Hi,
We have a SLES 11 SP1 running with following snippet in multpath.conf
##########################
device {
vendor "IBM"
product "1818"
path_grouping_policy group_by_prio
prio rdac
getuid_callout "/lib/udev/scsi_id -g -u -d /dev/%n"
polling_interval 5
path_checker rdac
path_selector "round-robin 0"
hardware_handler "1 rdac"
failback immediate
features "2 pg_init_retries 50"
no_path_retry 30
rr_min_io 100
}
#################################
But when we see "multipath -ll" output we see:
mpathca (3600a0b8000475c52000006a04b60f1d9) dm-38 IBM,1818 FAStT
size=2.0G features='3 queue_if_no_path pg_init_retries 50' hwhandler='1 rdac'
wp=rw
|-+- policy='round-robin 0' prio=6 status=active
| |- 4:0:5:1 sdcz 70:112 active ready running
| `- 5:0:5:1 sddl 71:48 active ready running
`-+- policy='round-robin 0' prio=1 status=enabled
|- 4:0:4:1 sdcx 70:80 active ghost running
`- 5:0:3:1 sddh 70:240 active ghost running
So, my question is : even if we mention
features "2 pg_init_retries 50"
why are we seeing " features='3 queue_if_no_path pg_init_retries 50'
hwhandler='1 rdac' wp=rw" in the multipath -ll output ?
1) Where is this "3" coming from ? and what is it's significance ??
2) Is this "3" next to the features in "multipath -ll" output as expected (even
though we mention "2 pg_init_retries 50" ) in our multipath.conf ??
(We've rebooted and regenerated multipath maps multiple times by "multipath -F"
and then "multipath" )....but we still see this "discrepancy" (of "2" vs "3") ?
Will appreciate if someone can explain us.
Thanks,
Dharmesh.
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