VII
ORACLE DISK MANAGEMENT
All Oracle professionals recognize that the I/O against the physical disk is the most intense component of Oracle processing. In fact, the majority of all Oracle tuning is done with the direct intent of reducing physical disk I/O. Physical disk I/O is the major contributor to all Oracle performance problems, and anything the Oracle administrator can do to understand the I/O subsystems of the Oracle database will have a direct and immediate impact on the performance of the database.
With today’s sophisticated disk arrays such as EMC disks, Oracle administrators are challenged more than ever before to understand the internal architectures of these disk I/O subsystems and ensure that they make proper usage of Oracle’s ...
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