How To Export the NetWorker Media Database Using nsrmmdbasm

Summary: This article describes how to export the media database from any OS for uploading to NetWorker Support.

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Instructions

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.
 

NOTE: The steps outlined in this article create a copy of the mm in XDR format. The commands as shown are safe to use; however, this tool is not intended for common Administrator use. Do not use it unless directed to do so by Dell NetWorker Support. NetWorker support may request a copy of the mm in XDR format while troubleshooting certain issues. Dell employees and partners using this article must be signed in to the Dell support site to see the instructions for importing the mm.

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 mm in the environment.

Produse afectate

NetWorker, NetWorker Series

Produse

NetWorker Family, NetWorker Series
Proprietăți articol
Article Number: 000032989
Article Type: How To
Ultima modificare: 21 ian. 2026
Version:  6
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