Opensm; Srp - Qlogic InfiniPath Install Manual

3 – Software Installation

SRP

3.10

OpenSM

OpenSM is an optional component of the OpenFabrics project that provides a
subnet manager for InfiniBand networks. You do not need to use OpenSM if any of
your InfiniBand switches provide a subnet manager.
Note that after installing the opensm package, OpenSM is configured to be on on
the next machine reboot. Install it on the machine that will act as a subnet manager
in your cluster, or if it has been installed on more than one machine, use the
chkconfig command (as root) to disable it on all the nodes except for the one on
which it will be used. Use this method:
# chkconfig opensmd off
The command to enable it on reboot is:
# chkconfig opensmd on
You can start opensmd without rebooting your machine as follows:
# /etc/init.d/opensmd start
and you can stop it again like this:
# /etc/init.d/opensmd stop
If you wish to pass any arguments to the OpenSM program, modify the file:
/etc/init.d/opensmd
and add the arguments to the "OPTIONS" variable. Here is an example:
# Use the UPDN algorithm instead of the Min Hop algorithm.
OPTIONS="-u"
3.11
SRP
SRP stands for SCSI RDMA Protocol. It was originally intended to allow the SCSI
protocol to run over InfiniBand for SAN usage. SRP interfaces directly to the Linux
file system through the SRP Upper Layer Protocol. SRP storage can be treated as
just another device.
In this release SRP is provided as a technology preview. Add ib_srp to the module
list in /etc/sysconfig/infinipath to have it automatically loaded.
NOTE:
3-22
SRP does not yet work with IBM Power Systems.This will be fixed in a
future release.
Q
IB0056101-00 C