IBM DS3950, Руководство пользователя и инструкция по установке

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Table 21. Symptom-to-FRU index
Problem indicator Component Possible cause Possible solutions
Amber LED is lit Drive FRU
(Drive Fault
LED
Note: The
green Drive
Activity LED
might also be
lit.)
Drive failure Replace the failed drive.
Note: The amber LED on the
drive might also be lit if the
drive slot has a blank drive tray
inserted in certain ESM firmware
versions.
Drive not certified Verify that the drive option and
FRU part number is supported
by the DS3950 with EXP395s
storage subsystem. (For FRU part
numbers, see “Parts listing” on
page 100, or the DS3950 RFAs).
Controller firmware
is not at the
minimum version
to support the drive Upgrade the controller firmware
to the latest version from the
IBM Support web site.
ESM (Fault
LED) ESM failure Replace the ESM. See your
controller documentation for
more information. See Chapter 5,
“Installing and replacing
components,” on page 65 for
more information.
ESM (Port
Bypass LED) No incoming signal
detected Reconnect the SFP modules and
the fibre-channel cables. Verify
the input and output SFP and
the FC loopback and
female-female LC connector.
Replace either input or output
SFP modules or fibre channel
cables as necessary.
Incorrect enclosure
speed setting When connecting the EXP395 to
the existing operating redundant
drive loop with a different speed
setting, the port goes into bypass
mode because mixing different
speed enclosures within the same
redundant drive loop/channel is
not supported.
ESM failure If the ESM Fault and Service
Action LEDs are lit, replace the
ESM.
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IBM System Storage DS3950 EXP395 Storage Expansion Enclosure: Installation, User’s, and Maintenance Guide