14 Sun StorageTek 2500 Series Array Release Notes • April 2007
Workaround – For non-critical events, collect the support data and find the
corresponding event in the MEL log. For critical events, the third amber LED lights
on the front of the controller with the failed battery.
A Bad SFP May Not Generate a Fault Indicator
Bug 6514739 – If a bad SFP is inserted in the FC port of a 2540 array, there may not
an indication in the fault list that it is bad.
Certain failure modes of an SFP may not be detected by the array firmware
immediately upon insertion and the management software could report the link
state as optimal.
However, when you initiate I/O on the channel with the damaged SFP, it will be
reported as failed.
Workaround – Check the fault LED and link LED for link failure. Check the event
log for a failure event at the time of the SFP insertion and when you initiate I/O.
Over-temp Condition Results In PCU Failure Events and LED Fails to
Light
Bug 6514846 and 6514877– Over-temperature condition results in Power Fan CRU
failed alarms. The front overtemp LED fails to light but the front panel amber LED
does come on.
The controller firmware is set to report a temperature warning when any
temperature sensor reaches 62 degrees. A temperature critical condition is reported
at 67 degrees.
The power supply firmware will report the power supply as "failed" when it
internally detects that the ambient temperature has reached 55 degrees. The
controller firmware will report that failure status from the power supply, even
though it is the temperature is below its usual threshold.
Workaround – Perform the following:
1. Check the temperature in the environment where the array is located and adjust to
a cooler setting if necessary.
2. If the environmental temperature is adequate but the event log indicates a
temperature in the Power/Fan CRU of 55 degrees or greater and if the problem
persists for greater than 24 hours, contact support.
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