Table 9. Troubleshooting (continued)
Problem
indicator Component Possible cause Possible solutions
Amber LED is lit
(continued)
RAID controller
fault LED
(service action
LED may also
be lit)
Unsupported
controller
Controller configurations do not
match. Check that host daughter
card and cache memory are the
same in both controllers.
Front panel Fibre Channel
connection
Check that the CRUs are
properly installed. If no amber
LEDs are lit, suspect failure of
the SFP module. Verify the failure
using the DS Storage Manager
Client.
If all Fibre Channel connections
failed, suspect failure of the Fibre
Channel host daughter card.
SAS connection Check the SAS connection to
verify that the CRUs are properly
installed.
If the SAS port LED is off,
suspect failure of the SAS host
daughter card.
iSCSI connection Check the iSCSI connection to
verify that the CRUs are properly
installed.
If the iSCSI port LED is off,
check the Ethernet cable or verify
the link speed.
If all the iSCSI port LEDs are off,
suspect failure of the iSCSI host
daughter card.
Battery fault Battery unit failure Verify the failure using the DS
Storage Manager Client and
replace the failed battery.
Amber LED is lit
and green LED is
off
Power supply
(fault and
power LEDs
are lit)
The power switch is
turned off or there is
an ac power failure.
Replace the failed power supply
or turn on all power-supply
switches.
Amber and green
LEDs are lit
Power supply
(fault and
power LEDs
are lit)
Power supply failure Replace the failed power supply.
See Chapter 5, âReplacing
components,â on page 93 for
more information.
All amber and
green LEDs are
slowly flashing
All drives
(activity and
fault LEDs are
not lit)
Check for and solve one of the following situations:
v Expansion enclosures are not correctly connected to
the DS3500.
v DS3500 does not have the correct firmware version.
Chapter 6. Solving problems 129
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