About Your Sas Expander Card; Standard Sas Expander Card Features; Major Components - Adaptec Serial Attached SCSI (SAS) Expander Card Installation And User Manual

3

About Your SAS Expander Card

This section provides an overview of the features of your SAS Expander Card.

Standard SAS Expander Card Features

• Support for both SAS and SATA devices
• 12 Gb/s, 6 Gb/s, 3 Gb/s or 1.5 Gb/s data transfer rate
• Seven internal SFF-8643 and two external SFF-8644 connectors providing 36 SAS/SATA ports
• Supports 4 inputs and 32 outputs configuration
• Output mini-SAS HD connectors support sideband SGPIO per the SFF-8448 specification
• Power from a standard PCI Express x4 connector or RA 4-pin aux power connector
Note: The SAS Expander Card does not support the use of PCIe and aux power
at the same time.
• Low profile and MD2 compliance
• Provides a low-latency connection to create and maintain transparent access to each connected
SAS/SATA physical drive
• Staggered spin-up
• Native Command Queuing
• Allows multiple initiators to address a single target.
• Supports cascaded expander products
• Each port on the expander card supports SAS devices, SATA II devices, or both using SSP, SMP, and
STP
• Serial SCSI Protocol (SSP) to enable communication with other SAS 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-8448 protocol, using the Serial GPIO (SGPIO) interface provided by the expander.
• Enclosure Management
• On-board temperature sensor
• SGPIO

Major Components

• 36-Port 12 Gb/s SAS-3 Expander Chip
• Provides 36 PHYs
• Any PHYs may be combined into wide port(s)
• Any PHY can be SAS or SATA attached
• Supports multiple data rates and auto-negotiation between the following:
• 3.0 Gb/s, 6.0 Gb/s, and 12.0 Gb/s SAS
• 1.5 Gb/s, 3.0 Gb/s, 6.0 Gb/s SATA
• Supports SSP, STP, and SMP
• Supports the SAS protocol described in the Serial Attached SCSI (SAS) Standard, version 3.0r5
• Activity and fault indicators per PHY
• Provides a low-latency connection router to efficiently create and maintain connections
• Supports T10-Based and Phy-Based Zoning for storage partitioning
• Allows any number of phys to be included in a wide port
• Provides up to 12 I2C interfaces
• Flash ROM - A 128-Mbit Quad SPI flash ROM is used to accommodate expander card firmware.
• Heartbeat LED - A green LED provides a heartbeat with a 1 second blink rate to indicate the expander
has booted properly.
• SAS connectors - The AEC-82885T SAS Expander Card provides internal and external SAS connectors
as shown in
Proprietary and Confidential to PMC-Sierra, Inc.
Document No.: CDP-00301-01-A Rev A, Issue
SAS Connectors on page 18.
Serial Attached SCSI (SAS) Expander Card Installation and User's Guide
12