Apple Xserve (Early 2009) - Manual (Page 20)

Indicator light Color Indicates
System identifier Yellow, alternating between
flashing and off One of the following:
 The Xserve has detected an
alarm condition. Open Server
Monitor for information.
 The identifier light has been
turned on manually using
Server Monitor.
Yellow flashing The identifier light has been
turned on manually by someone
pressing the front or rear system
identifier button.
Processor Activity
System activity lights
Indicator light Color Indicates
System activity Blue intermittent Processor activity and load.
Drive Module Status
Drive module activity light (blue)
Drive module status light (green)
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.
20 Chapter 3 Monitoring the Xserve