IBM FlashSystem 900, Service Manual

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3746-900 MAPs
001 (continued)
Is the "ESCC x Status" line displaying: ENABLED?
Yes No
002
Go to Step 004
003
¹
The ESCC is enabled. Return to the "MOSS-E View" window.
¹
Go to “CE Leaving Procedure” on page 4-55 to return the machine to the customer. If the problem
persists contact your support.
004
Is the "fiber status IN" with LIGHT OFF indication displayed?
Yes No
005
Go to Step 007
006
Suspect a problem in the neighbor. Refer to
Problem Determination Procedures, Maintenance Information
for Enterprise Systems Connection Links SY27-2597.
007
Is the "fiber status In" with OFFLINE SEQUENCES indication displayed?
Yes No
008
Go to Step 010
009
Check the indication displayed on the "fiber status OUT". Then take the appropriate action described in
the following table.
010
¹
The fiber status IN indicates: ESCC DOWN, NO INFO.
¹
Check the indication displayed on the "fiber status OUT". Then take the appropriate action described
in the following table.
(Step 010 continues)
Fiber Status OUT
indication Action to Perform
ESCP EMITS OLS Suspect a problem in the neighbor. Refer to Problem determination Proce-
dures, maintenance Information for Enterprise Systems Connection Links
SY27-2597.
Fiber Status OUT
indication Action to Perform
ESCP FORCED OLS Suspect a problem in the ESCC. Go to “Run Diagnostics” on page 1-4 to run
diag on the suspected FRU.
ESCC ERROR / NO INFO Suspect a problem in the ESCC,then in the ESCP Go to “Run Diagnostics” on
page 1-4 to run diag on the suspected FRUs.
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3746-900: Service Guide