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

8.5.2 Recovery Procedure for Operation Log Files (MSCS)

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:

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

1. Check the status of resources.

   Check the resource status using the cluster administrator.

   Vary any online Shunsaku resources offline.

2. Replace the shared disk.

   Replace the shared disk where the fault has occurred and restore its settings.

3. Activate the shared disk.

   Vary the shared disk resource online using the cluster administrator.

   Make sure that the status of the resource is online.

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 8.3.4 Creating an Area for Storing Operation Log Files for more information.

5. Activate Shunsaku resources.

   Vary Shunsaku resources online using the cluster administrator, and then start Shunsaku.

   Once Shunsaku has started, make sure that the status of all resources is online.

6. Recreate the operation log files.

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

   1. Recover operation log files by 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
      copy /b   director-data-file-folder backup-data
      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"
   • backup-data: "Z:\backup\shund1\"
   • director-data-file-folder: "Y:\shunsk\shund1"

   shundrecover  -s shund1 -l
   shundbackup -s shund1 -b
    copy  /b Y:\shunsk\shund1\* Z:\backup\shund1\
   shundbackup -s shund1 -e

   
   

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