[dm-devel] path_checker within multipath {}

Matthew Kent matt at bravenet.com
Thu Nov 27 19:47:54 UTC 2008


Am I missing something obvious here?

/usr/share/doc/device-mapper-multipath-0.4.7/multipath.conf.annotated
says this should work, and I can't find a RHEL 5 issue for it:

My config says:

multipaths {
        multipath {
                wwid "22263000155ada9e9"
                path_grouping_policy failover
                path_checker tur
        }
        multipath {
                wwid "36090a018108277e8ed92e4e9cee1733e"
                path_grouping_policy multibus
                path_checker readsector0
        }
}

but multipathd -k"show conf" says:

multipaths {
        multipath {
                wwid 22263000155ada9e9
                path_grouping_policy failover
        }
        multipath {
                wwid 36090a018108277e8ed92e4e9cee1733e
                path_grouping_policy multibus
        }

and multipath -v3 shows them all

sdb: path checker = readsector0 (config file default)

while the grouping policy seems to work, 

pgpolicy = multibus (LUN setting)

I'm sure I can use 'tur' on both multipaths via the defaults {} section
and be fine, but from the docs (even checked the RHEL 5.3 beta SRPM)
this should work.
-- 
Matthew Kent \ SA \ bravenet.com




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