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Veritas has defined and implemented two libraries:
These two libraries provide a mapping interface to Oracle9i release 2 or a later release. These two libraries serve as a bridge between the Oracle's set of storage APIs (ORAMAP) and Veritas Federated Mapping Service (VxMS), a library that assists in the development of distributed SAN applications that must share information about the physical location of files and volumes on a disk.
With Veritas Storage Mapping option, you can view the complete I/O topology mapping of datafiles through intermediate layers like logical volumes down to actual physical devices. You can use this information to determine the exact location of an Oracle data block on a physical device and to help identify hot spots.
Note
Mapping functionality requires Oracle 9.2.0.3 or a later version.