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Oracle® Database Reference
10g Release 2 (10.2)

B14237-04
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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