Novell OPEN ENTERPRISE SERVER CLUSTER SERVICES 1.8.2 - ADMINISTRATION, Руководство пользователя, Страница: 9 / 61

Overview
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Overview
Novell
®
Cluster Services
TM
is a server clustering system that ensures high availability and
manageability of critical network resources including data, applications, and services. It is a
multinode clustering product for Linux that is enabled for Novell eDirectory
TM
and supports failover,
failback, and migration (load balancing) of individually managed cluster resources.
1.1 Product Features
Novell Cluster Services includes several important features to help you ensure and manage the
availability of your network resources. These include:
Š
Support for shared SCSI, iSCSI or fibre channel storage area networks.
Š
Multinode 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.
Š
A single point of administration through the browser-based Novell iManager cluster
configuration and monitoring GUI. iManager also lets you remotely manage your cluster.
Š
The ability to tailor a cluster to the specific applications and hardware infrastructure that fit
your organization.
Š Dynamic assignment and reassignment of server storage on an as-needed basis.
Š
The ability to automatically notify administrators through e-mail of cluster events and cluster
state changes.
1.2 Product Benefits
Novell Cluster Services allows you to configure up to 32 Linux servers into a high-availability
cluster, where resources can be dynamically switched or moved to any server in the cluster.
Resources can be configured to automatically switch or be moved in the event of a server failure, or
they can be moved manually to troubleshoot hardware or balance the workload.
Novell Cluster Services provides high availability from commodity components. Lower costs are
obtained through the consolidation of applications and operations onto a cluster. The ability to
manage a cluster from a single point of control and to adjust resources to meet changing workload
requirements (thus, manually “load balance” the cluster) are also important benefits of Novell
Cluster Services.
An equally important benefit of implementing Novell Cluster Services is that you can reduce
unplanned service outages as well as planned outages for software and hardware maintenance and
upgrades.
Reasons you would want to implement Novell Cluster Services include the following:
Š Increased availability
Š
Improved performance
Š Low cost of operation
Š
Scalability
Š Disaster recovery