Control The Infiniband Fabric; Clear Error Counters; Clear Data Counters; Reset A Port - Oracle Exalogic Elastic Cloud Owner's Manual

15.2 Control the InfiniBand Fabric

This section contains the following topics:
•

Clear Error Counters

•

Clear Data Counters

•

Reset a Port

• Set Port Speed
• Disable a Port
• Enable a Port
15.2.1 Clear Error Counters
If you are troubleshooting a port, the perfquery command provides counters of
errors occurring at that port. To determine if the problem has been resolved, you can
reset all of the error counters to 0 with the ibclearerrors command.
On the command-line interface (CLI), run the following command:
# ibclearerrors
The output is displayed, as in the following example:
## Summary: 5 nodes cleared 0 errors
#
15.2.2 Clear Data Counters
When you are optimizing the InfiniBand fabric for performance, you might want to
know how the throughput increases or decreases according to changes you are
making to the fabric and Subnet Manager. The ibclearcounters command enables
you to reset the data counters for all ports to 0.
On the command-line interface (CLI), run the following command:
# ibclearcounters
The output is displayed, as in the following example:
## Summary: 5 nodes cleared 0 errors
#
15.2.3 Reset a Port
You might need to reset a port to determine its functionality.
On the command-line interface (CLI), run the following command:
# ibportstate lid port reset
Note:
The ibcheckstate command requires time to complete, depending upon
the size of your InfiniBand fabric. Without the -v option, the output contains
only failed ports. The output in the example is only a small portion of the
actual output.
Control the InfiniBand Fabric
Monitor and Control the InfiniBand Fabric 15-11