Re: [rhel6] How-to show failed paths with "multipath"

In the newers Suse 11 and Redhat 6, when a path is los, the dead devices
are removed from system, that's what i know


2014-02-28 19:51 GMT+01:00 Nicolas C. <[email protected]>:

> Hello,
>
> With RHEL6 on a SAN environment, is it possible to display dead paths with
> "multipath" ?
>
> This is the output of "multipath -ll" a RHEL4 server :
>
> data (360050768028107fac00000000000009f)
> [size=150 GB][features="1 queue_if_no_path"][hwhandler="0"]
> \_ round-robin 0 [enabled]
>  \_ 3:0:0:2 sde 8:64  [failed][faulty]
>  \_ 4:0:0:2 sdm 8:192 [failed][faulty]
> \_ round-robin 0 [prio=20][active]
>  \_ 3:0:1:2 sdi 8:128 [active][ready]
>  \_ 4:0:1:2 sdq 65:0  [active][ready]
>
> We can see failed paths. And this is the output on RHEL6 :
>
> sata (360050768028107fac0000000000000d0) dm-3 IBM,2145
> size=170G features='1 queue_if_no_path' hwhandler='0' wp=rw
> `-+- policy='round-robin 0' prio=10 status=active
>   |- 4:0:1:1 sdf 8:80  active ready  running
>   `- 3:0:1:1 sdj 8:144 active ready  running
>
> Increasing the verbose level of "multipath" doesn't work (the
> "/etc/multipath.conf" file is classic on both systems).
>
> Thanks,
>
> Nicolas
>
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