Intel SRCSAS18E User Guide - Page 24

• Two internal connectors • Support for RAID levels 0, 1, 5, 10, and 50 • Advanced array configuration and management utilities • 32 Kbyte NVRAM for storing RAID system configuration information; the firmware is stored in flash ROM for easy upgrades. SAS Features The following list describes the SAS features: • Provides eight fully independent phys • Each phy supports 3.0 Gbit/s and 1.5 Gbit/s SAS data transfers • Supports SSP to enable communication with other SAS devices • Supports SMP to communicate topology management information • Provides a serial, point-to-point, enterprise-level storage interface • Simplifies cabling between devices • Provides a scalable interface that supports up to 128 devices through multiple expanders • Supports wide ports consisting of 2, 3, or 4 phys within a single quad port • Supports narrow ports consisting of a single phy • Transfers data using SCSI information units SATA Features The following list describes the SATA features: • Supports SATA data transfers of 3.0 Gbits/s and 1.5 Gbits/s • Supports STP data transfers of 3.0 Gbits/s and 1.5 Gbits/s • Provides a serial, point-to-point storage interface • Simplifies cabling between devices • Eliminates the master-slave construction used in parallel ATA • Allows addressing of multiple SATA targets through an expander if using SATA 2.0compliant hard disk drives • Allows multiple initiators to address a single target (in a fail-over configuration) through an expander PCI Performance This RAID controller uses an Intel® IOP333 500 MHz I/O processor. 5 Intel® RAID Controller SRCSAS18E User's Guide