Chapter 4: Subsystem Operation and Monitoring
Power Off Procedure
4-5
System is ready for I/Os.
4.2 Power Off Procedure
If you wish to power down the RAID, please follow these steps:
NOTE:
If you wish to power down the subsystem, please ensure that no time-
consuming processes, like “Regenerate Logical Drive Parity” or a
“Media Scan,” are taking place.
Step 1.
Stop I/O access to the system.
Close your applications running on the host computer to stop all I/O
access to the subsystem.
Step 2.
Flush the cache.
Use the “Shutdown Controller” function to flush all cached data. This
prepares the RAID subsystem to be powered down.
Step 3.
Turn off the power.
Power off the subsystem using the power switch on each PSU. Once
the subsystem is powered down, other devices that are connected to the
subsystem can be sequentially powered down.
4.3 Subsystem Monitoring Overview
The Galaxy RAID subsystem is equipped with a variety of self-monitoring
features that ensure a storage administrator is constantly aware of the
subsystem’s operation statuses. These monitoring features provide vital
feedback to help maintain the operational integrity of the subsystem. Prompt
response to warnings and component failure notifications is necessary and
helps ensure the longevity of the subsystem.
Self-monitoring features include:
Firmware (FW):
The RAID controller in the RAID is managed through
the pre-installed FW, which can be accessed using either the LCD
keypad panel or a PC hyper-terminal. The RAID can be connected to a
GALHDX2
Ready
