1-10 System Overview
Table 1-2. Disk Drive Status LED Panel Indicators
LED Status Description Response
Disk Drive
Power
Off Disk drive
power off
Remount the disk drive
Green Disk drive
power on
None required (normal)
Green
(Flashing
light)**
Accessing disk drive None required (normal)
Disk Drive
Error
Off No Fault None required (normal)
Amber
(Steady light)
(Flashing light)
Disk drive failure*
Rebuilding*
Replace disk drive
None required (normal)
*Software controlled.
**Blinks off during disk access.
Table 1-3. CPU Module Status LED Indicators
Fail LED State LED Description Response
Off Green Both CPU modules are
operating normally.
None required (normal)
Off Amber CPU module in simplex
mode is operating normally.
None required (normal)
Red Green CPU module is executing
online power-on self-test
(POST)
None required (normal)
Red Amber System is dumping memory
to disk.
None required (normal)
Red OFF Standby (No DC, AC only)
or
CPU module failure
Turn on system power
or
Replace CPU module.
OFF OFF No power to CPU module. Check that the module is properly
installed. Also, check both power
supplies and power cords.
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