ADIC 6-00028-01 Rev A Time Clock User Manual


 
Managing the AMASS File System
6-00028-01 Rev A Operational Tasks 2-5
The “full backup” (backs up the Database and Journal) and
“partial backups” (backs up just the Journal) will allow you to
successfully restore your File System Database (and, therefore,
allow you to know where data is located on what piece of
media) if your current File System Database gets corrupted or
the hard disk crashes.
If the Journal (/usr/filesysdb/journal) tends to fill up
the available disk space before the normally scheduled full
backup, increase the frequency of the full backups.
Assign Backup Volume
For detailed information on making a Backup Volume, see the
"Initial Setup Tasks" chapter.
How to Modify Automated Schedule
To change the automatic backup schedule, use the procedure in
the following table.
Step Command Description
1 Log in as root.
2#
cd /var/spool/cron/crontabs Change directory to
where the crontab file
is located.
3 Edit the
/var/spool/cron/crontabs/amass table entry.
The defaults are shown below.
The first line runs a full backup at 3 a.m. (2 a.m. for IBM
platforms) on the first day of every month. The second line
runs a partial backup at 3 a.m. (2 a.m. for IBM platforms)
on all other days of the month.
The six active fields are: minute, hour, day, month, day of
week, and command. Each field, except the command field,
may be an asterisk.