Overview - Dell PowerVault NX1950 Installation And Troubleshooting Manual

Cluster systems with dell|equallogic ps series storage array

Hide thumbs Also See for PowerVault NX1950:

Table of Contents

Overview

The Dell™ PowerVault™ NX1950 cluster solution with Dell|EqualLogic

storage array combines Microsoft

2003 clustering with a highly available and scalable Dell|Equallogic PS Series

storage array. Server clusters based on Microsoft

provide availability for applications through failover. The following list

summarizes server cluster features:

•

Provides features that can be used for databases, e-mail services, line of

business (LOB) applications, and custom applications.

•

Includes Windows Unified Data Storage Server 2003.

•

Provides high availability and server consolidation.

•

Requires the use of shared storage.

NOTE:

Throughout this document, PowerVault NX1950 storage system refers to the

individual storage unit and PowerVault NX1950 cluster solution refers to the

configuration of the storage unit along with the storage arrays.

In a PowerVault NX1950 cluster solution configuration, if the hardware or

software fails and causes a service failure, the cluster automatically restarts

the failed service on a functional cluster node. This service failover capability

ensures that no data is lost, and there is little disruption to users. When the

issue is corrected, the cluster can re-balance the services across all functional

nodes. The following figure illustrates a service failover on a typical cluster

configuration in which all nodes are running different services.

Figure 1-1 shows that Node A fails over to Node B.

Windows

Unified Data Storage Server

Cluster Service (MSCS)

Overview

Table of Contents