At the moment i've no Ubuntu 12.04 Testmachine at hand. ASAP I'll try
your suggestions. But I don't think, that this is the problem. My Dell
Controller has the following wwid:
36782bcb070070100166a7a1640a66db2 dm-0 DELL,PERC 6/i
size=136G features='0' hwhandler='0' wp=rw
In the Blacklist that
Public bug reported:
Multipath in Ubuntu 12.04 ignores blacklist settings in multipath.conf
In multipath.conf the following blacklist is configured:
blacklist {
wwid 36782bcb070070100166a7a1640a66db2
devnode ^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*
devnode