Intel SR1500 SR1500 Chassis TPS - Page 41

Intel® Server System SR1500AL TPS Peripheral and Hard Drive Support lower power requirements when compared to parallel SCSI. SAS controllers leverage an electrical and physical connection interface that is compatible with Serial ATA technology. The LSISAS1064E supports the Intel® Embedded RAID Technology II solution, which is a highly integrated, low-cost RAID implementation. The runtime operation of the integrated RAID solution is transparent to the operating system. A single firmware build supports all integrated RAID capabilities. For non-RAID SAS configurations, the LSISAS1064E uses the Fusion-MPT* (Message Passing Technology) architecture, which features a performance based message passing protocol that offloads the host CPU by completely managing all I/Os and minimizes system bus overhead by coalescing interrupts. The proven Fusion-MPT architecture requires only thin, easily developed device drivers that are independent of the I/O bus. LSI Logic* provides these device drivers. 5.3.3.1 Features of the LSI SAS1064E SAS and SSP features: • Each phy supports 3.0 Gbit/s and 1.5 Gbit/s SAS data transfers • Provides a serial, point-to-point, enterprise-level storage interface • Supports wide transfers consisting of 2, 3, or 4 phys • Supports narrow ports consisting of a single phy • Transfers data using SCSI information units • Compatible with SATA target devices SATA and STP Features: • Supports 3.0 Gbits/s and 1.5 Gbits/s SATA data transfers • Supports 3.0 Gbits/s and 1.5 Gbits/s STP data transfers Usability features: • Simplifies cabling with point-to-point, serial architecture • Provides drive spin-up sequencing control • Provides up to two LED signals for each SAS/SATA phy to indicate drive activity and faults • Provides an SGPIO interface Revision 1.4 29 Intel order number D31981-008