Dell NetWorker 19.9 Administration Guide

Using the scanner program to recover data

You can use the scanner command to recover data from a volume by save set ID (SSID) to the host that starts the program. Ensure that the operating system of the NetWorker host that runs the scanner command is the same operating system as the source client.

1. Optionally, use the nsrlogin command to authenticate a user and generate a token for the
   Using nsrlogin for authentication and authorization provides more information.
2. Ensure the value in the Idle device timeout attribute of the device that contains the volume is 0. Unmounting volumes automatically (idle device timeout) provides more information.
3. Use the mminfo program to query the media database for save set information.

   For example:

   mminfo -avq ssid=ssid -r volume,client,name,ssid,mediafile,mediarec

   where ssid is the save set ID associated with the data.

4. Use the save set information from the mminfo command to run the scanner program:

   • To recover all files in a save set on Windows, type:

     scanner -v -Sssid -f mediafile -r mediarec device | path\uasm -rv
     

     where:

     • ssid specifies the save set ID value that you obtained from the mminfo output.
     • mediafile specifies the starting file number of the save set that you obtained from the mminfo output.
     • mediarec specifies the starting file record number of the save set that you obtained from the mminfo output.
     • device is the name of the device that contains the volume. is the name of the device the volume is loaded in, for example /dev/rmt0.1 or \\.\Tape0
     • path is the path on the NetWorker host that contains the uasm binary.

       For example, on Windows:

       C:\Program Files\EMC NetWorker\nsr\bin