RedHat multipath multipath file is roughly divided into two parts
multipath and device portions.
Use mpathconf program set up multiple paths, it can create multipath configuration file /etc/multipath.conf.
If /etc/multipath.conf file already exists, mpathconf program will edit the file.
If /etc/multipath.conf file does not exist, mpathconf program will use /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf file as the starting file.
If /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf file does not exist, then the program will start from scratch mpathconf /etc/multipath.conf file.
The following command enables the multipath configuration file and starts multipathd daemon.
#mpathconf --enable --with_multipathd y
The default configuration file /etc/multipath.conf default configuration file All configuration is generally annotated
To manually configure the following is a template parameter needs to be adjusted as needed
multipaths {
multipath {
WWID 36485702100cc1b75d48fde8700000008
user_friendly_names yes
Alias "oceanstrorage"
path_grouping_policy Multibus
path_selector "round-Robin 0 "
the failback immediate
rr_weight Priorities
the no_path_retry. 5
}
}
Devices {
Device {
Vendor" HUAWEI "
Product" Ocean Storage V3 "
the path_grouping_policy Multibus
the path_checker readsector0
path_selector" round-Robin 0 "
hardware_handler" 0 "
the failback 15
rr_weight Priorities
the no_path_retry Queue
}
}