Cisco Headend Digital Broadband Delivery System Guía Del Usuario
3-8
Improve Backup Reliability With the bkchk Utility
749640 Rev D
Run the bkchk Utility,
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Confirming the Date on a Backup Tape
System operators may occasionally have to restore a system using data from a
previous day’s backup tape. Because it is crucial that a system be restored using the
correct data, system operators can use the bkchk utility with the –t option to confirm
the date that a backup tape was made. Follow these instructions to confirm the date
on a backup tape.
1.
Insert your backup tape into the tape drive of the DNCS.
2.
If necessary, open an xterm window on the DNCS.
3.
Type bkchk.ksh -t and then press Enter.
Result: The system examines the tape and displays a message similar to the
Result: The system examines the tape and displays a message similar to the
following:
Date on tape in [device name] = [date]
Note: The system substitutes the device name of the tape drive for [device
Date on tape in [device name] = [date]
Note: The system substitutes the device name of the tape drive for [device
name] and the date the backup tape represents for [date].
4.
Compare the date shown in the message from step 3 with the date of the tape
backup you need and then choose one of the following options.
•
•
If the tape has the correct date, proceed with the restoration.
•
If the tape has the incorrect date, eject the tape, obtain the correct backup
tape, and repeat these steps.
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