Technical Product Specification

Intel® Server System R2000IP Product Family TPS System Storage and Peripheral Drive Bays

Revision 1.1

 Cables from the SAS Expander to the hot swap backplane must be connected in order:

B – E for 16-drive configurations, and B – G for 24 drive configurations.

 The SCU_0 or 3G SAS/SAS RAID (0-3) connector is cabled to the first mini-SAS

connector on the hot swap backplane

 The SCU_1 or 3G SAS/SAS RAID (4-7) connector is cable to Connector A on the SAS

expander card.

For storage configurations that require utilizing a hard disk drive as the boot device, the

system must be cabled as follows to ensure a boot device is found and for contiguous drive

mapping (0-16 or 0-24).

 The SCU_0 (0-3) connector on the server board is cabled to the first mini-SAS connector

on the hot swap backplane

 The SCU_1 (4-7) connector on the server board is cable to Connector_A on either the

24-port or 36-port SAS expander card.

 Cables from the SAS Expander to the hot swap backplane must be connected in

order: B – F on the 24-port expander card, and B – G on the 36-port expander card.

Note: Current SCU controller design limitations prevent any hard drive attached to a SAS

expander card from being a boot device when both SCU connectors are attached to the SAS

expander card.

Please reference the Intel

Server System R2000IP Product Family Service Guide for cable

routing diagrams illustrating a variety of different storage configurations.

5.5.3 Protocol Support

Each port on the expander cards support SAS devices, SATA II devices, or both using SSP,

SMP, STP, and SATA II as follows:

 Serial SCSI Protocol (SSP) to enable communication with other SAS devices.

 SATA II Protocol to enable communication with other SATA II devices.

 Serial Management Protocol (SMP) to share topology management information with

expanders.

 Serial Tunneling Protocol (STP) support for SATA II through expander interfaces.

 SAS protocol, described in the Serial Attached SCSI (SAS) Standard, version 2.0

 SFF-8485 protocol, using the Serial GPIO (SGPIO) interface provided by the expander.

5.5.4 Features

 Supports both Serial Attached SCSI and Serial ATA devices

 6.0 Gbit/s, 3.0 Gbit/s, and 1.5 Gbit/s data transfer rate

 SFF-8087 mini-SAS connectors

 Output mini-SAS connectors support sideband SGPIO as per SFF-8485 specification

 Provides a low-latency connection to create and maintain transparent access to each

connected SAS/SATA physical drive

 Staggered spin-up

 Hot Plug

 Native Command Queuing

 Allows multiple initiators to address a single target (in a fail-over configuration)