The RSRVTI option is used to reserve virtual storage below the 16-megabyte line for system or program requirements during a program-initiated sort.
This option will be in effect if the execution time parameter CORE is not passed, or if CORE is set to MAX when it is passed. Information about execution time parameters can be found in the Syncsort™ MFX Programmers Guide.
The amount of storage to be reserved may be specified in bytes (nnnnnnnn) or kilobytes (nK).
The default is 44K.