This driver is new in the Solaris Express 3/06 release.
The Serial Advanced Technology Attachment (SATA) HBA framework project delivers a generic SATA framework for the Marvell 88SX60xx, Marvell 88SX50xx, and the Silicon Image 3124 controllers. The new SATA HBA drivers and framework provide native support for accessing SATA controllers and disks. These drivers provide features, such as hot plugging and queueing of multiple commands that are unique to SATA. These SATA drivers interface with the sd (target disk) driver and support the sd functionality.
For more information, see the following man pages: