[rhel6] Multipath and internal RAID

[Nicolas C.]

Hello,

I've installed Red Hat Enterprise Linux 6 on a Dell PowerEdge M610 blade 
server connected to a SAN. It works but the internal RAID of the server 
(not multipathed) is appearing on the "multipath -ll" output :

mpathc (3600508e000000000108c991ede8ca20f) dm-0 Dell,VIRTUAL DISK
size=136G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
   `- 2:1:0:0 sdi 8:128 active ready  running

I tried to blacklist it by adding this at the /etc/multipath.conf, but 
it has no effect :

blacklist {
        wwid 3600508e000000000108c991ede8ca20f
}

I have no problem with RHEL5.

Any idea?

Thanks,

Nicolas