Introducing CA ARCserve Backup Agents and Options › Using Agents › Agent for Virtual Machines › Installing and Configuring the Agent › Post Installation Tasks › VMware vSphere Integration Post Installation Tasks › Allow the Mount Points to Remain on the Backup Proxy System

Allow the Mount Points to Remain on the Backup Proxy System

By default, CA ARCserve Backup deletes the mount point directory on the backup proxy system after a successful backup of the VMs is complete. If the backup fails and the mount point is not deleted from the backup proxy system, CA ARCserve Backup deletes the mount point directory the next time the backup job executes. This approach helps ensure that the agent minimizes the amount disk space required to execute VM backups.

Optionally, you can allow the mount point to remain on the backup proxy system if all of the conditions that follow apply in your VM backup environment:

• You are backing up data using deduplication.
• The deduplication devices function as data stores that reside on the backup proxy system.
• Freeing disk space on the backup proxy system is not a requirement.

This approach lets you decrease the amount of time required to recover VM data.

When mount points remain on the backup proxy system, CA ARCserve Backup names the mount points using the following conventions:

• Successful Backups--CA ARCserve Backup renames the mount point directory to the following:

  <vmname>_J<JobID>_S<SessionID>_date_time
  

  Note: CA ARCserve Backup renames the mount point directory when the backup completes.

• Unsuccessful and Incomplete Backups--The next time a backup job executes for the VM with the same backup proxy system, CA ARCserve Backup renames the mount point directory to the following:

  <vmname>_J<JobID>_S<SessionID>_err_date_time
  

To allow the mount points to remain on the backup proxy system

1. From the Windows Start menu, click Run.

   The Run dialog opens.

2. In the Open field, type regedit.

   Windows Registry Editor opens.

3. Browse to the key that follows:

   HKEY_LOCAL_MACHINE\SOFTWARE\ComputerAssociates\CA ARCserve Backup\ClientAgent\Parameters
   

   The values for the key appear.

4. From the Edit menu, select New and click DWORD Value.

   Name the DWORD retainVCBMountDir.

   Right-click retainVCBMountDir and click Modify on the pop-up menu.

   The Edit DWORD Value dialog opens.

5. In the Value data field, type 1 and click OK.

   The key is created.

6. Close Registry Editor.