Dell EqualLogic PS6510X 하드웨어 매뉴얼 - 페이지 5

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Introduction

A Dell Failover Cluster combines specific hardware and software components to provide enhanced availability for

applications and services that run on your cluster. A Failover Cluster reduces the possibility of any single point of failure

within the system that can cause the clustered applications or services to become unavailable. It is recommended that

you use redundant components like servers, storage power supplies, connections between the nodes and the storage

array(s), and connections to client systems or other servers in a multi-tier enterprise application architecture in your

cluster.

This document provides information and specific configuration tasks that enable you to configure your Failover Cluster

with Dell EqualLogic PS Series Internet Small Computer System Interface (iSCSI) storage array(s).

For more information on deploying your cluster with Microsoft Windows Server 2003 operating systems, see the

Failover Clusters with Microsoft Windows Server 2003 Installation and Troubleshooting Guide at support.dell.com/

manuals.

For more information on deploying your cluster with Windows Server 2008 operating systems, see the

Clusters with Microsoft Windows Server 2008 Installation and Troubleshooting Guide at support.dell.com/manuals.

For a list of supported operating systems, hardware components, and driver or firmware versions for your Failover

Dell Cluster Configuration Support Matrices at dell.com/ha.

Cluster, see the

Cluster Solution

Your cluster supports a minimum of two nodes to a maximum of either eight nodes (with Windows Server 2003 operating

systems) or sixteen nodes (with Windows Server 2008 operating systems) and provides the following features:

•

Gigabit and 10 Gigabit Ethernet iSCSI technologies

•

High availability of resources to network clients

•

Redundant paths to the shared storage

•

Failure recovery for applications and services

•

Flexible maintenance capabilities, allowing you to repair, maintain, or upgrade a node or storage array without

taking the entire cluster offline

The iSCSI protocol encapsulates iSCSI frames that include commands, data, and status into Transmission Control

Protocol/Internet Protocol (TCP/IP) packets to be transported over Ethernet networks. The iSCSI frames are sent

between the Microsoft iSCSI Initiator that resides in the host and the iSCSI target, which is a storage device.

Implementing iSCSI in a cluster provides the following advantages:

Geographic distribution Wider coverage of Ethernet technology allows cluster nodes and storage arrays to be

located in different sites.

Low cost for availability Redundant connections provide multiple data paths that are available through inexpensive

TCP/IP network components.

Connectivity

A single technology for connection of storage array(s), cluster nodes, and clients.

Dell

Dell Failover