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Remote DBA Support and also author of Online Oracle Trainings courses. ">Installation and configuration Oracle has introduced a number of challenges. This is a new facility, some of these challenges, such as calculating disk space, the exposure of data files, the choice of operating system and database block sizes, and determine the maximum number of files data, require decisions about the parameters that are appropriate for your environment. Even before I had the opportunity to use their database and find relevant information. The seriousness of making the right decisions is growing with high availability requirements, where the impact of a wrong decision is much more serious because these decisions are binding throughout the life of the database. Fixed a bad decision and involves a long time without rarely tolerated. Installation and configuration is very critical from the perspective of high availability, since they constitute the basis for all adjustments and perform routine maintenance. At most sites with high availability, data-takes a back seat availability, recovery and maintenance. Their enthusiasm is to determine the high availability and sustainability of the site, however, sometimes DBAS Database nearly useless in terms of performance. This means that the main results of the inspections and corrective measures can be implemented when downtime and defeat the whole purpose to ignore the performance targets installation and configuration. Instead of focusing solely on availability and downtime due because of such short-sightedness during the initial configuration, it is always better to be a goal as important as performance, usability, and better maintenance. In specific cases where the performance targets in direct conflict with availability, it is reasonable to allow the latter to win. So how DBAs tend to do things right the first time? How can they ever managed to get everything set up and works well "out of the box"? The bad news is they cannot! High availability uptime can be achieved simply by installing a vanilla. It can only be achieved by following a combination of Oracle and good recommendations to improve these practices based on DBA experience in similar environments. But, unfortunately, the Oracle DBA is ignoring the recommendations during the installation process of Oracle. After the installation process, the database will not be affected by performance issues, but when at times, some mysterious performance issues, which are not easily understood. All of these performance issues to present a false choice of the basic parameters of the installation of the Oracle database. Take for example the selection of parameters DB_BLOCK_SIZE wrong during installation, the database storage of information, database systems, or DSS. Changing this parameter requires a long period of inactivity, it is necessary to re-build a database from scratch. Gitesh Trivedi has 14+ years of experience and providing Remote DBA Support and also author of Online Oracle Trainings courses.
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