dm-multipath do not autoscan partition table

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Hello

I am wondering if anyone este tried this.

I Have few CentOS 6.2 systems that are running KVM virtual machines. As 
storage backend for them I use 2 iscsi targets (based on openindiana). 
For accessing these disks I use dm-multipath, since I use 2 separate 
networks for access. For these reasons I want host system to force not 
to scan dm-multipath disks for partitions. According to multipath.conf 
man there should be feature to do it

defaults {
         find_multipaths yes
         user_friendly_names no
#       features "1 no_partitions"

}

However when I try this error:

Dec  8 21:45:40 vnode4 kernel: device-mapper: table: 253:41: multipath: 
Unrecognised multipath feature request
Dec  8 21:45:40 vnode4 kernel: device-mapper: table: 253:41: multipath: 
Unrecognised multipath feature request
Dec  8 21:45:40 vnode4 kernel: device-mapper: table: 253:9: multipath: 
Unrecognised multipath feature request
Dec  8 21:45:40 vnode4 kernel: device-mapper: table: 253:9: multipath: 
Unrecognised multipath feature request

Do you have similar experience, or is there better way how to solve 
this ?

Regards

Juraj
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