Table of ContentsView in Frames

Specifying a test restore

You can test a restore by performing a restore that reads the tape, but does not write to the storage system.

About this task

You can do a test restore in the following situations:

  • To verify a backup tape that is old and might have deteriorated
  • To verify that the set of tapes you have is complete
  • To verify a backup tape that you believe was not written properly
  • To quickly ensure that a block size works, if the block size is unknown
Note: Because a test restore depends on the speed of reading from tape, it takes almost the same time as an actual restore.


  1. To specify a test restore, include the N option in the restore command line.

    Note: This option does not take a parameter.


The following command performs a test restore of a backup:

restore rfN rst0a

The following list describes the elements of the command line:
Performs a full restore.
Specifies that a tape device is supplied in the command line.
Specifies a test restore.
The tape device.