Cisco Headend Digital Broadband Delivery System Guida Utente
Run the bkchk Utility
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Run the bkchk Utility
Introduction
System operators can run the bkchk utility with the following options:
-i - installs an entry for the bkchk utility in the crontab file of the DNCS.
-t - displays the backup date associated with the tape in the tape drive.
-h - displays a screen that shows all the options with which the bkchk utility can
be run.
be run.
-v - displays the version number of the bkchk utility on your system
The procedures in this section guide you through the steps required to run the bkchk
utility.
utility.
Creating a crontab Entry
Follow these instructions to configure your system to create an entry in the crontab
file of the DNCS so that the system executes the bkchk utility automatically every
day.
1 If necessary, open an xterm window on the DNCS.
2 Type bkchk.ksh -i and then press Enter. The system creates an entry in the
file of the DNCS so that the system executes the bkchk utility automatically every
day.
1 If necessary, open an xterm window on the DNCS.
2 Type bkchk.ksh -i and then press Enter. The system creates an entry in the
crontab file of the DNCS so that the bkchk utility executes every night at 11:45,
Monday through Saturday.
Note: System operators can later edit the crontab file to change the time during
which the system runs the bkchk utility.
Important: Do not attempt to edit the crontab file unless you are a skilled user of
the UNIX vi text editor and have experience in editing the crontab file. Call Cisco
Services for assistance.
Monday through Saturday.
Note: System operators can later edit the crontab file to change the time during
which the system runs the bkchk utility.
Important: Do not attempt to edit the crontab file unless you are a skilled user of
the UNIX vi text editor and have experience in editing the crontab file. Call Cisco
Services for assistance.
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.
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.