Two Infiniband Switches In an Exalogic Rack are showing Different Outputs for the Ibswitch Command

Asset ID:	1-72-1421441.1
Update Date:	2017-07-11
Keywords:

Solution Type Problem Resolution Sure

Solution 1421441.1 : Two Infiniband Switches In an Exalogic Rack are showing Different Outputs for the Ibswitch Command

Applies to:

Infiniband Cable - Version Not Applicable to Not Applicable [Release N/A]
Oracle Exalogic Elastic Cloud X2-2 Hardware - Version X2 and later
Information in this document applies to any platform.
***Checked for relevance on 17-Jan-2014***

Symptoms

Running the 'ibswitches' command on 2 infiniband switches in an Exalogic rack results in different output for each switch.

Cause

A bad port connection between an infiniband switch and the Exalogic rack's Cisco switch is the cause.

Physically examining the infiniband switches reveals that the link light for a port on one of the infiniband switches is off.

Solution

If the 'ibswitches' command is run on multiple infiniband switches and the outputs of the 'ibswitches' commands show inconsistencies:

Examine the LED's associated with the ports on the infiniband switches; and
If an LED for a port on one of the infiniband switches is not lit, reconnect the cable for the connection between the non-lit port and the Cisco switch;
After observing that the non-lit LED is now lit, re-run the 'ibswitches' command on the infiniband switches to verify that the outputs are no longer inconsistent.

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