Oracle Exalogic Elastic Cloud User Manual

Performs diagnostics upon the InfiniBand fabric and reports status. See Perform
Diagnostics on the InfiniBand Fabric in a Multirack Configuration.
3. ibcheckerrors
Checks the entire InfiniBand fabric for errors. See Check for Errors in the
InfiniBand Fabric in a Multirack Configuration.
14.6.1 Discover the InfiniBand Network Topology in a Multirack Configuration
To discover the InfiniBand network topology and build a topology file which is used
by the OpenSM Subnet Manager, run the following command on the command-line
interface (CLI) of the spine switch:
# ibnetdiscover
The output is displayed, as in the following example:
The topology file is used by InfiniBand commands to scan the InfiniBand fabric and
validate the connectivity as described in the topology file, and to report errors as
indicated by the port counters.
# Topology file: generated on Sat Apr 13 22:28:55 2002
#
# Max of 1 hops discovered
# Initiated from node 0021283a8389a0a0 port 0021283a8389a0a0
vendid=0x2c9
devid=0xbd36
sysimgguid=0x21283a8389a0a3
switchguid=0x21283a8389a0a0(21283a8389a0a0)
Switch 36 "S-0021283a8389a0a0" # "Sun DCS 36 QDR switch localhost" enhanced port 0
lid 15 lmc 0
[23] "H-0003ba000100e388"[2](3ba000100e38a) # "nsn33-43 HCA-1" lid 14 4xQDR
vendid=0x2c9
devid=0x673c
sysimgguid=0x3ba000100e38b
caguid=0x3ba000100e388
Ca 2 "H-0003ba000100e388" # "nsn33-43 HCA-1"
[2](3ba000100e38a) "S-0021283a8389a0a0"[23] # lid 14 lmc 0 "Sun DCS 36 QDR switch
localhost" lid 15 4xQDR
Note:
The actual output for your InfiniBand fabric will differ from that in the
example.
14.6.2 Perform Diagnostics on the InfiniBand Fabric in a Multirack Configuration
To perform a collection of tests on the InfiniBand fabric and generate several files that
contain parameters and aspects of the InfiniBand fabric, run the following command
on the command-line interface (CLI) of the spine switch:
# ibdiagnet
In the following example, the ibdiagnet command is minimized to determine which
links are underperforming:
# ibdiagnet -lw 4x -ls 10 -skip all
Loading IBDIAGNET from: /usr/lib/ibdiagnet1.2
Verify the InfiniBand Fabric in a Multirack Configuration
14-6 Oracle Exalogic Elastic Cloud Machine Owner's Guide

Oracle Exalogic Elastic Cloud Specifications

General

Brand	Oracle
Model	Exalogic Elastic Cloud
Category	Server
Language	English