[CentOS] Mount Openfiler created XFS volumes

Greetings,

I have a 500Gig hdd with and XFS filesystem created by openfiler (which
strangely switched from lovely CentOS for reasons best known to them). I fired
up a Centos box with this hdd. I then did

yum install kmod-xfs.i686 xfsdump.i386 dmapi xfsprogs

and it wnt through.

But when I try to mount this volume 

mount -t xfs  /dev/hdd1 /mnt/test

I get the error:

mount: /dev/hdd1 already mounted or /mnt/test busy

I then try 

xfs_admin -l /dev/hdd1

The results being:

xfs_admin: unexpected XFS SB magic number 0x00000000
xfs_admin: read failed: Invalid argument
xfs_admin: data size check failed
cache_node_purge: refcount was 1, not zero (node=0xa058670)
xfs_admin: cannot read root inode (22)
label = "(null)"


Sure I'm missing something very basic here...

Can somebody point my mistake? and some clues to solve this problem...

TIA

Regards

Rajagopal