Hello,
We use a GMSA account to backup our domain controllers and SQL server application aware, it only seems to work when the DCs and SQL server are allowed to retrieve the GMSA password.
If the DCs and SQL are not in the group that is allowed to retrieve the password, the backup job fails with:
7/1/2025 8:46:38 AM :: Unable to subscribe to guest processing components: Failed to call RPC function 'Vss.DetectOracleInstallation': Error code: 0x80004005. Failed to invoke func [DetectOracleInstallation]: Unspecified error. Failed to detect Oracle installation. Failed to create a process token for MSA account: %gMSAUsername$%, domain: %Domain%. Win32 error:The user name or password is incorrect. Code: 1326.. Failed to call RPC function 'Vss.DetectOracleInstallation': Error code: 0x80004005. Failed to invoke func [DetectOracleInstallation]: Unspecified error. Failed to detect Oracle installation. Failed to create a process token for MSA account: %gMSAUsername$%, domain: %Domain%. Win32 error:The user name or password is incorrect. Code: 1326.
Even though this article says that it should work, with only the guest processing proxy in the group?
https://community.veeam.com/blogs-and-p ... do-it-8723
We use a GMSA account to backup our domain controllers and SQL server application aware, it only seems to work when the DCs and SQL server are allowed to retrieve the GMSA password.
If the DCs and SQL are not in the group that is allowed to retrieve the password, the backup job fails with:
7/1/2025 8:46:38 AM :: Unable to subscribe to guest processing components: Failed to call RPC function 'Vss.DetectOracleInstallation': Error code: 0x80004005. Failed to invoke func [DetectOracleInstallation]: Unspecified error. Failed to detect Oracle installation. Failed to create a process token for MSA account: %gMSAUsername$%, domain: %Domain%. Win32 error:The user name or password is incorrect. Code: 1326.. Failed to call RPC function 'Vss.DetectOracleInstallation': Error code: 0x80004005. Failed to invoke func [DetectOracleInstallation]: Unspecified error. Failed to detect Oracle installation. Failed to create a process token for MSA account: %gMSAUsername$%, domain: %Domain%. Win32 error:The user name or password is incorrect. Code: 1326.
Even though this article says that it should work, with only the guest processing proxy in the group?
https://community.veeam.com/blogs-and-p ... do-it-8723
Statistics: Posted by EviLin — Jul 01, 2025 6:56 am






