[rhel6] Multipath and internal RAID

[Nicoas C.]

Le 05/06/2011 12:55, Nicolas C. a écrit :
> 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.

Reply to myself : multipath is loaded early in the boot process, the 
multipath.conf is embedded in the initrd.

After changes in the multipath.conf file, initrd must be rebuilded with 
"dracut".