HP StorageWorks Scalable File Share - Manual (Page 237)

Troubleshooting the Quadrics interconnect 9–13
9.23 Troubleshooting the Quadrics interconnect
This section provides some useful tips for investigating and solving potential problems with a Quadrics
interconnect. In this section, the term node is used to refer to any system that is connected to the interconnect:
a node can be a server in the HP SFS system, or a client node. The term nodeset is used to describe the
collection of nodes that are on an interconnect.
9.23.1 Start, stop, and loading problems
When a Quadrics interconnect is used, the associated software modules on the nodes are the
qsnet
and
elan
modules.
To check the status of the
qsnet
software on a node, enter the following command:
# /sbin/service qsnet status
To stop the
qsnet
software on a node, enter the following command:
# /sbin/service qsnet stop
To start the
qsnet
software on a node, enter the following command:
# /sbin/service qsnet start
To determine whether the
qsnet
and
elan
modules are loaded on a node, enter the following command:
# /sbin/lsmod
If the modules are loaded, the output is similar to the following:
Module Size Used by Tainted: P
ep 840904 0
rms 50696 0 (unused)
elan4 472880 1 [ep]
elan3 612704 0 [ep]
elan 84912 0 [ep elan4 elan3]
qsnet 103520 0 [ep rms elan4 elan3 elan]
qla2300 446472 0 (unused)
jtag 31728 0 (unused)
dump_gzip 95488 0 (unused)
dump 72344 0 [dump_gzip]
If the modules are not loaded, the output is similar to the following:
Module Size Used by Tainted: P
qla2300 446472 0
jtag 31728 0 (unused)
dump_gzip 95488 0 (unused)
dump 72344 0 [dump_gzip]
When you enter the
/sbin/service qsnet start
command on a node, the
qsnet
and
elan
software modules are automatically loaded on the node. However, if you want to load one of the modules
manually, enter the command shown in the following example, which loads the
ep
module:
# /sbin/modprobe ep