A subnet manager must be running in your environment on your switch or on your hosts. If you are running it host-side, use the following procedure to set it up.
Steps
-
Install the
opensm
package on any hosts that will be running the subnet manager. -
Use the
ibstat -p
command to findGUID0
andGUID1
of the HBA ports. For example:# ibstat -p 0x248a070300a80a80 0x248a070300a80a81
-
Create a subnet manager script that runs once as part of the boot process.
vim /usr/sbin/subnet-manager.sh
-
Add the following lines. Substitute the values you found in step 2 for
GUID0
andGUID1
. ForP0
andP1
, use the subnet manager priorities, with 1 being the lowest and 15 the highest.#!/bin/bash opensm -B -g <GUID0> -p <P0> -f /var/log/opensm-ib0.log opensm -B -g <GUID1> -p <P1> -f /var/log/opensm-ib1.log
-
Create a
systemd
service unit file namedsubnet-manager service
.vim /etc/systemd/system/subnet-manager.service
-
Add the following lines.
[Unit] Description=systemd service unit file for subnet manager [Service] Type=forking ExecStart=/bin/bash /usr/sbin/subnet-manager.sh [Install] WantedBy=multi-user.target
-
Notify
systemd
of the new service.systemctl daemon-reload
-
Enable and start the subnet manager service.
systemctl enable subnet-manager.service systemctl start subnet-manager.service