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Troubleshooting › Backup and Restore Problems › Arcserve Backup Does Not Back up Files that were Moved or Renamed

Arcserve Backup Does Not Back up Files that were Moved or Renamed

Valid on Windows platforms.

Symptom

When performing file system backups, Arcserve Backup does not back up files that were moved or renamed on a node after the last backup completed. Arcserve Backup does not generate error or warning messages in the Activity Log.

Solution

This is expected behavior. The Client Agent for Windows lets you back up files only if they are modified after the last backup completed. The Client Agent for Windows cannot identify files that were moved or renamed as files that were modified.

To help prevent this behavior from occurring, you must install and license Arcserve Backup Agent for Open Files, and verify that the CA Universal Agent Service is running in your backup environment before you rename or move files on the node. The CA Universal Agent service allows Arcserve Backup to detect files and directories that were changed or moved on the agent node. If the Universal Agent Service was not running when the files were moved, renamed, or both, ensure you have installed and licensed Arcserve Backup Agent for Open Files, and submit a full backup of the node to help ensure that Arcserve Backup backs up all of the files.

When you move or rename a file or folder, the Archive bit for the object is not updated. As a result, Arcserve Backup does not back up the file or folder the next time an incremental backup job runs. To help ensure that the Universal Agent detects and backs up the moved and renamed files, the Universal Agent enumerates all fixed volumes that are present on the node at specific intervals. The Universal Agent then monitors each volume for moved or renamed files and folders. If a file or folder is detected, the archive bit for the object is updated.

You can enable and disable this function of CA Universal Agent Service. The function is enabled by default. To modify the default behavior, do the following:

  1. Open Windows Registry Editor.
  2. Browse to the following registry key. 
    HKEY_LOCAL_MACHINE\SOFTWARE\ComputerAssociates\CA ARCserve Backup\UniversalClientAgent\Parameters\VolChangeMgr
  3. Change the value that you require for VolChangeMgr.

    Default value--1 Enabled

    Optional value--0 Disabled

  4. Close Windows Registry Editor.
  5. Restart CA Universal Agent Service.

The default time interval for volume enumeration is one hour. To modify the default behavior, do the following:

  1. Open Windows Registry Editor.
  2. Browse to the following registry key. 
    HKEY_LOCAL_MACHINE\SOFTWARE\ComputerAssociates\CA ARCserve Backup\UniversalClientAgent\Parameters\RefreshVolEnum
  3. Specify the value that you require for ResfreshVolEnum.

    Default value--3600000 (1 hour in milliseconds)

    Note: One minute equals 60000 milliseconds.

  4. Close Windows Registry Editor.
  5. Restart CA Universal Agent Service.