Dell PowerEdge T310 Specifikace stáhnout pdf (Strana 41)

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PowerEdge T310 Technical Guide 40

8 Chipset

8.1 Overview

The PowerEdgeT310 planar incorporates the Intel 3420 chipset and the Intel 3420 or Platform Controller

Hub (PCH), a highly integrated I/O controller.

A number of high-level features are supported by the chipset on PowerEdge T310, as detailed in the

following sections.

8.2 Direct Media Interface (DMI)

Direct Media Interface (DMI) is the chip-to-chip connection between the processor and Intel 3420

chipset. This high-speed interface integrates advanced priority-based servicing allowing for concurrent

traffic and true isochronous transfer capabilities. Base functionality is completely software-transparent,

permitting current and legacy software to operate normally.

8.3 PCI Express Interface

The Intel 3420 provides up to 8 PCI Express Root Ports, supporting the PCI Express Base

Specification, Revision 2.0. Each Root Port supports 2.5 GB/s bandwidth in each direction (5 GB/s

concurrent). PCI Express Root Ports 1-4 can be statically configured as four x1 Ports or grouped

together to form one x4 port. Ports 5 and 6 can only be used as two x1 ports.

8.4 SATA Interface

The Intel 3420 has two integrated SATA host controllers that support independent DMA operation on

up to six ports and supports data transfer rates of up to 3.0 Gb/s (300MB/s). The SATA controller

contains two modes of operation—a legacy mode using I/O space, and an AHCI mode using memory

space. Software that uses legacy mode will not have AHCI capabilities.

The Intel 3420 supports the Serial ATA Specification, Revision 1.0a. The Intel 3420 also supports

several optional sections of the Serial ATA II: Extensions to Serial ATA 1.0 Specification, Revision 1.0

(AHCI support is required for some elements).

8.5 Advanced Host Controller Interface (AHCI)

The Intel 3420 provides hardware support for Advanced Host Controller Interface (AHCI), a new

programming interface for SATA host controllers. Platforms supporting AHCI may take advantage of

performance features such as no master/slave designation for SATA devices—each device is treated

as a master—and hardware-assisted native command queuing. AHCI also provides usability

enhancements such as Hot-Plug. AHCI requires appropriate software support (e.g., an AHCI driver)

and for some features, hardware support in the SATA device or additional platform hardware.

8.6 Intel Rapid Storage Technology

The Intel 3420 provides support for Intel Rapid Storage Technology, providing both AHCI (see above

for details on AHCI) and integrated RAID functionality. The industry-leading RAID capability provides

high-performance RAID 0, 1, 5, and 10 functionality on up to 6 SATA ports of Intel 3420. Matrix RAID

support is provided to allow multiple RAID levels to be combined on a single set of hard drives, such as

RAID 0 and RAID 1 on two disks. Other RAID features include hot spare support, SMART alerting, and

RAID 0 auto replace. Software components include an Option ROM for pre-boot configuration and boot

functionality, a Microsoft Windows compatible driver, and a user interface for configuration and

management of the RAID capability of Intel 3420.

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Dell PowerEdge T310 Specifikace Strana 41

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