Chapter 4: Subsystem Connection and Operation
4.6Power Off Procedure
To power off the subsystem, please follow these steps:
NOTE:
When powering off the subsystem, please ensure that no
Step 1. Stop I/O access to the system.
Use the software provided on the host computer to stop all I/O accesses to the subsystem. Please refer to the documentation that came with your application servers and operating systems.
Some operating systems may require “unmounting” disk volumes (mapped LUNs) before powering off the array.
Step 2. Flush the cache.
Usually the cached writes will be distributed in a short time. You may also use the “Shutdown Controller” firmware function to flush all cached data. This prepares the RAID subsystem to be powered down.
Step 3. Turn off the power.
Turn off the power switch at the rear panel of the RAID subsystem. Once the RAID subsystem has been powered off, other devices connected to the subsystem may be powered down.
Subsystem Connection and Operation |
