Start the Subnet Manager

If you have no Subnet Managers other than the one within the management controller, you can set the Subnet Manager priority to the lowest value. If you have other Subnet Managers in your InfiniBand fabric, you must decide which is to be the master Subnet Manager. The master Subnet Manager has the highest priority. All other Subnet Managers are slave Subnet Managers, and must have a lower priority.

1. Identify the prerequisite and subsequent installation tasks that you must perform in conjunction with this procedure.

   See Installation Sequence.

2. Create the root node GUID file.

   See Create the guid.txt File.

3. Create the Subnet Manager configuration file.

   See Create the opensm.conf File.

4. Determine the priority of the Subnet Manager within the management controller.

5. Set the priority of the Subnet Manager:

   # setsmpriority priority

   where priority is 0 (lowest) to 13 (highest). For example, to set the Subnet Manager to priority 13:

   # setsmpriority 13 
   -------------------------------------------------
   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 = 13
    Creating config file template ’/tmp/osm.conf’.
    Log File: /var/log/opensm.log
   -------------------------------------------------
   # 

6. Enable the Subnet Manager:

   # enablesm
   Starting IB Subnet Manager.                                [  OK  ]
   #

7. Attach the InfiniBand cables.

   See Attach the InfiniBand Cables.

Related Information

• Switch Reference, setsmpriority command

• Switch Reference, enablesm command

• Switch Reference, opensm command