XenSource signed an important partnership with Symantec about 9 months ago, that would allow us to integrate Symantec Storage Foundation as an included volume manager in XenSource's XenEnterprise product. The deal was based on the realities of the XenSource situation at the time - namely we were an independent company with our own routes to market. The Symantec Storage Foundation would be included for customers at no additional charge, when they purchased XenEnterprise. Also included in XenEnterprise is a standard Linux based volume manager, LVM, as well as storage repositories for VHD based virtual hard disks on NFS, and iSCSI 'LUN per VDI' storage.