from reading through things. Also I could adjust the polling_interval back to the default of 5
my multipath.conf default looks like (as mentioned before) this:
========= /etc/multipath.conf ================
defaults {
multipath_tool "/sbin/multipath -v0"
udev_dir /dev
polling_interval 2
selector "round-robin 0"
path_grouping_policy failover
getuid_callout "/sbin/scsi_id -g -u -s /block/%n"
path_checker readsector0
prio_callout "/bin/true"
features "0"
rr_min_io 2
rr_weight priorities
failback immediate
no_path_retry fail
user_friendly_name yes
}
========= ============= ================
I do not replace the rr_min_io value within my multipath device sections so a map looks like this when complete.
0 33576960 multipath 0 0 2 1 round-robin 0 1 1 8:80 2 round-robin 0 1 1 8:176 2
^
|_ this value is way off from the default of 1000
I know this is a highly user specific value however do most people stay around the default value for this setting.
Specifically I'm looking for input on an io value for db volumes.
Also would all this be a non issue if I set rr_weight to uniform instead of priorities ( which I think evals to (0*2) in my case ).
Any help appreciated..
--
:wq!
kevin.foote
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