PowerProtect Data Manager 19.10 File System User Guide

BMR and SSR operations fail to run and a start_subscriber error appears in the agent-service log

A BMR or SSR operation might fail to display the start or completion of a job, and the DPSAPPS\AgetService log shows an error similar to msg_server.py-create_subscriber()Line 617 Exception occurred during start_subscriber Permission denied occurred.

This is caused when another service uses port 7010 or 7011.

Reconfigure any service that uses port 7010 or 7011 to use a different port.

Backing up BMR data fails with a ddfssv error

Backing up BMR data can fail with the error ddfssv FATAL <12128: Attempt to create a backup with no data is unsuccesful.

The Event Viewer system log might also contain an error similar to the following:

This is a known Microsoft issue that affects all backup products.

Retry the backup procedure after leaving more free space on the drive or when the drive is not as busy.

Network connectivity issues after a BMR

A BMR can fail to recover network configuration information such as IP address, subnet mask, gateway, and DNS. If the recovered host experiences network connectivity issues, confirm its network configuration and make any necessary changes.

SSRs fail to restore a VSS writer

If an SSR fails to recover a VSS writer, you might see an error similar to the following:

ddfsrc Error <0000>: Unable to select W component from V for restore: The specified object was not found. (VSS error 0x80042308)

This occurs when writer .xml files are missing from the C:\Windows\Vss\Writers\System directory.

Restart the host, run the command vssadmin list writers to confirm the VSS writer status, and then retry the SSR.

BMR recovers critical volumes, but a disk is marked as offline

This can happen with disks that host Microsoft SQL Server instances.

Manually bring the disk online, and then restart the host.

SSRs show a RegSetValueEx() error and fail to recover files after a restart.

An SSR might show Error <10958>: RegSetValueEx() for replace files, but complete successfully. After the host is restarted, certain files have not been recovered.

A file that is in use cannot be replaced by its recovered version. If you restart a host to have a file replaced but the file is not replaced, it might be because antivirus software is preventing access to the pendingfilerenameoperations registry key.

Perform one of the following tasks as a workaround.

• Use file exclusion:
  1. Retry the SSR, but do not restart the host.
  2. Exclude ddfssv.exe, ddfsrc.exe, ddfscon.exe, and restserver.exe from the antivirus software.
  3. Restart the host.
  4. Optionally, remove the files from the exclusion list.
• Temporarily disable the antivirus software:
  1. Retry the SSR, but do not restart the host.
  2. Disconnect the host from the network.
  3. Disable the antivirus software.
  4. Restart the host.
  5. Enable the antivirus software.
  6. Connect the host to the network.

Temporary files are not deleted after a failed or canceled recovery operation

After a failed or canceled recovery operation, you might see files continuing to exist in C:\dbapps_temp_dir. Replace C: with the drive to which Windows was installed.

These files cannot be manually deleted. To remove the files, contact Customer Support.