Creating Datastore partition

Hello,

I have been looking for a solution for creating a vmware datastore,
I've found some EE topics
(like this http://www.experts-exchange.com/Software/VMWare/Q_23428667.html?sfQueryTermInfo=1+creat+datastor+esx+vmkfstool) but no luck.

Then I followed this topic:
http://communities.vmware.com/thread/61570

[root@ROOTSERVER3 root]# fdisk -l

Disk /dev/sda: 145.4 GB, 145492017152 bytes
255 heads, 63 sectors/track, 17688 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sda1   *         1        13    104391   83  Linux
/dev/sda2            14       650   5116702+  83  Linux
/dev/sda3           651     17352 134158815   fb  Unknown
/dev/sda4         17353     17688   2698920    f  Win95 Ext'd (LBA)
/dev/sda5         17676     17688    104391   fc  Unknown
/dev/sda6         17353     17421    554179+  82  Linux swap
/dev/sda7         17422     17675   2040223+  83  Linux

Partition table entries are not in disk order

Disk /dev/sdb: 249.3 GB, 249376538624 bytes
255 heads, 63 sectors/track, 30318 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sdb1   *         1     30318 243529303+  83  Linux

[root@ROOTSERVER3 root]# esxcfg-vmhbadevs -a
vmhba1:0:0     /dev/sda
vmhba1:1:0     /dev/sdb

[root@ROOTSERVER3 root]# vmkfstools -C vmfs3 -S "sda3" vmhba1:0:0
Creating vmfs3 file system on "vmhba1:0:0" with blockSize 1048576 and volume label "sda3".
Usage: vmkfstools -C vmfs3 /vmfs/devices/disks/vmhbaW:X:Y:Z
Error: Invalid handle

Is this the right command: vmkfstools -C vmfs3 -S vmhba1:0:0:3 ? (I want to be sure first)

Thanks in advanceStart Free Trial