Product Features; Clustering For High-Availability - Novell OPEN ENTERPRISE SERVER 2 SP 2 - CLUSTER SERVICES 1.8.7 FOR LINUX Manual

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example, you can move applications, Web sites, and so on to other servers in your cluster without

waiting for a server to fail. This helps you to reduce unplanned service outages and planned outages

for software and hardware maintenance and upgrades.

Novell Cluster Services clusters provide the following benefits over standalone servers:

Increased availability of applications, services, and data

Improved performance

Lower cost of operation

Scalability

Disaster recovery

Data protection

Server consolidation

Storage consolidation

1.3 Product Features

Novell Cluster Services includes several important features to help you ensure and manage the

availability of your network resources:

Support for shared SCSI, iSCSI, or Fibre Channel storage subsystems. Shared disk fault

tolerance can be obtained by implementing RAID on the shared disk subsystem.

Multi-node all-active cluster (up to 32 nodes). Any server in the cluster can restart resources

(applications, services, IP addresses, and file systems) from a failed server in the cluster.

A single point of administration through the browser-based Novell iManager cluster

configuration and monitoring GUI. iManager also lets you remotely manage your cluster.

The ability to tailor a cluster to the specific applications and hardware infrastructure that fit

your organization.

Dynamic assignment and reassignment of server storage as needed.

The ability to use e-mail to automatically notify administrators of cluster events and cluster

state changes.

A Novell Cluster Services for Linux cluster consists of the following components:

2 to 32 OES 2 Linux servers, each containing at least one local disk device.

Novell Cluster Services software running on each Linux server in the cluster.

A shared disk subsystem connected to all servers in the cluster (optional, but recommended for

most configurations).

Equipment to connect servers to the shared disk subsystem, such as one of the following:

High-speed Fibre Channel cards, cables, and switches for a Fibre Channel SAN

Ethernet cards, cables, and switches for an iSCSI SAN

SCSI cards and cables for external SCSI storage arrays

OES 2 SP2: Novell Cluster Services 1.8.7 for Linux Administration Guide

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