IBM TotalStorage SAN140M, Installation And Service Manual

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125 Chapter 3: Maintenance analysis procedures (MAPS)
2
Fan status polling is temporarily disabled and status values for one or
more fans exceed a set threshold. This indicates possible fan
degradation or failure.
Is this event code a recurring problem?
YES NO
↓
Monitor fan operation or recording of additional failure event
codes. Exit MAP.
3
Visual inspection (amber LED is lit) or event codes indicate one or
more cooling fans failed.
Replace the fan ( RRP: Fan module on page 235).
• The procedure is concurrent and performed while the product is
operational.
• Perform a data collection as part of FRU replacement ( Collecting
maintenance data on page 186).
NOTE: Do not remove a fan module unless a replacement FRU is available.
To avoid product overheating, a fan module must be replaced within five
minutes.
Was the maintenance action successful?
806 Critically hot temperature warning (SBAR assembly
thermal sensor). Go to step 8 .
807 SBAR assembly shutdown due to thermal violation. Go to step 8 .
810 High temperature warning (CTP card thermal sensor). Go to step 5 .
811 Critically hot temperature warning (CTP card thermal
sensor). Go to step 5 .
812 CTP card shutdown due to thermal violation. Go to step 6 .
850 System shutdown due to CTP card thermal violations. Go to step 6 .
Table 13 MAP 400: Event codes (Continued)
Event
code
Explanation Action