Sas 9305-24I Host Bus Adapter User Guide; Overview; Features; Functional Descriptions - Broadcom SAS 9305-24i User Manual

Broadcom SAS 9305-24i PCI Express to 12Gb/s SAS Host Bus Adapter User Guide
January 27, 2016

SAS 9305-24i Host Bus Adapter User Guide

1

Overview

The PCI Express
HBA, provides high-performance internal storage connectivity for servers and workstations. The 12Gb/s SAS HBA
provides twenty-four lanes of 12Gb/s SAS connectivity and is matched with eight lanes of PCIe 3.0 8Gb/s performance.
The low-profile design of the SAS HBA includes a full-height mounting bracket and a low-profile mounting bracket that
create a universal fit for any server. The 12Gb/s SAS HBA is developed on the Fusion-MPT-based SAS 3224 controller
that integrates the latest enhancements in PCIe 3.0 technology and 12Gb/s SAS technology.
2

Features

This section lists the Broadcom 12Gb/s SAS HBA features.
Implements one SAS 3224 twenty-four-port 12Gb/s SAS to PCIe 3.0 controller

Supports eight-lane, full-duplex PCIe 3.0 performance

Supports twenty-four internal 12Gb/s SATA+SAS ports

Supports SATA link rates of 3Gb/s and 6Gb/s

Supports SAS link rates of 3Gb/s, 6Gb/s, and 12Gb/s

Provides twenty-four x4 internal mini-SAS HD connectors (SFF-8643)

Supports passive copper cable, active copper cable, and optical cable

Supports up to 1024 SATA or SAS end devices

Offered with a full-height bracket and a and a low-profile vented bracket

Provides one heartbeat LED

Provides a universal asynchronous receiver/transmitter (UART) debug/diagnostic port

3

Functional Descriptions

3.1

PCI Express Interface

PCIe is a high-speed standard local bus for point-to-point interfacing of I/O components to the processor and the
memory subsystems in high-end computers and servers. The Broadcom SAS 3224 controller chip contains the PCIe
functionality for the 12Gb/s SAS HBA. The SAS 3224 controller chip connects to the PCIe bus and generates timing and
protocol in compliance with the PCIe specifications.
The 12Gb/s SAS HBA supports eight-lane PCIe performance up to 64Gb/s single direction and 128Gb/s dual direction.
3.2

SAS-3 Interface

The Broadcom SAS 3224 controller chip contains the SATA+SAS functionality for the 12Gb/s SAS HBA with SAS
performance of 1200 MB/s per port in each direction.
® ®
(PCIe )-to-Serial Attached SCSI (SAS) host bus adapter (HBA), referred to as the Broadcom 12Gb/s SAS
Broadcom Ltd.
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SAS 9305-24i Host Bus Adapter User Guide
Overview