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Re: Fw: [dm-devel] Multipath and SAN Fabric failover



dm-devel-bounces redhat com wrote on 09/10/2006 03:23:55 PM:

> Heya,
> > Just to make sure that I've covered everything I partitioned the
> > disk as /dev/sdc and then used lvm2 command:
> >   
> sorry, I've missed that before. /dev/sdc is only _one_ of your paths
> to a LUN. multipath will take the right 2 of those sd* to create one
> dm device file. Have a look if there's somethign in /dev/mapper, also
> check your udev rules, you need this line in there:
> 
> KERNEL=="dm-[0-9]*", PROGRAM="/sbin/devmap_name %M %m", NAME="%k", 
> SYMLINK="%c"
> 
> most distros have a line like
> #KERNEL=="dm-[0-9]*",           NAME=""
> in there, you need to comment it out if you add the lien above.
> 
> 
> Hope that helped,
> 
> best regards
> 
> Bernd Zeimetz

Bernd,

I haven't had a chance to work on this for a couple of days but I did
get do some reading.  I'm wondering if I'm using the correct driver for
this.  I have been trying to use the QLogic driver shipped with SLES.
Should I be using the non-EMC driver from the Qlogic website?

Regards,
John


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