Sidewinder G2 6.1.2 Administration Guide - Glossary of Technical ...

Appendix F: Basic Troubleshooting
Backing up system files
To perform a full (level 0) system backup, follow the steps below.
1 Attach a keyboard and monitor directly to your Sidewinder G2.
If your system has multiple keyboard/monitor connection ports, you must
attach the keyboard and monitor into the same keyboard/monitor connection
port pair (that is, attach both items either to the front connection ports
or the back connection ports).
2 Enter the following command on your Sidewinder G2 system to reboot to
the Administrative kernel:
shutdown -g now
3 Press Enter when asked whether to check and mount all file systems. The
system prompt will appear.
If you have enabled authentication for the administrative kernel, you will be
prompted to log in before the system prompt appears.
4 Insert a backup DAT in the Sidewinder G2’s tape drive and wait for the tape
to reach its load-point.
5 Enter the following command to run the full backup script:
/etc/backups/level0.backup
The backup process will take several minutes. You will see a “DUMP IS
DONE” message for each file system. When the backup is complete, the
# prompt appears and the tape ejects.
6 Label the tape (include type of backup, date, time, and so on).
7 Reboot the system to the Operational kernel by entering the following
command:
shutdown -r now
Performing an incremental backup
The /etc/backups/do.dump command allows you to use several different
options that track which files have changed since the last time you backed up,
so that you are not doing full backups each time.
This allows you to back up only the files that have changed since the last
backup. For example, your first system backup would be a full backup (Level
0). The next time you back up, you would assign a backup level (a number
from 1 to 9); for example, you could label it backup Level 1. The Level 1
backup procedure would check your file system, searching for files that were
not backed up in Level 0. Only those files would be written to the tape. The
next time you did an incremental backup, it would back up only the files that
had changed since the previous Level 1 backup.
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