60
•
Controller Module LEDs
Number Name
Status
Cache Dirty
OFF
Host Busy
OFF
Control Status
ON
CBM Status
ON
NOTE:
Refer to
System Maintenance
for more information regarding the LED description.
•
PSU LED
Turning Off the System
Before turning off the system, ensure that no processes are taking place such as
Regenerate
Logical Drive Parity
or
Media Scan
.
To turn the system off:
1. Close all applications to stop the I/O access to the system.
2. Flush the cache to clear the DRAM data. If the DRAM contains cached data, the
Cache_Dirty
LED lights up in amber.
3. Flush all cached data using the controller’s shutdown function to prepare the RAID
system for a safe power shutdown. Refer to your PAC Management Software manual for
details.
4. Once the cache is flushed, switch the system off.
