[Linux-cluster] question about creating partitions and gfs

[Jason]

so still following instructions at 
http://www.gyrate.org/archives/9
im at the part that says

"# ccs_tool create /root/cluster /dev/iscsi/bus0/target0/lun0/part1"

in my config, I have the dell PERC 4/DC cards, and I believe the logical drive showed up as 
/dev/sdb 

so do I need to create a partition on this logical drive with fdisk first before I run

 ccs_tool create /root/cluster  /dev/sdb1

or am I totally off track here?

i did ccs_tool create /root/cluster /dev/sdb
and it seemed to work fine, but doesnt seem right..

Jason