Forum Discussion

Arun_K's avatar
Arun_K
Level 6
13 years ago

difference


Media Contents Report
The Media Contents report shows the contents of a volume as read directly from the media header and backup headers. This report lists the backup IDs (not each individual file) that are on a single volume. If a tape has to be mounted, there will be a longer delay before the report appears. 
# cd /usr/openv/netbackup/bin/admincmd
# ./bpmedialist -U -mcontents [-m <media_id>]

Images on Media Report
The Images on Media report lists the contents of the media as recorded in the NetBackup image catalog. You can generate this report for any type of media (including disk) and filter it according to client, media ID, or path. 
# cd /usr/openv/netbackup/bin/admincmd
# ./bpimmedia -U [-client <client_name>] [-mediaid <media_id>]

 

What is the difference between these two commands?Both are fetching from NBU catalog(emm)

7.1.x and Earlier
Backup and Recovery
NetBackup
  • mph999's avatar
    mph999
    13 years ago
    The media contentes reads the info directly from the media header and the backup header. Where do you the think the media /backup headers are. The clue MEDIA header - written on the tape perhaps ? If you actually read the manuales/ man pages or even read the details about the media contents report, or even tested it like I suggested, you would find that NBU actually loads the tape and reads it in the tape drive. The images on media looks at the details in the Image catalog - it says this exactly in the description you posted above . Martin
  • mph999's avatar
    mph999
    Level 6
    13 years ago
    The first line of each description you have posted tells you if the details are taken from the image catalog, or, from somewhere else .. The details you have posted also tell you what is conatained in each report Here is an idea, run the two repoerts on your system, then you can compare the differencies Martin
  • Arun_K's avatar
    Arun_K
    Level 6
    13 years ago

    So in which case,NBU is fetching the info from EMM(CATALOG) ?

  • mph999's avatar
    mph999
    Level 6
    13 years ago
    The media contentes reads the info directly from the media header and the backup header. Where do you the think the media /backup headers are. The clue MEDIA header - written on the tape perhaps ? If you actually read the manuales/ man pages or even read the details about the media contents report, or even tested it like I suggested, you would find that NBU actually loads the tape and reads it in the tape drive. The images on media looks at the details in the Image catalog - it says this exactly in the description you posted above . Martin
  • mph999's avatar
    mph999
    Level 6
    13 years ago
    The media contentes reads the info directly from the media header and the backup header. Where do you the think the media /backup headers are. The clue MEDIA header - written on the tape perhaps ? If you actually read the manuales/ man pages or even read the details about the media contents report, or even tested it like I suggested, you would find that NBU actually loads the tape and reads it in the tape drive. The images on media looks at the details in the Image catalog - it says this exactly in the description you posted above . Martin
  • Arun_K's avatar
    Arun_K
    Level 6
    13 years ago

    Media Contents Report :From media

    Images on Media Report:From image catalog.

     

    Thanks Martin

  • mph999's avatar
    mph999
    Level 6
    13 years ago

    Yes, correct.

    Please please please try these things yourself - you will learn a lot more than asking for the answers.

    I got most of my knowledge from playing around ...

    Courses are great for the basics, but you only really understand it when you try something and see what it does.

    Martin

  • Possible's avatar
    Possible
    Level 6
    13 years ago

    Arun,

    When u run bpmedia -mcontents ...there will be job created for the that in Activity monitor..

    Have u seen it ??

    Thanks.

  • Marianne's avatar
    Marianne
    Level 6
    13 years ago

    He never tries to actually test the theory.  If he did, he would never post all these questions....