Switching off the power supply

Use this workflow to switch off the power supply.

1. Stop the host I/O.
2. Switch off the power supply.

When power is restored, the behavior of Thin Image depends on the following:

• The power supply and having data in shared memory.
• The power supply and losing data in shared memory.

Related Tasks

• Creating Thin Image data pools

  You can create Thin Image data pools using HDvM - SN. For information about the creation of HDP pools, see the Provisioning Guide.

• Creating Thin Image pairs using Device Manager - Storage Navigator

  You can create a Thin Image pair and define the pair in a consistency group. You can create 1,024 Thin Image pairs at the same time for and 32,768 for VSP G200, G400, G600, G800. To create more than 1,024 (or 32,768) pairs, repeat this task.

Parent Topic

• Maintaining pairs during storage system maintenance

  You can maintain pairs when you switch off the storage system power and when you replace the microcode.

Child Topics

• Power supply and existing shared memory

  After you switch off the power supply, you can use the pools and pairs if data in the shared memory exists and the data is not blocked.

• Power supply and losing data in shared memory

  If you lose power and the data in shared memory is lost, the VSP G1x00 and VSP F1500 storage systems save the data to SSD at the time the power supply is switched off, but for VSP Gx00 models and VSP Fx00 models, you must recreate the pools and pairs.