White Papers

12
Dell EMC PowerVault ME4 Series and Citrix XenServer | H18237
4. Check the Enable multipathing on this server box and click OK.
5. Connect to host via SSH.
6. Open /etc/multipath.conf with your favorite text editor, e.g. vi, and paste the following into the devices
section.
device {
vendor "DellEMC"
product "ME4"
path_grouping_policy "group_by_prio"
path_checker "tur"
hardware_handler "1 alua"
prio "alua"
failback immediate
path_selector "service-time 0"
}
7. To optimize the hosts iSCSI service, edit the /etc/iscsi/iscsid.conf file and set the following values. These
values dictate the failover timeout and queue depth. The values shown serve as a starting point and
might require adjustment depending on the environment.
node.session.timeo.replacement_timeout = 30
node.session.cmds_max = 1024
node.session.queue_depth = 128
8. The server will need to be restarted for multipathing to take effect.