450GB 15K rpm Fibre Channel Add-on EVA Hard Disk Drive (AG804A) - Specifications   Support for new low cost FATA 250 GB disk driveSupport for new 300 GB High Performance drivesVCS Firmware improvements include Cross Vraid Snapshots and Snap clone, enablement of VCS enhanced rolling upgrades and other availability enhancementsProvides broader server supportEnhanced Operating system supportVCS v3.020 provides Cross Vraid snap functionality (changing the Vraid type when Snapping or Snap cloning); Cross Vraid Snapshot and Snapclones within the same Vdisk group; Cross Vraid Snapclones Across Vdisk groups (including standard Vdisk and FATA Vdisk groups)