Fujitsu Siemens Computers MegaRAID 320, Руководство пользователя

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MegaRAID 320 Storage Adapters User’s Guide 4-1
Copyright © 2003 by LSI Logic Corporation. All rights reserved.
Chapter 4
Installing and Configuring
Clusters
This chapter explains how clusters work and how to install and configure
them. It has the following sections:
•
Section 4.1, “Overview”
•
Section 4.2, “Benefits of Clusters”
•
Section 4.3, “Installation and Configuration”
•
Section 4.4, “Cluster Installation”
•
Section 4.5, “Installing SCSI Drives”
Note: The MegaRAID 320-2, -2X, and -4X storage adapters
support clustering; the MegaRAID 320-1 does not.
4.1 Overview
A cluster is a grouping of two independent servers that can access the
same shared data storage and provide services to a common set of
clients (servers connected to common I/O buses and a common network
for client access).
Logically, a cluster is a single management unit. Any server can provide
any available service to any authorized client. The servers must have
access to the same shared data and must share a common security
model. This generally means that the servers in a cluster have the same
architecture and run the same version of the operating system.