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Knowledge Base

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:  176  |   Downloads:  0  |   Author:  c00230043  |   Document ID:  EKB1000019084


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.