
Chapter 3 Monitoring the Xserve 17
Processor Activity
Drive Module Status
Indicator light Color Indicates
System activity Blue intermittent Processor activity and load. Each row is divided in half,
with four lights representing each of the four
processor cores.
System activity lights
Indicator light Color Indicates
Drive module status
(upper LED)
Green The drive is on and working.
Yellow The drive is working but has detected a warning
condition.
Red The drive has failed.
Drive module activity
(lower LED)
Off The Xserve is currently not reading from or writing to
the drive.
Blue intermittent The Xserve is reading from or writing to the drive.
Don’t remove the drive if this light is flashing. For
information, see the section about replacing a drive
module in the Xserve Setup Guide that comes with
the Xserve.
Drive module activity light (blue)
Drive module status light (green)
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