Storage Controller Troubleshooting - IBM totalstorage 326 User Reference

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Model 326 User's Reference
Table 21. Storage controller troubleshooting
Problem indicator Component
Amber LED on Drive CRU
Fan CRU
RAID controller
Fault LED
Expansion port
bypass LED
Front panel
Amber LED is on and Power-supply
green LED off CRU
Amber and green LEDs Power-supply
on CRU
All green LEDs off All CRUs
Amber LED flashing Drive CRUs
Possible cause Possible solutions
Drive has failed Replace the drive that
has failed.
Fan failure Replace the fan that has
failed.
RAID controller has If the RAID controller
failed Fault LED is on, replace
the RAID controller.
GBIC port empty No corrective action is
needed if the system is
properly configured.
Fibre Channel cable No corrective action is
is not attached to needed.
the expansion unit
No incoming signal 1. Reattach the GBIC
detected
2. Replace input and
General system Indicates that a Fault
error LED somewhere on the
storage controller has
turned on. (Check for
amber LEDs on CRUs.)
Power switch is Turn on all power-supply
turned off or AC power switches.
power failure
Power supply failure Replace the failed
power-supply CRU.
Subsystem power is Check that all
off storage-controller power
cords are plugged in and
the power switches are
on. If applicable, check
that the main circuit
breakers for the rack are
turned on.
AC power failure Check the main circuit
breaker and AC outlet.
Power supply failure Replace the power
supply.
Midplane failure Have the storage
controller serviced.
Drive rebuild or No corrective action is
identity is in process needed.
and Fibre Channel
cables.
output GBIC or
cables as necessary.