TurboIMAGE/XL Database Management System Reference Manual MPE/iX V6.5 (30391-90011)

Chapter 7 373
Logging and Recovery
The Mirror Database
When the RESTART file is successfully opened, DBRECOV identifies all the databases in the
RESTART file, and verifies that they are in RESTART mode. DBRECOV then checks the time
stamps in the RESTART file and the databases to make sure they match. If the time stamps
do not match, the following message is printed:
RESTART TIME STAMPS DON'T AGREE WITH DATABASE TIME STAMPS
This indicates incompatibility of the RESTART file with the data bases. The MPE/iX prompt
is returned. Locate the correct RESTART file, and run DBRECOV,ABORT again.
After the RESTART file is opened, DBRECOV tries to open all databases identified in the
RESTART file. For each database that cannot be opened, DBRECOV displays the following
message:
Can't re-open DATABASE basename
CONTINUE WITH ABORT (N/Y)?
DBRECOV then allows the user to make sure that the ABORT is desired. If not all databases
are in the RESTART file, it may mean that this a different set of databases. Respond Y or
YES to continue the ABORT, and N, NO (or press carriage return) to stop the ABORT.
DBRECOV then checks to make sure all the databases in the RESTART file are set for
RESTART. When DBRECOV encounters a database not in RESTART mode, it prompts:
DATABASE basename IS NOT IN RESTART MODE
CONTINUE (N/Y)?
Respond Y or YES to continue the ABORT, and N, NO (or press carriage return) to stop the
ABORT.
When all compatibility checks have passed, DBRECOV displays all databases in the RESTART
file:
DATABASE(S) WITH RECOVERY TO BE ABORTED:
base1.group.acct
base2.group.acct
.
.
If not all of the databases can be opened, DBRECOV prints an MPE/iX file error and prompts
the user to continue with the ABORT:
CONTINUE WITH ABORT (N/Y)?
Respond Y or YES to continue the ABORT, and N, NO (or press carriage return) to stop the
ABORT.
After ABORT is successfully completed, the current RESTART file is purged, the MPE/iX
prompt is returned, and the user can issue a DBUTIL >>SHOW command. The RESTART flag