Hello,  Yes  With Dell PS series sans, model number is not important.   The version of firmware is.   Anyone running Dell PS Series SANs need to be at 6.0,7 or higher to avoid possible issues with VMFS Datastoeres.    Technically, 6.5 is unreleased so compatibility testing isn't finished  Regards, Don 
Are there any known issues for EqualLogic PS4000 in a VMware 6.5 environment? Is it compatible?  Thanks,
VMware