Infrastructure Software

I've got a fresh install of Oracle Linux 6.1, I'm trying to configure the disks ready to use with ASM.

# oracleasm configure
ORACLEASM_ENABLED=true
ORACLEASM_UID=oracle
ORACLEASM_GID=dba
ORACLEASM_SCANBOOT=true
ORACLEASM_SCANORDER=""
ORACLEASM_SCANEXCLUDE=""

# oracleasm status
Checking if ASM is loaded: yes
Checking if /dev/oracleasm is mounted: yes

I'm testing withthe following mulipath device :-
mpathd (360060160d9b12200c4640ab38416e111) dm-2 DGC,RAID 5
size=1.0G features='1 queue_if_no_path' hwhandler='1 emc' wp=rw
|-+- policy='round-robin 0' prio=-1 status=active
| |- 0:0:2:0 sdg 8:96 active undef running
| |- 0:0:3:0 sdi 8:128 active undef running
| |- 1:0:2:0 sdo 8:224 active undef running
| `- 1:0:3:0 sdq 65:0 active undef running
`-+- policy='round-robin 0' prio=-1 status=enabled
|- 0:0:0:0 sdc 8:32 active undef running
|- 0:0:1:0 sde 8:64 active undef running
|- 1:0:0:0 sdk 8:160 active undef running
`- 1:0:1:0 sdm 8:192 active undef running

I've partioned this device and mounted it as a file system(just to check I can access it):-

ll /dev/mapper/mpath*
lrwxrwxrwx. 1 root root 7 Nov 24 11:01 /dev/mapper/mpathd -> ../dm-2
lrwxrwxrwx. 1 root root 7 Nov 24 11:31 /dev/mapper/mpathdp1 -> ../dm-5
lrwxrwxrwx. 1 root root 7 Nov 24 11:01 /dev/mapper/mpathe -> ../dm-3

But when I try and create an asm disk it fails :-

# /etc/init.d/oracleasm createdisk TEST1 /dev/mapper/mpathdp1
Marking disk "TEST1" as an ASM disk: [FAILED]
# tail /var/log/oracleasm
Disk "TEST1" does not exist or is not instantiated
Writing disk header: done
Instantiating disk: oracleasm-instantiate-disk: Unable to create ASM disk "TEST1": Permission denied
failed
Clearing disk header: done

I don't know and can't find what permissions I'm missing - any help appreciated.

Thanks