[dm-devel] Re: Device maps missing ?

[christophe varoqui]

Hello,

have you tried to force a policy (-p multipath flag) and/or to feed the
array in the config file ? If you still got no success, please compile
multipath with DEBUG defined and send to output.

regards,
cvaroqui

Le mer 25/08/2004 à 12:17, Chambers, Darren ( Retail ) a écrit :
> Hello Christophe,
> 
> I’m hoping you’ll be able to help me with multipath.
> 
> Our Linux server has two QLogic 2200 fibre cards plugged into two
> fabrics. A single LUN ( 1 x open-E from an XP1024 ) has been allocated
> through both fabrics.
> 
> All the relevant programs seemed to have compiled & installed ok but
> the boot / messages log fills up with a whole bunch of errors, the
> logs are attached.
> 
> When I run multipath –v I get the following output which would seem to
> indicate that device maps are not getting created, yet multipath is
> aware of the single lun, dual pathing.
> 
> Kernel: 2.6.8
> 
> Udev: 030 – passes all tests
> 
> Multipath: 0.2.8
> 
> It’d be great if you could point me in a direction.
> 
> Sorry to be a pain, I’m more used to multipathing in HP-UX & Veritas,
> I’m just more interested in multipathing in Linux ! :o)
> 
> <<boot.msg.gz>>     <<var_log_messages.txt.gz>> 
> 
> 
> lsscsi
> 
> [3:0:0:1]    disk    HP       OPEN-E           2108  /dev/sdb
> 
> [4:0:0:1]    disk    HP       OPEN-E           2108  /dev/sdc
> 
> multipath –v
> 
> #
> 
> # all paths :
> 
> #
> 
> R450_00010693_3875__ (3 0 0 1) sdb [ready ] [OPEN-E          ]
> 
> R450_00010693_3875__ (4 0 0 1) sdc [ready ] [OPEN-E          ]
> 
> #
> 
> # all multipaths :
> 
> #
> 
> R450_00010693_3875__ [OPEN-E          ]
> 
>  \_(3 0 0 1) sdb [ready ]
> 
>  \_(4 0 0 1) sdc [ready ]
> 
> #
> 
> # device maps :
> 
> #
> 
> Regards
> 
> Darren Chambers
> 
> 
> 
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