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IBM® Netfinity® EXP300 Installation and User’s Guide
Amber LED on and
green dc power
LED off
Power supply
CRU
Power supply
failure
If the power switch is on, replace the power
supply CRU. Refer to “Removing a hot-swap
power supply/fan unit” on page 33.
Amber LED on and
green ac power
LED off
Power supply
CRU
No ac power to
power supply.
Check the ac
power cord
(cable) or
breaker
If ac power is good at the source, replace the
power cord CRU. If the power supply has
failed, replace the power supply CRU. Refer to
“Removing a hot-swap power supply/fan unit”
on page 33.
Green LED on
Drive CRU
ID=6
Cluster
configuration
If not currently cluster configured, power cycle
the Netfinity EXP300 to re-enable ID=6.
One or more green
LEDs off
One or two
drive CRUs
No activity to
the drives
No action is required.
All drive CRUs
or those on one
bus
No activity to
the drives
No action is required.
Damaged or
loose SCSI
cables
Check SCSI-bus cables and connections.
ESM board
failure
Use RAID management software to check the
SCSI-bus status. Replace the ESM board. Refer
to “Replacing an ESM board” on page 31.
Midplane failure Have the expansion unit serviced.
Front panel
Power supply
Make sure the cables are plugged in and power
supplies are turned on.
Hardware
failure
If any other LEDs are turned on, have the
expansion unit serviced.
Intermittent or
sporadic power loss
to the expansion
unit
Some or all
CRUs
Defective ac
power source or
partially
plugged power
cable
Check the ac power source. Resecure all
installed power cables and power supplies. If
applicable, check the power components (power
units, UPS, and so on). Replace defective power
cables.
Power supply
failure
Check for a fault LED on the power supply and
replace the failed CRU. Refer to “Installing a
hot-swap power supply / fan unit” on page 33.
Midplane failure Have the expansion unit serviced.
Problem indicator
Component
Possible cause
Possible solutions
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