The following control stream specifies only the system default values. CA Hyper-Buf attempts to optimize all OPENs within these default constraints.
SYSTEM_DEFAULTS * begin defaults
MAXBUFSP=100K * maximum per file
MAXBUFND=12 * maximum per file
MAXBUFNI=8 * maximum per file
CUSHION=100K * leave this much after OPEN
DEFAULTMODE=INCLUDE * all included
The above sample control stream restricts the maximum buffer space for any single file to 102400 bytes (100K). Also, the maximum allowable number of data buffers is 12, and the maximum allowable number of index buffers is 8. Since no minimums are specified, the system values are chosen as the minimums: (strno) index buffers, (strno+1) data buffers, and the default MINBUFSP value is the amount of buffer space required by MINBUFNI index buffers and MINBUFND data buffers.
All OPENs use these same rules since DEFAULTMODE=INCLUDE. The only OPENs that do not abide by these rules are those which cannot be buffered by CA Hyper-Buf. See the section Method of Operation for a description of excluded OPENs. Since there are no EXCLUDE mode controls, there are no exclusions.
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