||Oracle Tips by Burleson
Chapter 2 Grid, Utility
Computing and Clusters
First, the processing power can be harnessed by
running an application on available machines in the grid rather than
locally. Second, the user application can be designed to split its
computation tasks or work and execute them in parallel running on
different machines or processors. The third, involves running an
application many times on many different machines in the grid. Grid
architecture provides a suitable software and framework to make this
Data and Storage
The next significant resource that an
application would like to utilize is the data or storage resource.
The data is available in a variety of forms such as structured
databases, data files, XML documents and others. Storage is attached
to various machines (or servers) in the form of directly attached
file systems, or network attached file systems (NFS). By providing a
robust storage array attached to multiple servers in the grid
environment and creating a unified file system that is attached to
multiple servers, the data or files can be made accessible to many
servers and thereby to the user applications. Users do get local
access to such data. It also becomes easier for the users to
reference the data in the grid.
In the case of structured database systems, the
data can be made available in two forms: the Clustered Database and
the Federation of Databases. In a clustered solution, the same data
can be accessed by referring to any server in the cluster
configuration. Federation of database is more like an association of
data to form a comprehensive database. In a single query, user
application is able to access multiple database resources.
For more information,
see the book
Grid and Real Application Clusters 30% off if you
buy it directly from Rampant TechPress .
Written by top Oracle
experts, this RAC book has a complete online code depot with
ready to use RAC scripts.
can offer world-class remote Oracle database support at super-affordable prices.
Oracle DBA service provides 100% of the remote Oracle database administration
needs for your company, and includes 24x7 access to our staff of 100% OCP
Certified Oracle DBAs.
We require a 12 month service commitment and include the following services:
- Initial configuration review and problem identification
- Installation of Oracle statistics collection mechanisms and quarterly
database growth summaries
- Hourly monitoring of your Oracle database for pending problems
- Periodic performance analysis & identification of tuning activities
- Twenty Four hour Oracle emergency support
- Reporting and resolving all serious Oracle alert log messages
- Free use of the BC
- Quick response emergency support for production database outages
- Four hours of free remote DBA support every month. You can use these free
hours for any DBA activity, including database analysis, system design,
production migrations or personal mentoring.
information, please visit
www.oracle-training.cc or email