EPCB= parameter for procedures

Use the EPCB= parameter in procedure to specify the amount of subpool 231 storage to be allocated to the EPCB pool.

The value can be specified as 1- to 6-numeric characters or 1- to 5-numeric characters followed by K (kilobyte), M (megabyte), or G (gigabyte). If K, M, or G is not specified, K is the default. The maximum value that can be specified is 2G-1. If the value specified exceeds 2G-1 the default is 2G-1. The pool size specified is rounded up to the nearest page boundary.

If Fast Path is not generated, the EPCB pool is not allocated. If Fast Path is generated, an EPCB pool is required when the PSB, used by the IMS dependent region, has PCBs for Fast Path databases. This is true regardless of whether the region ever makes a call to these Fast Path databases. If nothing is specified on the EPCB= parameter and if Fast Path is generated, the default pool size is 8K.