The NetWorker server media database (mm) stores information about all backup and clone operations. You can export the mm into an External Data Representation (XDR) file. This file may be requested by NetWorker support when troubleshooting an issue.
The mm is also collected during an NSRGET collect:
NetWorker: How to Use the NSRGet NetWorker Data Collection Tool
nsrmmdbasm may be invoked to backup the media database to an encoded file, or recover from that file later to a running NetWorker server.
This tool is not intended for common Administrator use. Do not use it unless directed to do so by Dell NetWorker Support.
Backing up the media database (Linux):
sudo nsrmmdbasm -s /nsr/mm/mmvolrel > /tmp/mm_`date -I`.xdr
Example:
nwserver:~ # nsrmmdbasm -s /nsr/mm/mmvolrel/ > /tmp/mm_`date -I`.xdr
nwserver:~ # ls -lhd /tmp/mm_2024-05-21.xdr
-rw------- 1 root root 250K May 21 16:54 /tmp/mm_2024-05-21.xdr
NOTE: If the .xdr file shows a small size, for example < 10 KB, it may not have exported correctly. The size of the .xdr varies depending on the size of the active mm in the environment.
Backing up the media database (Windows):
Open an Administrator command/PowerShell prompt
nsrmmdbasm -s "{absolute path to mmvolrel}" > "{output location path}\mm.xdr"
The default NetWorker install path mmvolrel can be found under "C:\Program Files\EMC NetWorker\nsr\mm\mmvolrel". The mm.xdr can be redirected to a location of your choosing.
Example:
C:\Windows\system32>nsrmmdbasm -s "C:\Program Files\EMC NetWorker\nsr\mm\mmvolrel" > C:\temp\mm_%DATE:~10,4%%DATE:~4,2%%DATE:~7,2%.xdr
C:\Windows\system32>dir C:\temp | findstr mm
05/21/2024 05:12 PM 198,836 mm_20240521.xdr
NOTE: If the .xdr file shows a small size, for example < 10 KB, it may not have exported correctly. The size of the .xdr varies depending on the size of the actual mm in the environment.