Apple on Tuesday introduced a new RAID card to its
Xserve. The new card costs $999 and is available as a Configure To Order (CTO) option when you buy a new Xserve.
The Xserve RAID card replaces the built in Serial ATA (SATA)/Serial Attached SCSI (SAS) controller board ordinarily in the Xserve, and does not use a PCI Express (PCIe) expansion slot.
Using Mac OS X Server, Xserve administrators can set up a software-based RAID for the Xserve’s internal hard disk drives — it can accommodate up to four internal drives. The Xserve also works with Xserve RAID, an external RAID system that provides up to 10.5 terabytes (TB) of storage capacity, connected to the Xserve using 2 Gigabit Fibre Channel.
With the new internal RAID card, the Xserve can be configured to serve up its internal storage in a hardware RAID — RAID Level 0, 1 and 5 is supported. It also includes a built-in battery that can protect the RAID cache for up to 72 hours.