Note:
Repeat these steps to verify the status of the other gateway switches in your
Exalogic machine.
12.1.4 Start the Subnet Manager Manually
The Subnet Manager (SM) is enabled on the gateway switches in a single Exalogic rack
configuration, by default.
However, if the SM is not running on the InfiniBand switches, you can start and
activate the SM as follows:
1.
On the CLI of a switch, start the SM by running the following command:
# enablesm
2.
Set the SM priority within the command-line interface (CLI) as follows:
# setsmpriority priority
Note:
For information about the switches on which the SM should run in various
rack configurations and the SM priorities for the switches, see Subnet Manager
Operation in Different Rack Configurations.
For example, to set the SM on a gateway switch to priority 5, run the following
command:
# setsmpriority 5
The following output is displayed:
-------------------------------------------------
OpenSM 3.2.6_20090717
Reading Cached Option File: /etc/opensm/opensm.conf
Loading Cached Option:routing_engine = ftree
Loading Cached Option:sminfo_polling_timeout = 1000
Loading Cached Option:polling_retry_number = 3
Command Line Arguments:
Priority = 5
Creating config file template '/tmp/osm.conf'.
Log File: /var/log/opensm.log
-------------------------------------------------
For the changes to take effect, restart the SM as follows:
# disablesm
# enablesm
12.1.5 Check Link Status
After starting the SM, you can verify that the Link LEDs for cabled links are green. If
the Link LED is dark, the link is down. If the Link LED flashes, there are symbol
errors.
To check the link status of the cables:
Using Sun Network QDR InfiniBand Gateway Switches
12-4 Oracle Exalogic Elastic Cloud Machine Owner's Guide
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