MediaCheck fails with "No such entry" and "Data: mmf" or
Because the CONDEV file does not ever add the two 'mmf' and 'muf' text lines during tape library add or attach functions on the CmdSrv (or MM) node that causes both Connectivity tests and backups to tape library pool(s) to fail
NovaBACKUP DataCenter
This problem occurs if the backup server and the MM (Media Management) server are located on different systems, in versions of DataCenter prior to 9.2. But that statement is not true as starting with version 9.2, NovaStor DataCenter only allows the CommandServer to act as the media management server (you can read more about that in this DC 9 User Guide web page here). If a tape library device is configured and the CommandServer 9.2 or newer is not registered as the media management server, it must be migrated (however the "Migrate Media Management" function, which is a function in DC 9.2 and newer versions, does not make this other change in the CONDEV for you). The stated error is also a current bug in DataCenter 9.4.x and 9.5.x, but the outcome differs slightly in the error message and in the function that leads to the need to perform the work around for the stated problem. The bug description is: Bug - DC 9.4.x (and including up to DC 9.5.2 US) - Because the CONDEV file does not ever add the two 'mmf' and 'muf' text lines during tape library add or attach functions on the CmdSrv (or MM) node that causes both Connectivity tests and backups to tape library pool(s) to fail. To work around this issue please read and follow the simple instuctions in this KB article to edit a file on the Command Server node and the backup server enabled node as well to correct that above stated 9.4.x and 9.5.x bug issue:
On MediaCheck, an error popup occurs showing:
No such entry
Data: mmf
The solution for the problem is to add the lines
&mmf: mm\mmf.exe,mm
&muf: mm\muf.exe,mm
to the backup server Hiback\CONDEV file. For Windows the default location for that file would be this: '%ProgramFiles%\Program Files\NovaStor\DataCenter\Hiback\CONDEV'. In Linux the default location for that file would be this: '/opt/NovaStor/DataCenter/Hiback/CONDEV'.
Restart the backup server service NBK DC Remote Command Executor to make the CONDEV changes effective.
Repeat the MediaCheck (and the Connectivity test on the backup job in question, and then test backup to make sure that works as well after that change). For DataCenter 9.4.x and 9.5.x make sure that the CONDEV file is edited with the above two lines of text on both the Command Server node and on the backup server node as well!