Using XVM volume manager for IRIX multipathing failover

Host failover using IRIX multipathing requires the use of the XVM volume manager.

When you use the XVM volume manager to manage host failover for IRIX clusters, you must configure the failover.conf file so that IRIX points I/O operations to the correct path.

Figure 1 provides an example of the process that you can use to configure the failover.conf file.

Figure 1. Configuring XVM volume manager

SGI# /usr/bin/fx -x -d /dev/rdsk/WWNN/lunXvol/PORTNAME
					r		<press enter> (repartition)
					o		<press enter> (option disk)
					(xfs)	<press enter>	(xsf filesystem)
					y		<press enter> (yes)
					...	<press enter>	(previous selection)
					exit	<press enter>	

create /etc/failover.conf

SGI# xvm
xvm: local> label -name NAME/dev/rdsk/WWNN/lunXvol/PORTNAME
xvm: local> slice -volname VOLNAMEphys/NAME
xvm: local> exit

SGI# mkfs -t xfs /dev/lxvm/VOLNAME

SGI# mkdir /DIRECTORY_NAME

SGI# vi /etc/fstab
			(for example: /dev/lxvm/VOLNAME/DIRECTORY_NAME xfs rw 0 0)

SGI# mount -a

Where

WWNN is the worldwide port name
X is the LUN number
PORTNAME is the port ID
NAME is your assigned nickname for the disk
VOLNAME is the volume ID
DIRECTORY_NAME is the name of the directory where you are storing the failover.conf file