Device Mapper Multipath Configuration

1. Setup Steps

1.1 install and load device mapper (not necessary in RHEL58)

a) install Device Mapper Multipath/DMMP

yum install device-mapper device-mapper-multipath

b) load and check device mapper and multipath modules

modprobe dm-multipath
modprobe dm-round-robin
lsmod | grep md

c) start the multipathd service

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