Perform Comprehensive Diagnostics For The Entire Fabric; Perform Comprehensive Diagnostics For A Route; Determine Changes To The Infiniband Topology - Oracle Exalogic Elastic Cloud Owner's Manual

Monitor the InfiniBand Fabric

15.1.11 Perform Comprehensive Diagnostics for the Entire Fabric

If you require a full testing of your InfiniBand fabric, you can use the ibdiagnet
command to perform many tests with verbose results. The command is a useful tool to
determine the general overall health of the InfiniBand fabric.
On the command-line interface (CLI), run the following command:
# ibdiagnet -v -r
The ibdiagnet.log file contains the log of the testing.

15.1.12 Perform Comprehensive Diagnostics for a Route

You can use the ibdiagpath command to perform some of the same comprehensive
tests for a particular route.
On the command-line interface (CLI), run the following command:
# ibdiagpath -v -l slid dlid
where slid is the LID of the source node in the fabric, and dlid is the LID of the
destination node.
The ibdiagpath.log file contains the log of the testing.

15.1.13 Determine Changes to the InfiniBand Topology

If your fabric has a number of nodes that are suspect, the osmtest command enables
you to take a snapshot (inventory file) of your fabric and at a later time compare that
file to the present conditions.
Complete the following steps:
Ensure that Subnet Manager is initiated.
1.
On the command-line interface (CLI), run the following command to take a
2.
snapshot of the topology:
# osmtest -f c
For example:
# osmtest -f c
Command Line Arguments
Done with args
Flow = Create Inventory
Aug 13 19:44:53 601222 [B7D466C0] 0x7f -> Setting log level to: 0x03
Aug 13 19:44:53 601969 [B7D466C0] 0x02 -> osm_vendor_init: 1000 pending
umadsspecified
15-8 Oracle Exalogic Elastic Cloud Machine Owner's Guide
Note:
The output in the example is just a portion of the entire file.
Note:
Although this procedure is most useful after initializing the Subnet Manager,
it can be performed at any time.