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FORMATVOL
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The FORMATVOL command formats a disk pack (volume) to get it ready for initialization with the NEWSET, NEWVOL, or INITVOL commands . This command is needed only on rare occasions when an irrecoverable disk error has been detected. After it is formatted, the volume is in the UNKNOWN state.

CAUTION: FORMATVOL destroys all data on the specified volume.

Task

Formats a volume.

Capability

CV, create mountable volume set

Syntax

   FORMATVOL [LDEV=] ldev

Parameters

ldev

A number from 1 to 100 specifying the logical device number of the volume to be formatted. Required.

Example

This example shows how to format a volume.

  1. Use the DSTAT command to check the status of the volume you want to format.

       volutil: :DSTAT



   LDEV-TYPE  STATUS   VOLUME (VOLUME SET - GEN)

   ---------  ------   -------------------------

   21-079350  MASTER   BVOL1  (BSET-0)

   22-079350  MEMBER   BVOL2  (BSET-0)

   23-07950   MEMBER   BVOL5  (BSET-0)

  2. Use the VSCLOSE command to place the volume set in the LONER state. The VSCLOSE command is described in this chapter. Then use the DSTAT command to display the states of all the volumes.

    

   volutil: :VSCLOSE BSET

   volutil: :DSTAT



   LDEV-TYPE  STATUS   VOLUME (VOLUME SET - GEN)

   ---------  -------  ---------------------------

   21-079330  LONER   BVOL1   (BSET-0)

   22-079350  LONER   BVOL2   (BSET-0)

   23-079350  LONER   BVOL5   (BSET-0)

  3. Now that you have verified that the volume set is in the LONER state, you can use the SCRATCHVOL command to place the volume in the SCRATCH state. Refer to the SCRATCHVOL command for more information.

  4. Use the FORMATVOL command to format the volume on LDEV 23. After you format the volume, the volume will be in the UNKNOWN state. Again use the DSTAT command to verify the state of the volume.

   volutil: SCRATCHVOL 23



   *Verify: Scratch volume on ldev 23 [Y/N] ? Y

   *Note: Loner volume scratched on ldev 23.



   volutil: FORMATVOL 23



   Verify: Format volume on ldev 23 [Y/N] ? Y

   Note: Volume has been successfully formatted on ldev 23



   volutil: :DSTAT



   LDEV-TYPE  STATUS   VOLUME (VOLUME SET - GEN)

   ---------  ------   ---------------------------

   21-079330  LONER   BVOL1   (BSET-0)

   22-079350  LONER   BVOL2   (BSET-0)

   23-079350  UNKNOWN


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