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Oracle® Database Reference 10g Release 2 (10.2) Part Number B14237-02 |
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# V$MAP_ELEMENT

`V$MAP_ELEMENT` contains a list of all element mapping structures in the SGA of the instance.

Column | Datatype | Description
--- | --- | ---
`ELEM_NAME` | `VARCHAR2(256)` | Element name
`ELEM_IDX` | `NUMBER` | Index corresponding to element
`ELEM_CFGID` | `VARCHAR2(256)` | Configuration ID: N/A if configuration ID is not supported
`ELEM_TYPE` | `VARCHAR2(12)` | Element type (`MIRROR`, `STRIPE`, `RAID5`, `CONCATENATED`, `PARTITION`, `DISK`, or `NONE`)
`ELEM_SIZE` | `NUMBER` | Element Size in HKB
`ELEM_NSUBELEM` | `NUMBER` | Number of Subelements
`ELEM_DESCR` | `VARCHAR2(256)` | Element Description
`STRIPE_SIZE` | `NUMBER` | Stripe Size in HKB for RAID-5 and STRIPE elements, `0` for the remaining types
`LIB_IDX` | `NUMBER` | Index of the library which claims ownership of the element