3.7.0 HP StorageWorks HP Scalable NAS File Serving Software installation guide HP Scalable NAS for Linux (AG513-96004, October 2009)

Emulex HBA drivers
Locate the line for your FibreChannel Adapter device driver in the pcitable file
and then add the following options inside the double quotes:
lpfc_nodev_tmo=28 lpfc_lun_queue_depth=16 lpfc_discovery_threads=32
Also remove the comment character (#) if it appears at the beginning of the line.
For example:
0x10df 0xfe00 lpfc lpfc-8.2.0.22_p1-3 "lpfc_nodev_tmo=28
lpfc_lun_queue_depth=16 lpfc_discovery_threads=32" LP11000 Fibre Channel Adapter
Update the multipathd file
On Red Hat systems, you will need to add the ulimit parameter to the /etc/
rc.d/init.d/multipathd file. Locate the start() function in the file and add
the following line:
ulimit -n 4096
Following is an example of the updated file:
start() {
test -x $DAEMON || exit 5
echo -n $"Starting $prog daemon: "
ulimit -n 4096
daemon $DAEMON
RETVAL=$?
[ $RETVAL -eq 0 ] && touch $lockdir/$prog
echo
}
Unloading drivers
When Device Mapper Multipath is configured on the cluster, it is necessary to remove
the multipath devices before using the pmxs unload command, which unloads the
cluster service and HBA drivers. To remove the multipath devices, first stop HP Scalable
NAS:
/etc/init.d/pmxs stop
Next, run this command:
dmsetup remove_all
Configure Linux Device Mapper MPIO70