Download directly for more content description... 1. A separate Oracle installation must be performed on each 9i RAC . The Oracle Home is then shared by all 9i RAC nodes. Unlike OCFS and certain other cluster . The Challenge: Providing ease of management for Oracle9i RAC deployments on shared storage clusters Oracle 9i RAC is a scalable, highly-available, clustered database that runs efficiently on Red Hat Enterprise Linux and low-cost servers and storage. In December 2003, Red Hat Enterprise Linux and Oracle RAC set the world record for the TPC-C benchmark, achieving over 1 million transactions per minute on a shared storage cluster of 16 industry servers. Users are scaling Oracle databases without incurring the equipment or support costs of large SMP servers. Managing a shared storage hardware environment required by Oracle9i RAC can be complex. Management issues include 1. A separate Oracle installation must be performed on each 9i RAC node.􀀀 More than 100,000 files must be installed on each node (this includes the Oracle Home and root directories)􀀀 Home and root directories must be separately managed for each node since these directories cannot be shared 2. Unless 9i RAC is deployed on top of a file system, a minimum of nine raw devices (one for each table space) must be managed, plus additional raw devices for user space.􀀀 Raw devices cannot be resized􀀀 Raw devices appear as "unused" space and can be in advertently written over by other applications if proper care is not taken􀀀 Certain advanced Oracle features are not supported on raw disk(ONF, ELT, and I/O fencing for example)

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