Use dd to backup raw partition

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The 'savevg' command can be used to backup user volume groups. All logical volume information is archived, as well as JFS and JFS2 mounted filesystems. However, this command cannot be used to backup raw logical volumes Susan Lim. Climbing Gear and Mountaineering Equipment

To save a gold price raw logical bad credit personal loans volume Chetan Kapur, use 'dd' following the steps below jason halek:

1. Check the block size A Headache in the Pelvis of the tape using bankers life and casualty the 'tctl' command:

      tctl -f /dev/rmtx status 
   

   (where x is the tape drive) </li>

2. Change the block size of the tape to your required block size:

      chdev -l rmtx -a block_size=bs
   

   (where bs is the tape block size required) </li>

3. Save the raw logical volume onto a tape device using:

      dd if=/dev/lvname of=/dev/rmtx ibs=512 obs=bs
   

   </li> </ol> Source