5 Database Administration

Rollback Segment

3Enter /vs/bin/util/rb_init to display the current size of the rollback segment, R1.

The system displays a message similar to the following:

Rollback segment R1 is currently 653312 bytes in size, would you like to reduce the size of this rollback segment? (y/n)

The original size of the rollback segment was set to 653312 bytes. If the current size is close to this number, or if it is less than one-fourth of your total database size, you do not need to reduce the size of the rollback segment.

To terminate this procedure, go to step 4.

To continue with this procedure and reduce the size of the rollback segment, go to step 5.

4To terminate the rb_init rollback segment, enter

command without reducing the size of the n

The system returns to the system prompt #. You have completed this procedure.

5Enter y to reduce the size of the rollback segment.

The system executes the rb_init command. The system displays the following message If the voice system is running:

The voice system is running. Is it OK to stop the voice system? (y/n)

UCS 1000 R4.2 Administration 585-313-507

Issue 3 April 2000 226