Powering off the expansion enclosure: 2145-92F

Before you power down a 2145-92F expansion enclosure, review the following procedure.

Before you begin

When you power off an expansion enclosure, the drives in that enclosure are no longer available to the control enclosure. The SAS chain also breaks. Any expansion enclosures that are beyond the enclosure that is powered down are also disconnected from the control enclosure.

Before you power off an enclosure, use the management GUI to show the volumes that depend on that enclosure. In the system view, select the expansion enclosure to be powered off. Then, select Dependent Volumes. If no configuration changes are made, other volumes remain available to the system.

Procedure

  1. Stop all I/O to the system from hosts that access the expansion enclosure.
  2. Unmount any associated file systems.
  3. Wait 5 minutes for all write data to be flushed to the drives.
  4. Unplug both of the power cords from the rear of the expansion enclosure to remove all power from the enclosure.
Parent topic: Installing the 2145-92F expansion enclosure