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The 4GB cascading optical module and the 8GB one are plugged in the opposite position and lead to start failed

Publication Date:  2012-11-06 Views:  67 Downloads:  0
Issue Description
Start three S5600T, but we can’t power on normally.
Alarm Information
Handling Process
Plug the module in the right interface, and then the system start normally.
Root Cause
The cascading board of the control enclosure is the 4GB optical module, and the 8GB optical module is plugged in the service interface, it will cause the control enclosure can’t be started up normally.
There are obvious markings on the two kinds of optical modules, compare the optical module of the hard disk’s enclosure, and we can identify the 4GB optical module.