Powering off local and external storage systems

1. Stop read or write I/O operations to the local storage system.

2. Split all pairs that use external volumes.

   For information on pairsplit operations, see the user guide for the relevant software.

3. Confirm that the status of each external volume is Normal or Disconnect.

4. Power off the local storage system.

   Wait for the local system to completely power off.

5. Power off the external storage system.

Parent Topic

• Powering off and on local and external storage systems

  When you power off the local system, data for each external volume in the cache memory of the local system is written to the external volume.