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link from S5600 storage to fiber channel switch is nonstandard and FC interface link is abnormal

Publication Date:  2012-09-18  |   Views:  250  |   Downloads:  0  |   Author:  SU1000864011  |   Document ID:  EKB1000015080

Contents
Issue Description Alarm Information Handling Process Root Cause Suggestions

Issue Description

FC0 and FC1 of S5600 storage daughter board link different two Brocade 30E switch, and FC port of storage array is switching in ‘connected/non-connected’. Port state is on insync from Brocade 300E manage interface. Switch can link server HBA, storage array can link HBA directly without switch.

Alarm Information

none

Handling Process

1. Modify port speed of S5600 and switch to 2Gb/s, abnormal.
2. Modify port mode of S5600 and switch to L_port, abnormal.
3. Cut one of the two FC0 and FC1 link, normal.
4. FC0 and FC1 of the same daughter board link FC0 and FC 2, normal.

Root Cause

 S5600 storage can link HBA directly, and switch can link HBA. The problem is link between switch and S5600. As usual it is because storage can not match switch mode successfully, or because of physical link.

Suggestions

On S5600 daughter board, adjacent 2 FC port is the same FC chip. Do not link 2 FC port of the same chip to switch ,but to server is ok.
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