Technical Product Specification

Hard Disk Drive Support Intel® Server System SR1560SF TPS

Revision 1.2

Intel order number D92959-006

The SAS interface uses the proven SCSI command set to ensure reliable data transfers, while

providing the connectivity and flexibility of point-to- point serial data transfers. The SAS interface

provides improved performance, simplified cabling, smaller connectors, lower pin count, and

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 software RAID implementation capable of supporting the following RAID

levels: 0, 1, and 10. RAID level 5 is supported with the addition of an optional RAID Activation

Key (iPN - AXXRAKSW5). 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 Corporation* provides these device

drivers.

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