You may use the RPM install method or just copy/paste the relevant info from the second section.
Session log of RPM install
# rpm -ivh ddn_mpath_RHEL6_RHEL7-1.6-3.x86_64.rpm Preparing... ########################################### [100%] 1:ddn_mpath_RHEL6_RHEL7 ########################################### [100%] The DDN mpath config file has been installed as /etc/multipath.conf.ddn. Rename this file to /etc/multipath.conf if the file does not already exist. Manually merge the DDN supplied file with /etc/multpath.conf if one is already in use. Please read the DDN Multipath Manual for more information.
Content of /etc/multipath.conf.ddn
Look through the file, copy and paste appropriate sections to /etc/multipath.conf
# cat /etc/multipath.conf.ddn
##############################################
# mpath version: ddn_mpath_RHEL6_RHEL7-1.6-3 #
##############################################
# This is a basic configuration file with some examples, for device mapper
# multipath.
# For a complete list of the default configuration values, see
# /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf.defaults
# For a list of configuration options with descriptions, see
# /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf.annotated
## By default, devices with vendor = "IBM" and product = "S/390.*" are
## blacklisted. To enable mulitpathing on these devies, uncomment the
## following lines.
#blacklist_exceptions {
# device {
# vendor "IBM"
# product "S/390.*"
# }
#}
## Use user friendly names, instead of using WWIDs as names.
defaults {
user_friendly_names no
max_fds 65535
checker_timeout 5
}
##
## Here is an example of how to configure some standard options.
##
#
#defaults {
# udev_dir /dev
# polling_interval 10
# selector "round-robin 0"
# path_grouping_policy multibus
# getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n"
# prio alua
# path_checker readsector0
# rr_min_io 100
# max_fds 8192
# rr_weight priorities
# failback immediate
# no_path_retry fail
# user_friendly_names yes
#}
##
## The wwid line in the following blacklist section is shown as an example
## of how to blacklist devices by wwid. The 2 devnode lines are the
## compiled in default blacklist. If you want to blacklist entire types
## of devices, such as all scsi devices, you should use a devnode line.
## However, if you want to blacklist specific devices, you should use
## a wwid line. Since there is no guarantee that a specific device will
## not change names on reboot (from /dev/sda to /dev/sdb for example)
## devnode lines are not recommended for blacklisting specific devices.
##
blacklist {
# wwid 26353900f02796769
# devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
# devnode "^hd[a-z]"
## Black list for DELL internal system drives
device {
vendor "DELL.*|Dell.*"
product "Universal.*|Virtual.*|PERC|VIRTUAL.*"
}
## Black list for INTEL internal system drives
device {
vendor ".*Adaptec.*"
}
## Black list for HP internal system drives
device {
vendor "^HP.*"
}
}
#multipaths {
# multipath {
# wwid 3600508b4000156d700012000000b0000
# alias yellow
# path_grouping_policy multibus
# path_checker readsector0
# path_selector "round-robin 0"
# failback manual
# rr_weight priorities
# no_path_retry 5
# }
# multipath {
# wwid 1DEC_____321816758474
# alias red
# }
#}
devices {
device {
vendor "DDN"
product "EF3010"
getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n"
prio alua
path_grouping_policy multibus
#polling_interval 10
path_checker tur
failback immediate
rr_weight uniform
rr_min_io 100
no_path_retry fail
hardware_handler "0"
}
device {
vendor "DDN"
product "EF3015"
getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n"
prio alua
path_grouping_policy group_by_prio
#polling_interval 10
path_checker tur
failback immediate
rr_weight uniform
rr_min_io 100
no_path_retry 18
hardware_handler "0"
path_selector "round-robin 0"
}
device {
vendor "DotHill"
product "DH4824"
getuid_callout "/lib/udev/scsi_id --whitelisted --device=/dev/%n"
prio alua
path_grouping_policy group_by_prio
#polling_interval 10
path_checker tur
failback immediate
rr_weight uniform
rr_min_io 100
no_path_retry 18
hardware_handler "0"
path_selector "round-robin 0"
}
device {
vendor "DDN"
product "S2A 9[579]*"
getuid_callout "/lib/udev/scsi_id --page=0x80 --whitelisted --device=/dev/%n"
prio alua
path_grouping_policy group_by_prio
#polling_interval 70
path_checker tur
failback immediate
no_path_retry fail
}
device {
vendor "IBM"
product "DCS9900"
getuid_callout "/lib/udev/scsi_id --page=0x80 --whitelisted --device=/dev/%n"
prio alua
path_grouping_policy group_by_prio
path_checker tur
failback immediate
no_path_retry fail
}
device {
vendor "SGI"
product "DD6A-*-9900"
getuid_callout "/lib/udev/scsi_id --page=0x80 --whitelisted --device=/dev/%n"
prio alua
path_grouping_policy group_by_prio
path_checker tur
failback immediate
no_path_retry fail
}
device {
vendor "DDN"
product "S2A 6620"
path_grouping_policy group_by_prio
prio alua
path_checker tur
getuid_callout "/lib/udev/scsi_id --page=0x83 --whitelisted --device=/dev/%n"
failback immediate
no_path_retry 12
}
device {
vendor "IBM"
product "2851-DR1"
path_grouping_policy group_by_prio
prio alua
path_checker tur
getuid_callout "/lib/udev/scsi_id --page=0x83 --whitelisted --device=/dev/%n"
failback immediate
no_path_retry 12
}
device {
vendor "SGI"
product "DD4A-FC008-6620"
path_grouping_policy group_by_prio
prio alua
path_checker tur
getuid_callout "/lib/udev/scsi_id --page=0x83 --whitelisted --device=/dev/%n"
failback immediate
no_path_retry 12
}
device {
vendor "DDN"
product "SFA 10000"
path_grouping_policy group_by_prio
getuid_callout "/lib/udev/scsi_id --page=0x83 --whitelisted --device=/dev/%n"
path_selector "round-robin 0"
path_checker tur
prio sfa
failback 2
rr_weight uniform
no_path_retry 12
dev_loss_tmo 10
fast_io_fail_tmo 5
}
device {
vendor "SGI"
product "DD6A-IS16K-10000"
path_grouping_policy group_by_prio
getuid_callout "/lib/udev/scsi_id --page=0x83 --whitelisted --device=/dev/%n"
path_checker tur
prio sfa
failback 2
rr_weight uniform
no_path_retry 12
dev_loss_tmo 10
fast_io_fail_tmo 5
}
device {
vendor "DDN"
product "SFA12K-20"
path_grouping_policy group_by_prio
getuid_callout "/lib/udev/scsi_id --page=0x83 --whitelisted --device=/dev/%n"
path_selector "round-robin 0"
path_checker tur
prio alua
failback 2
rr_weight uniform
no_path_retry 12
dev_loss_tmo 10
fast_io_fail_tmo 5
}
device {
vendor "DDN"
product "SFA12K-40|SFA12KX*"
path_grouping_policy group_by_prio
getuid_callout "/lib/udev/scsi_id --page=0x83 --whitelisted --device=/dev/%n"
path_selector "round-robin 0"
path_checker tur
prio sfa
failback 2
rr_weight uniform
no_path_retry 12
dev_loss_tmo 10
fast_io_fail_tmo 5
}
device {
vendor "SGI"
product "DD6A-IS17K-12000"
path_grouping_policy group_by_prio
getuid_callout "/lib/udev/scsi_id --page=0x83 --whitelisted --device=/dev/%n"
path_checker tur
prio sfa
failback 2
rr_weight uniform
no_path_retry 12
dev_loss_tmo 10
fast_io_fail_tmo 5
}
device {
vendor "DDN"
product "SFA7700"
path_grouping_policy group_by_prio
getuid_callout "/lib/udev/scsi_id --page=0x83 --whitelisted --device=/dev/%n"
path_selector "round-robin 0"
path_checker tur
prio alua
failback 2
rr_weight uniform
no_path_retry 12
dev_loss_tmo 10
fast_io_fail_tmo 5
}
device {
vendor "SGI"
product "DD6A-IS17500"
path_grouping_policy group_by_prio
path_selector "round-robin 0"
path_checker tur
prio sfa
failback 2
rr_weight uniform
no_path_retry 12
dev_loss_tmo 10
fast_io_fail_tmo 5
}
device {
vendor "SGI"
product "DD6A-IS7700x"
path_grouping_policy group_by_prio
path_selector "round-robin 0"
path_checker tur
prio alua
failback 2
rr_weight uniform
no_path_retry 12
dev_loss_tmo 10
fast_io_fail_tmo 5
}
device {
vendor "DDN"
product "SFA14K"
path_grouping_policy group_by_prio
getuid_callout "/lib/udev/scsi_id --page=0x83 --whitelisted --device=/dev/%n"
path_selector "round-robin 0"
path_checker tur
prio sfa
failback 2
rr_weight uniform
no_path_retry 12
dev_loss_tmo 10
fast_io_fail_tmo 5
}
}
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