PS 4000 Gen2 Series Hardware Manual
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Controller Module LEDs
Number
LED Name
Status
Control Status
ON
CBM Status
ON
/OFF
Cache Dirty
OFF
Host Busy
OFF
NOTE:
Refer to chapter
System Monitoring
for more information regarding the LED description.
2.3.9
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 off the system:
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 PAC Management Software manual for details.
4.
Once the cache is flushed, switch off the system.
