Using HP Insight Control for Linux to Manage HP ProLiant DL785 G6 Servers running Oracle VM

o Add the following for 4x00, EVA6x00, and EVA8x00 virtual disks:
Device
{
vendor "(COMPAQ|HP)"
product "HSV1[01]1|HSV2[01]0|HSV300|HSV4[05]0"
getuid_callout "/sbin/scsi_id -g -u -s /block/%n"
prio_callout "/sbin/mpath_prio_alua /dev/%n"
hardware_handler "0"
path_selector "round-robin 0"
path_grouping_policy group_by_prio
failback immediate
rr_weight uniform
no_path_retry 18
rr_min_io 100
path_checker tur
}
o Add the following for MSA2012fc, MSA2212fc, and MSA2012i virtual disks:
Device
{
vendor "HP"
product "MSA2[02]12fc|MSA2012i"
getuid_callout "/sbin/scsi_id -g -u -s /block/%n"
hardware_handler "0"
path_selector "round-robin 0"
path_grouping_policy multibus
failback immediate
rr_weight uniform
no_path_retry 18
rr_min_io 100
path_checker tur
}
3. Ensure that dm_multipath is loaded on each server as follows:
# lsmod | grep dm_multipath
If it is not loaded, enter the following:
# modprobe dm_multipath
# service multipathd restart
4. Ensure that the multipath daemon is configured to start on boot on each server as follows:
# chkconfig multipathd on
5. Verify that multipath is configured on each server as follows:
# dmsetup ls
# multipath –l
If successful, an entry similar to the following is listed under /dev/mpath:
mpath0 mpath1 mpath2
Entering ls –l on the directory displays the following:
lrwxrwxrwx 1 root root 7 Nov 10 18:12 mpath0 -> ../dm-0
lrwxrwxrwx 1 root root 7 Nov 10 18:12 mpath1 -> ../dm-1
lrwxrwxrwx 1 root root 7 Nov 10 18:12 mpath2 -> ../dm-2
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