Cisco Headend System Release 2.5 Installation Guide
E-2
Setting Up an Automated Database Backup
78-738190-01 Rev B
Configure the DNCS for an Automatic Database Backup
Verifying the Tape Drive Device Name
Before you configure your system for an automatic backup of the Informix database,
confirm that the script that performs the backup uses the correct device name for the
tape drive. Follow these instructions to confirm the correct device name.
1.
Insert a blank tape into the tape drive of the DNCS.
2.
Type mt -f /dev/rmt/0 offline and then press Enter.
Important: The ‘0’ in /dev/rmt/0 is zero.
Result: If you have installed the tape drive correctly, the tape will eject.
Important: The ‘0’ in /dev/rmt/0 is zero.
Result: If you have installed the tape drive correctly, the tape will eject.
3.
Did the tape eject?
•
•
If yes, go to Editing the crontab, later in this appendix.
Note: The device name of your tape drive is correct because the tape
Note: The device name of your tape drive is correct because the tape
ejected.
•
If no, go to step 4.
4.
Type the following UNIX routine.
Important: Type the routine just as shown by pressing Enter at the end of
Important: Type the routine just as shown by pressing Enter at the end of
each line.
for drive in 0 1 2 3 4 5 6 7
for drive in 0 1 2 3 4 5 6 7
do
mt -f /dev/rmt/$drive offline
done
Results:
•
Results:
•
The system tries to eject the tape using eight possible tape drive device
names (/dev/rmt/0 through /dev/rmt/7).
•
The tape ejects when the UNIX routine reaches the correct device name.
•
The screen clearly shows which tape device name was used when the tape
ejected.
5.
In the space provided, note the device name that was used when the tape
ejected. _______________________
6.
Go to Edit the noinputDbBackup.sh File, next in this appendix.