Cisco Headend Digital Broadband Delivery System ユーザーガイド
Chapter 3 Backup Procedures
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Database Backup Script Options
The script that backs up the databases is called backupDatabase. You can run the
backupDatabase script with the following options:
-b — Blocks. Specifies the block size of the tape device to which the database
backup is written.
Note: If –b is not specified, the system uses a default tape block size appropriate
Note: If –b is not specified, the system uses a default tape block size appropriate
for your tape drive. If the system is unable to determine your tape drive, the
system uses 32.
-s — Size. Specifies the size of the tape device to which the database backup is
written.
Note: If –s is not specified, the system uses a default tape size appropriate for
Note: If –s is not specified, the system uses a default tape size appropriate for
your tape drive. If the system is unable to determine your tape drive, the system
uses 8000000.
-l — Local-tape-drive. Specifies tape drive to use on local host.
(for example — /dev/rmt/0h)
-r — Remote-tape-drive. Specifies tape drive on a remote host.
(for example — sparky: /dev/rmt/0h or 192.168.1.10: /dev/rmt/0h)
-c — check-database. Checks the integrity of the databases. (Does not fix if errors
are found.)
-n — non-interactive. Non-interactive, useful when running from cron.
-v — verbose. Verbose output.
-h — help. Provides a brief description of the valid options.
Backing Up the Informix Database
Use this procedure to back up the DNCS and Application Server databases to the
DNCS.
Notes:
Notes:
The DNCS, the Application Server, and Spectrum can be running while you back
up the Informix database.
It may take up to 30 minutes to back up a typical database with approximately
100,000 DHCTs.
1 If necessary, open an xterm window on the DNCS.
2 Complete the following steps to log on to the xterm window as root user.
2 Complete the following steps to log on to the xterm window as root user.
a Type su - and press Enter. The password prompt appears.
b Type the root password and press Enter.
b Type the root password and press Enter.
3 If necessary, insert the CD labeled DBDS Maintenance CD into the CD drive of
the DNCS.