Troubleshooting; Storage Server Troubleshooting - IBM TotalStorage DS4300 Installation And User Manual

Troubleshooting

Always use the storage-management software to diagnose storage server problems
and component failures. You can use Table 15 to find solutions to problems that
have definite indicators.
Table 15. Storage server troubleshooting
Problem
indicator
Amber LED on
Amber LED is off
and green LED off
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IBM TotalStorage DS4300 Fibre Channel Storage Server: Installation and User's Guide
Component Possible cause
Drive CRU Drive failure
Fan CRU Fan failure
RAID controller RAID controller
Fault LED failure
Expansion or host SFP port empty
port bypass LED
Fibre-channel
cable is not
attached to the
storage
expansion
enclosure
The HBA, switch,
or storage
expansion
enclosures are
set at 1Gb/s
No incoming
signal detected
Front panel General system
error
Power-supply Power switch is
CRU turned off or ac
power failure
Possible solutions
Replace the drive that has failed.
Replace the fan that has failed.
If the RAID controller Fault LED
is on, replace the RAID controller.
If theRAID controller has been
placed offline by the user, use
storage management software to
place it online. If the controller
failed, replace the RAID
controller.
No corrective action is needed if
this is a stand-alone storage
server with no storage expansion
enclosures attached, and if the
system is properly configured.
Otherwise, check to make sure
that the storage expansion
enclosure is powered on and the
FC cables are attached properly.
Connect the fibre-channel cable
to the enclosure port; check other
connections.
The DS4300 supports 2Gb/s
fibre-channel connections only
using the 05.33.xx.xx firmware.
Make appropriate hardware
changes to ensure the DS4300
ports are connecting to ports that
operate at 2Gb/s.
Reattach the SFPs and
fibre-channel cables. Replace
input and output SFPs or cables
as necessary.
Indicates that a Fault LED
somewhere on the storage server
has turned on. (Check for amber
LEDs on CRUs.). Use Storage
Manager software to diagnose
server problems.
Turn on all power-supply power
switches.