HP StorageWorks Device Mapper Multipath Enablement Kit for HP StorageWorks Disk Arrays installation and reference guide (AA-RW8RE-TE, June 2009)

Following is a sample multipath.conf file (for RHEL5) with parameters to support EVA 4000 as
a storage controller:
defaults
{
/dev
5
"round-robin 0"
failover
"/sbin/scsi_id -g -u -s /block/%n"
"/bin/true"
tur
100
uniform
immediate
18
yes
udev_dir
polling_interval
selector
path_grouping_policy
getuid_callout
prio_callout
path_checker
rr_min_io
rr_weight
failback
no_path_retry
user_friendly_names
}
multipaths
{
multipath
{
123456789987654321
multibus
tur
"round-robin 0"
wwid
path_grouping_policy
path_checker
path_selector
}
multipath
…….{
for other target…...
}
multipath
…….{
for other target…...
}
}
devices
{
device
{
Using DM Multipath18