I am having a JCL that has many sort steps. All the SORT steps have both input and output as TAPE files. This makes the JCL to run for 3 to 4 hours.
Is there any DASD units like TEMPDA which would make my processing time less and also hold huge data. The data size would be around 1 GB.I am not too bothered about the dataset retention duration in DASD. It is ok if retention is greater than 1 day. BAsically, i would like to know what are different types of DASD like SYSDA, TEMPDA and their differences
Joined: 17 Aug 2007 Posts: 562 Location: Iowa, USA
You might reduce elapsed time by allocating two units for SORTIN. If the tapes require manual mounting or recall in a virtual library, using two units helps get the next volume staged prior to reading.