Symptoms
Avamar Backup of Exchange Server failed while wrapping up the session: avtar Error : Path "_00000000\:" not found in backup (errorcode 'not sure').
Cause
Backup is failing because of error in avtar:
#0 (debug enabled)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2016/07/18-21:07:21.52200 [avtar] ERROR PRIVILEGE SeSecurityPrivilege NOT HELD BY PROCESS
2016-07-18 16:07:21 avtar Warning : Current user () could not enable SE_SECURITY_NAME privilege. All ACLs cannot be backed up
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avtar Error : Path "_00000000\:" not found in backup (errorcode 'not sure').
"SeSecurityPrivilege" is missing for the "AvamarBackupUser" account.
Resolution
1. Logon to the Exchange server.2. Launch a command prompt as the Windows Administrator user3. Issue the following command:gpresult /USER AvamarBackupUser /V Make sure that the groups below are listed:- Backup files and directories- Manage auditing and Security logIf any of them is missing - proceed with the steps below:1. On the Exchange server, run secpol.msc 2. Expand "Computer Configuration"-->"Windows Settings"-->"Security Settings"-->"Local Policies"-->"User Rights assignment"3. Double click on policies "Back up files and directories" and "Manage auditing and security logs" respectively and explicitly add "AvamarBackupUser" using the "Add user or group" option.4. Run gpupdate /force5. Important: Re-run gpresults to confirm that missing rights are displayed this time; restart the avagent services and re-try a backup.
