Verifying Your Backup Media [ Performing System Management Tasks ] MPE/iX 5.0 Documentation
Performing System Management Tasks
Verifying Your Backup Media
Use the VSTORE command to verify that your backup media is good and can
be used in a recovery. This step can prevent the possible loss of data
resulting from attempting to restore files on a tape that is damaged or
defective.
The parameters for the VSTORE command are defined below:
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| | |
| Parameter | Definition |
| | |
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| | |
| ONERR= | Specifies what to do if VSTORE encounters an error. To stop |
| | processing if it encounters an error, use ONERR=SKIP. To continue, |
| | use ONERR=SKIP. |
| | |
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| | |
| SHOW | Specifies where to display the results of the VSTORE command. To |
| | display them on the console, use SHOW. To print the results, use |
| | SHOW=OFFLINE. |
| | |
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| | |
| LOCAL | Use to verify files that were written to tape from a group and |
| | account other than the logon account of the verifier. |
| | |
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| | |
| DIRECTORY | Use to verify the file system directory. |
| | |
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To verify your tapes
To verify your backup tape set, do the following:
1. Create a backreference by entering:
FILE TAPEFILE;DEV=TAPE
2. Enter the VSTORE command to verify the copies of the files in the
specified directory. For example, to select all files in all
groups in all accounts and display the results on the console,
enter:
VSTORE *TAPEFILE;@.@.@;ONERR=QUIT;SHOW;LOCAL;DIRECTORY
To use the file equation issued by the system for your logon user name,
use a semicolon as a place holder for the tape file reference. For
example:
VSTORE ;@.@.@;ONERR=QUIT;SHOW;LOCAL;DIRECTORY
To print the results of VSTORE
To print the results of the VSTORE command, add the parameter
SHOW=OFFLINE. For example, to select all files in all groups in all
accounts and print the results, enter:
VSTORE ;@.@.@;SHOW=OFFLINE
NOTE Once you have created your backup tapes and are ready to restore
them, you can use the new CHECKSLT command to check the tape and to
estimate the amount of contiguous disk space required on LDEV 1 for
the restore.
MPE/iX 5.0 Documentation