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| INFORMATION |
| Published : |
Jan 11, 2010 |
| Length : |
15 |
| Type : |
White Paper |
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| Overview : |
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Availability is a growing concern for all customers. Information, and the databases underlying that information, have become more and more integral to business processes and products. Simply put, windows of downtime for planned maintenance no longer exist. This informative white paper explains how the new Oracle Real Application Clusters (RAC) One Node offers enhanced high availability for single-instance databases, protecting from both planned and unplanned downtime. Read ahead to see how Oracle RAC One Node provides:
. Always on single-instance database services
. Better consolidation for database servers
. Enhanced server virtualization
. Lower cost development and test platform for full RAC
In addition, you'll learn how it allows customers to consolidate database storage, standardize their database environment, and, should the need arise, upgrade to a full multi-node Oracle RAC database without downtime or disruption. |
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| Browse Related Categories : |
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Application Integration
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Application Performance Management
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Backup And Recovery
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Business Activity Monitoring
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Clustering
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Configuration Management
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Database Development
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Oracle
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Storage Management
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Oracle Real Application Clusters (RAC) One Node is a new option to Oracle Database
11g Release 2 Enterprise Edition. It provides enhanced high availability for singleinstance databases, protecting from both planned and unplanned downtime. Oracle RAC
One Node provides:
. Always on single-instance database services
. Better consolidation for database servers
. Enhanced server virtualization
. Lower cost development and test platform for full RAC
In addition it allows customers to consolidate database storage, standardize their
database environment, and, should the need arise, upgrade to a full multi-node Oracle
RAC database without downtime or disruption.
Oracle Real Application Clusters One Node
With Oracle Database 11g Release 2, Oracle introduces Oracle Real Application Clusters
(RAC) One Node, a new feature that provides always on availability for single-instance
databases (i.e., databases that run on only one server at a time).
Availability is a growing concern for all customers. Information, and the databases underlying that information, have become more and more integral to business processes and products.
Windows of downtime for planned maintenance no longer exist, as users all over the world are dependent on access to data. To continue to meet service levels with reduced staffing requires an infrastructure that automatically recovers from failures without administrator intervention, and allows administrators to perform maintenance without downtime.
Oracle RAC One Node leverages the capabilities of Oracle RAC to extend Oracle RAC's
availability benefits to single-instance databases. Single-instance databases can now enjoy online maintenance, including online server and storage replacement, online operating system upgrades and patching, online database patching, and automatic recovery from software and hardware failures.
Oracle RAC One Node provides more than just always on availability. Its ability to online
migrate instances from one server to another enable customers to better consolidate their
databases, vastly improving on the rudimentary server consolidation offered by server
virtualization. When used in conjunction with server virtualization products like Oracle VM,Oracle RAC One Node enhances the benefits of virtualization, leveraging the strengths of both products.
The figure below represents a typical RAC One Node deployment.
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