[dm-devel] Pathvec messages

Benjamin Marzinski bmarzins at redhat.com
Wed Jul 30 17:37:02 UTC 2008


On Tue, Jul 29, 2008 at 03:43:32PM -0400, Sajesh Singh wrote:
>    Benjamin Marzinski wrote:
> 
>  On Tue, Jul 29, 2008 at 01:34:47PM -0400, Sajesh Singh wrote:
> 
> 
> 
>     Benjamin Marzinski wrote:
> 
>   On Tue, Jul 29, 2008 at 12:51:42PM -0400, Sajesh Singh wrote:
> 
> 
>   Whenever I run the multipath -v3 command on a EL 5 server I see the
>   following line in the output for each device.
> 
>   sdc: not found in pathvec
> 
> 
>   This simply means that the device is not already stored in multipath's
>   in memory list of discovered paths. It's completely normal to see this
>   for your all your devices when running the multipath command.
> 
>   -Ben
> 
> 
> 
>     That being said, when does the device make it into the memory list of
>     discovered paths ?
> 
> 
>  Immediately after multipath realizes that it's not there.  In
>  multipathd, which uses the same code, you will see this when multipath
>  first spots a new device.  After that, the device will be list of
>  discovered paths.
> 
>  -Ben
> 
> 
>    So running multipath -v3 multiple times and seeing the output of "not
>    found in pathvec" is merely informational?
> 

Correct.

-Ben
> 
> 
> 
>   I have seen questions on this before, but no answer as to what this means.
>   Is the message merely information or does the multipath configuration need
>   to be changed?
> 
>   Regards,
> 
>   Sajesh
> 
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