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OCP Instructors Guide for Oracle DBA Certification

Chapter 2 - Oracle Database Architectures

Oracle on LINUX Platforms

LINUX combines the ease of use and cost-effectiveness of Intel hardware platforms with the performance, reliability and availability of enterprise-class UNIX servers. If the application requires more processing power, CPUs, memory and disk can be purchased without making a major impact on the business unit’s operating budget. LINUX is designed to be user-friendly and easy to install. LINUX can be installed on a home PC as well as a network server for a fraction of the cost of competing software packages.

Compared to their Windows and UNIX counterparts, the majority of LINUX vendors have only recently begun to expend resources on providing highly available architectures to consumers desiring fault tolerant systems for mission-critical applications. The reasons for this lack of focus are:

  • The LINUX operating system is relatively new and has only become recently popular with corporate consumers. Historically, large corporations have not considered LINUX as a viable corporate operating system.  One can only assume that most corporations felt that anything that was free wasn’t a viable product. Only when Red Hat and other competing vendors began to formalize and “corporatize” their LINUX offerings did corporate consumers begin to consider LINUX as an alternative to Windows and UNIX.
     

  • Consumer perception (or misconception) that the UNIX operating systems are inherently more reliable than their LINUX counterparts resulting in a lack of consumer demand for highly available LINUX servers.
     

  • Market analysis showing that product cost and not high availability being the primary reason consumers choose LINUX environments.
     


The above text is an excerpt from:


OCP Instructors Guide for Oracle DBA Certification
A Study Guide to Advanced Oracle Certified Professional Database
Administration Techniques

ISBN 0-9744355-3-8

by Christopher T. Foot
 

http://www.rampant-books.com/book_2003_2_OCP_print.htm


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