a unique value, subsequent data protection operations might fail on the restored virtual machine, even if that virtual machine's network interfaces are disconnected.
Virtual machine protection copy does not display under available copies
If a virtual machine protection copy does not display under the available copies in
PowerProtect Data Manager, verify the following:
Ensure that protection of the virtual machine completed successfully.
Check that the desired copy has not expired according to the
PowerProtect Data Manager protection policy.
Virtual machine restore fails with name resolution error
A virtual machine restore might fail with the following error due to network issues between
protection storage and either
PowerProtect Data Manager or the vCenter or ESXi server:
com.emc.brs.vmdm.http.HttpsConnector - null: Temporary failure in name resolution
java.net.UnknownHostException : null: Temporary failure in name resolution
Ensure that you have proper name resolution between
protection storage and either
PowerProtect Data Manager or the vCenter or ESXi server.
Virtual machine restore fails when the previous restore of this virtual machine is in progress or did not complete
A virtual machine restore fails with the following error if the previous restore operation for the same virtual machine is still in progress or did not complete successfully:
Error : There is another running restore operation that conflicts with this request.
If the previous restore operation for this virtual machine is still in progress, monitor the progress in
PowerProtect Data Manager until the restore completes. If the virtual machine restore is complete but the task stops responding, then you must manually cancel the restore in
PowerProtect Data Manager by restarting the VMDM service. You can restart the VMDM service by typing
/usr/local/brs/lib/vmdm/bin/vmdm restart.
Virtual machine restore fails with error due to
VM Direct corruption
A virtual machine restore might fail with the following error due to corruption of the
VM Direct Engine that is running in
PowerProtect Data Manager:
Ensure that the vproxyd service is running in
PowerProtect Data Manager by typing the following command.
ps xa | grep vproxy
Ensure that the vproxy rpm is installed as expected in
PowerProtect Data Manager by typing the following command.
rpm -qa | grep vProxy
When logged in as the root user, restart the vproxyd service on
PowerProtect Data Manager by typing the following command.
systemctl restart vproxyd
Virtual machine restore fails with error "User UserEARA does not have proper privileges"
A virtual machine restore fails with the error "User UserEARA does not have proper privileges" when the user does not have adequate privileges to perform the restore operation.
Ensure that the
PowerProtect Data Manager user performing the restore belongs to System Tenant and has the
Administrator or
Restore Administrator role.
Filtering virtual machine copies by File Indexing column is not available
When you select a virtual machine for restore in the
PowerProtect Data Manager UI and then click
View Copies to select from one of the available copies, using the filter in the
File Indexing column does not return any results. Use the filters from other columns to locate the virtual machine asset copies that you want to restore.
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