> Wouldn't a simple 'PIPE command RELEASE X | hole | append CP DET > 120 | hole' be more straightforward? Yes, it has 2 holes vs 1 spec, > but I would guess that they would be faster; however, overhead would > ... Even this pipe this not guarantee the execution order, the only thing you say here is that the output of CP DETACH must be appened to the output of RELEASE. It does not tell when the CP DEATCH can run.
Another thing no-one said this far: when the disk is R/O, a simple DETACH is enough, CMS will RELEASE when it gets the signal that the device is detached. Not eveb a PIPE Rolls Royce is required: call DIAG 8,'DETACH' vdev Only for a R/W disk, a RELEASE should better be done before a DETACH, it gives CMS a chance to write anything it still should. Kris, IBM Belgium, VM customer support
