Multipath I/O
MPIO 3.0 is released and available today. It includes support for Windows 2008 on x86 - on x32 or x64 servers. Microsoft clusters are also supported.
Volume Shadow Copy Services
Likewise, Volume Shadow Copy Services (VSS) 3.1 is released.
Release notes are available for review on the support site:
http://datacore.com/support/support_home.asp