Changing the secondary space quantity

You can specify the number of tracks to be allocated as the secondary space quantity for the specified (or default) unit. An example:

 PATCH .MCVT.+4B2 X'0028' VERIFY(.MCVT.+4B2 X'0032') /* Secondary space      */
                                                     /* quantity for ODS     */
                                                     /* allocation=40 tracks */

DFSMShsm uses a default secondary allocation of 50 tracks.

Note: If you use the OUTDATASET option for this PATCH command, the patch does not affect that allocation.