Technical information

Technician’s Handbook
128
Fixing Database Errors
If the DBMS CHECK command finds errors in the database,
fix it by restoring an uncorrupted version from a DATA SAVE
backup on RSD.
Note: If a Guest Service function is performed during a DBMS Check, a major alarm is
raised because the database is not fully accessible. A subsequent DBMS
Check command will clear the error.
Restoring the Database from a DATA SAVE Backup
If your latest DATA SAVE backup is on the hard drive, you
can restore the database faster by using it. Use the DATA
QUERY command to display details about the database on
the hard drive.
Always ensure you have an up-to-date DATA SAVE backup
on RSD in case of hard disk failure.
Non-redundant Systems
1. If you don’t have an up-to-date DATA SAVE on RSD,
perform a DATA SAVE to RSD (see page 164).
2. Enter:
DBMS FLAG OFF
3. Hold down PANEL ENABLE and press A RESET.
Service is lost until you complete this procedure.
4. Insert the datasave RSD into the RSD drive.
5. Enter:
VOL MOUNT RSD
Read the volume name of the RSD from the system
response on the maintenance terminal.
6. Enter:
DATA RESTORE ∗.<volume name of RSD>
RSD 15 min
Tape 60 min