Interstage Shunsaku Data Manager Operator's Guide - Microsoft(R) Windows(R) 2000/ Microsoft(R) Windows Server(TM) 2003 - - UNIX -

8.5.4 Operation Log File Recovery Procedure (PRIMECLUSTER)

If the shared disk where operation log files are located fails, replace the disk, and then recover the operation log files. The following diagram shows the recovery procedure. Perform the restoration operations on the active server.

[Figure : Recovery Procedure for Operation Log Files (PRIMECLUSTER)]

1. Check the status of the cluster application.

   Check the status of the cluster application using the Web-Based Admin View.

   If the Shunsaku cluster application is 'online', stop it from the Web-Based Admin View.

2. Replace the shared disk.

   Replace the shared disk where the fault has occurred. Then restore the configuration status for the volume.

3. Activate the GDS resource.

   Activate the GDS resource to recover Shunsaku operation log files. This will enable the file system on the shared disk to be recognized form the active server.

   Refer to Activating GDS Resources in 8.4.2 Setting Up Shunsaku for more information on the procedure for activating the GDS resource.

4. Create an area for storing operation log files.

   Create a directory for storing operation log files on the file system on the shared disk if one does not exist.

   Refer to 8.4.4 Creating an Area for Storing Operation Log Files for more information.

5. Deactivate the GDS resource.

   Deactivate the GDS resource that was activated in Step 3.

   Refer to 8.4.5 Deactivating GDS Resources for more information on the procedure for deactivating the GDS resource.

6. Start the cluster application.

   Start the cluster application from the Web-Based Admin View.

7. Recover the operation log files.

   Recover the operation log files by executing the shundrecover command from the active director server.

   1. Recover operation log files using the shundrecover command.

      shundrecover  -s director-identifier -l

   2. After the recovery of the operation log files is complete, use the shundbackup command and the operating system copy command to back up the director data files.

      shundbackup -s director-identifier -b
      cp  backup-data director-data-file-folder
      shundbackup -s director-identifier -e

   

   After the recovery of the operation log files is complete, be sure to take a backup of the director data files. If a backup is not taken, an error will occur if recovery processing is performed subsequently.

   An example is shown below.

   • director-identifier: "shund1"
   • director-data-file-folder: "/share1/shunsk/shund1"
   • backup-data: "/backup/shund1/"

   shundrecover -s shund1 -l
   shundbackup -s shund1 -b
   cp  /share1/shunsk/shund1/* /backup/shund1/
   shundbackup -s shund1 -e

   These commands will complete the recovery of the operation log files, allowing jobs to recommence.