Installation Configuration linux6 multipath

Installing Multipath Software

Yum-y Install Device-mapper-multipath

Start the daemon process

mpathconf--enable--with_multipath y

Start the multipath process

Service Multipath Start

View Multipath Devices

Multipath-v2

Multipath-ll

Configure MULTIPATHD to make it work, edit/etc/multipath.conf, open the following:

Defaults {

Udev_dir/dev

Polling_interval 10

Selector "Round-robin 0"

Path_grouping_policy Multibus

Getuid_callout "/sbin/scsi_id-g-u-s/block/%n"

Prio_callout None

Path_checker Readsector0

Rr_min_io 100

Max_fds 8192

Rr_weight Priorities

failback Immediate

No_path_retry fail

User_friendly_names Yes

}

Blacklist {

Wwid 26353900f02796769

Devnode "^ (ram|raw|loop|fd|md|dm-|sr|scd|st) [0-9]*"

Devnode "^hd[a-z]"

}

4, and close the following content

#blacklist {

# devnode "*"

#}

#defaults {

# User_friendly_names Yes

28 #}

5. After completion, execute the following command to discover Multipathing:

[Email protected] server]# modprobe Dm-multipath

[Email protected] server]# multipath-f

[Email protected] server]# multipath Dm-multipath

[Email protected] server]# multipath Dm-round-robin

[Email protected] server]# service MULTIPATHD restart

Shutting down MULTIPATHD port monitor: [OK]

Starting daemon MULTIPATHD: [OK]

[Email protected] server]# Multipath-v2

[Email protected] server]# Multipath-ll

Mpath1 (3600d02310000011b16a5d57c6a1bd99a) dm-0 toyou,netstor_isum510

[SIZE=3.3T] [Features=0] [Hwhandler=0] [RW]

\_ Round-robin 0 [Prio=2][ena Bled]

\_ 1:0:0:0 SDB 8:16 [Failed][ready]

\_ 1:0:1:0 SDC 8:32 [Failed][ready]

Installation Configuration linux6 multipath