This section describes the procedure for handling route errors.

Procedure

Note: The numbers to the left of the process boxes correspond to the item numbers in the following explanation:

1. Stops the application server and interrupts the online transaction.
2. Forcibly terminate HiRDB.
3. Change the value of the pd_rise_disaster_mode operand to alone.
4. Split all paired logical volume groups by executing the pairsplit command (with the -S option specified).
5. Restart HiRDB. After the restart, do not update the database that is being used with online transactions.
6. Terminate HiRDB normally.
7. Execute the pdcopy command to make a backup of each system.
   For details about how to make backups, see the HiRDB Version 9 System Operation Guide.
   
8. Copy the backup files made in step 7 to the remote site.
9. Contact the person responsible for maintaining the Hitachi disk array subsystems, determine the cause of the route error, and take the appropriate corrective action.
10. Execute the pairesync command to re-synchronize the paired logical volume groups.
11. Execute the pairevtwait command (with the -s pair option specified) on the paired logical volume groups specified in the pairesync command executed in step 10, and wait until a termination code of 0 is returned.
12. Change the value of the pd_rise_disaster_mode operand to normal.
13. Start HiRDB.
14. Collect a synchronization point dump by executing the pdlogsync -d sys -w command and wait until validation is completed. For HiRDB/Parallel Server, execute the pdlogsync -d sys -w command on all servers.