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Oracle9i Database Reference
Release 2 (9.2)

Part Number A96536-02
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Parameter type

Big integer


DB_[2 | 4 | 8 | 16 | 32]K_CACHE_SIZE = integer [K | M | G]

Default value

0 (additional block size caches are not configured by default)

Parameter class


Range of values

Minimum: the granule size

Maximum: operating system-dependent

DB_nK_CACHE_SIZE (where n = 2, 4, 8, 16, 32) specifies the size of the cache for the nK buffers. You can set this parameter only when DB_BLOCK_SIZE has a value other than nK. For example, if DB_BLOCK_SIZE=4096, then it is illegal to specify the parameter DB_4K_CACHE_SIZE (because the size for the 4 KB block cache is already specified by DB_CACHE_SIZE).

Do not set this parameter to zero if there are any online tablespaces with an nK block size.

Platform-specific block size restrictions apply. For example, you cannot set DB_32K_CACHE_SIZE if the maximum block size on the platform is less than 32 KB. Also, you cannot set DB_2K_CACHE_SIZE if the minimum block size is greater than 2 KB.

See Also:

For more information on block size restrictions, see your platform specific documentation