Amber LED is lit
(continued)
storage 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 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.
One of the drive drawers
is not fully closed
Use Storage Manager software to identify
the drive drawer that was not closed and
close that drawer. Pull the drawer out
about 1 inch; then push it back in until it
clicks in place.
Check all drive drawers in the enclosure
to ensure they are fully closed.
Battery fault
Battery unit failure
Verify the failure using the Storage
Manager Client and replace the failed
battery.
ESM
Board failure
Replace the failed ESM. See “Replacing
components” on page 89 for more
information.
Amber LED is lit and
green LED is off
Power supply
(Amber fault LED is
lit and both power
LEDs are not lit)
The power switch is
turned off or there is an
ac or dc power source
failure.
Replace the failed power supply or turn
on all power-supply switches. If this is a
dc power supply, check the disconnect
device to make sure that it is working and
is in the on position.
Chapter 6. Hardware maintenance
131
Summary of Contents for DCS3700
Page 1: ...IBM System Storage DCS3700 Installation User and Maintenance Guide...
Page 2: ......
Page 3: ...IBM System Storage DCS3700 Installation User and Maintenance Guide...
Page 8: ...vi IBM System Storage DCS3700 Installation User and Maintenance Guide...
Page 12: ...x IBM System Storage DCS3700 Installation User and Maintenance Guide...
Page 18: ...xvi IBM System Storage DCS3700 Installation User and Maintenance Guide...
Page 22: ...xx IBM System Storage DCS3700 Installation User and Maintenance Guide...
Page 62: ...40 IBM System Storage DCS3700 Installation User and Maintenance Guide...
Page 75: ...Figure 34 Single Expansion Enclosures Chapter 3 Cabling the DCS3700 53...
Page 88: ...66 IBM System Storage DCS3700 Installation User and Maintenance Guide...
Page 150: ...128 IBM System Storage DCS3700 Installation User and Maintenance Guide...
Page 168: ...146 IBM System Storage DCS3700 Installation User and Maintenance Guide...
Page 178: ...156 IBM System Storage DCS3700 Installation User and Maintenance Guide...
Page 180: ...158 IBM System Storage DCS3700 Installation User and Maintenance Guide...
Page 188: ...166 IBM System Storage DCS3700 Installation User and Maintenance Guide...
Page 198: ...176 IBM System Storage DCS3700 Installation User and Maintenance Guide...
Page 201: ......
Page 202: ...Part Number 90Y8588 Printed in USA 1P P N 90Y8588...