VMS Help Sys Parameters, ACP_EXTCACHE *Conan The Librarian (sorry for the slow response - running on an old VAX) |
ACP_EXTCACHE sets the number of entries in the extent cache. Each entry points to one contiguous area of free space on disk. A specification of 0 means no cache. Too small a value causes excessive XQP I/O operations, while too large a value causes excessive physical memory to be consumed by the extent cache. ACP_EXTCACHE is a DYNAMIC and FEEDBACK parameter.
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