once you have inserted the Disks and used the HP SMU to configure the Vdisks and volumes, and setup your RAID a useful guide can be found here SMU Guide
on the P2000 you would need to create separate Vdisks say vd01 (RAID 5) and vd02 (RAID 5) then on each vdisk configure your volume.
depending on how you want to connect the P2000 to the ESXI servers i use iscsi cables that plug direct from the ESXI Server's H221 Host Buss Adapterto the P2000. in the vsphere client of web browser, Select your Host>configuration>storageAdapters then in the top right rescan all, this should find your new volumes with separate LUN Numbers, when you add them they should appear as separate data stores
we have it on one of our ESXI host running on an old MSA2000 Stroage array.
Vmware best practice says to have 1 LUN for 1 VMFS however.
hope that helps