Brocade FC Switch Can Cause Link Reset for Credit Recovery on F_Ports (Slow Drain Device) (Doc ID 2029693.1)

Last updated on AUGUST 10, 2015

Applies to:

Brocade DCX Backbone - Version All Versions and later
SPARC T5-2 - Version All Versions and later
Information in this document applies to any platform.

Symptoms

There are several Solaris 10 servers with Oracle Emulex FC HBA LPe16002-M6 connected to the SAN (Brocade switches)
accessing disks and tape devices.

From time to time there are link down / link up messages

Bottleneck detection detects latency towards the device attached to the port. MAPS throws up some events, and as well recovery resets the link, and finally the bottleneck detector announces latency bottleneck is cleared.

 

Changes

FC HBA was replaced and problem persist.

Cause

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