Mmh, new Xserve ... Promise

[Giaguara]

Finally

The Promise VTrak E-Class RAID Subsystem delivers outstanding performance, reliability, and expansion for video and server applications. Configure up to sixteen 750GB 7200-rpm SATA or 300GB 15,000-rpm SAS drives in a 3U rack-optimized enclosure for up to 12TB of raw capacity on one or more RAID sets. Promise RAID is an ideal storage solution for direct-attached or SAN-based server and workstation applications, qualified for use with Mac OS X, Mac OS X Server, Final Cut Studio 2, and Xsan 2.

http://www.apple.com/server/storage/
And much more http://www.promise.com/apple/

[Satcomer]

Well it looks like the Xserve RAID is gone now too.. This does is not a very good commitment to a product for businesses on a product that is only a few years old.