Active Directory (AD) Application Granular Recovery Technology (APP GRT) backup of a Domain Controller virtual machine fails intermittently with error “-1090 This instance cannot be used because it encountered a fatal error”


Agent for VMware Virtual Infrastructure (AVVI) based backup of a Domain Controller (DC) virtual machine with Active Directory (AD) Application GRT enabled, fails intermittently with error below.

Error Message

Error in Job Log:

Access Denied. Cannot backup directory \zzzVirtApp000zzz and its subdirectories.

Error in Debug Log:

[6400] 09/03/10 12:36:45 [fsys\adgran]        -     DSProv:Exception (-1090) opening [C:\Program Files\Symantec\Backup Exec\Data\VM_Name-03-09-2010-12-32\IMG000000\ntds.dit] at B:441
[6400] 09/03/10 12:36:45 [fsys\jet]           - JET_ERR DbTable::Open -> -1090(0xfffffbbe) = -1090 This instance cannot be used because it encountered a fatal error.


A hotfix is now available for this issue in the current version(s) of the product(s) mentioned in this article. Refer to the Hotfix link under Related Articles at the end of this article to obtain the hotfix needed to resolve the issue.

Backup Exec 2012 Rev 1798 Hotfix 199866 -

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