stcStorageDiskSettings structure

The size (sizeof(stcStorageDiskSettings)) of the structure.

Minimum size (in bytes) of the cache that should be used for read / write operations.
Default value: 8388608 (8 MB)

Maximum size (in bytes) of the cache that should be used for read / write operations.
Default value: 268435456 (256 MB)

Delta size (in bytes) that the cache is reduced by after not being used for more than the ulCacheHalfLife time.
Default value: ullCacheSizeMax / 32

Timeout (in milliseconds) after which the cache is temporarily reduced by ullCacheSizeDelta.

Values used to find the minimum fragment size that the system uses during data allocation.
See “Remarks” for more information.
Default value: 2

Values used to find the minimum fragment size that the system uses during data allocation.
The minimum fragment size that the system uses during data allocation can be greater than the usFragmentingLength, but is never greater than the usFragmentingLength << usFragmentingMaxSteps.
See “Remarks” for more information.
Default value: 9

Absolute minimum fragment size used during data allocation (except for allocations that are less than this size).
Default value: 8

int x = 0;

while((x < usFragmentingMaxSteps)
   && (AllocationLength > (usFragmentingLength << (x * usFragmentingStep))))
	++x;

MinFragmentLength = usFragmentingLength << x;