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Posts: 3
Registered: ‎08-28-2008

brocade 8gb switch in IBM Bladecenter, large "enc out"

Hi,

We are facing some problems using the Brocade 8gb switch (5470) which is inside the IBM Bladecenter chassis.

We have a chassis with 4 of these Brocade switches configured as Access Gateway mode with the latest firmware (6.2.0c equivalent for bladecenter). Each of the 14 blades have 4 HBA ports connecting to the 4 access gateways.

We have 2 uplinks trunked using N_port trunking to Brocade DCX. The F_port to N_Port mapping is set to Auto Balancing.

We find that when we reboot a blade the "enc out", "link fail" and "link loss" counter in porterrshow increase on MANY of the internal 14 ports. The OS running on the blade reports a "loss in path" and the ports are reported as "Marginal Ports" on the switch logs.

We are trying to find out why a reboot on one blade is causing the errors on the many of the other ports?

Where do we need to look next?

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