IBM FlashSystem 900, Service Manual

Page: 348 / 546

3746-900 MAPs
MAP 2720: 3746-900 Bit Error Rate Validation
Symptom Explanation Conditions That Could Cause This Symptom
ESCA reported problem
Host reporting error on
Host/3746-900 fiber optic link
¹
ESCP
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ESCC
¹
Fiber optic
001
You are here under the guidance of the Enterprise System Connection Link Fault Isolation ZZ22-9473
manual.
¹
You should be logged ON on the service processor console. If not go to “Console Use for
maintenance” on page 1-1 for logging ON and return here.
¹
On the "MOSS-E View" window, double click on the 3746-900 on which you want to work.
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On the "3746-9x0 Menu" window, click on the "Configuration Management" option.
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Double click on the "Manage ESCON Processors" option.
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On the "ESCP Management-Resource Selector" window, select the desired ESCP then click on "OK".
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The "ESCON Configuration-Lines" window is displayed.
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Click on the "Options" (in the action bar). Then click on the "Manage ESCC status" option.
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The "ESCC Status Management" window is displayed.
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Look the bit error count displayed for the ESCC.
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This bit error count is reset every five minutes and, if the maximum count value (15) is reached, an
SRC is generated. If the maximum count is reached before the five minutes the counter stays at that
value until the reset.
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Record the bit error rate counter.
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Click on the "Refresh" (in the action bar) then click on the "Permanent Refresh" option.
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Wait five minutes.
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Record the new bit error rate counter.
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Click on the "Refresh" (in the action bar). Then click on the "Stop Permanent Refresh" option.
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Click on the "Options" (in the action bar). Then click on the "Return" option.
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On the "ESCON Configuration-Lines" window, click on the "Options" (in the action bar). Then click on
the "Exit" option.
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On the "Confirmation" window, click on "OK".
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Return to the "3746-9x0 Menu" window using the "Cancel" key.
¹
Return or refer to the Enterprise System Connection Link Fault Isolation ZZ22-9473 manual to con-
tinue the problem determination.
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3746-900: Service Guide