AFAIK it's transparent to the user. JES2 compresses/decompresses data written/read to/from each track group. It's completely optional. The zEDC Integrated Accelerator must be available on the system where JES2 is to perform SPOOL compression, and ADVANCED_FORMAT=YES needs to be specified in the SPOOLDEF configuration statement, or dynamically enabled.
Mark Jacobs Sent from ProtonMail, Swiss-based encrypted email. GPG Public Key - https://api.protonmail.ch/pks/lookup?op=get&[email protected] ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On Thursday, April 8th, 2021 at 10:53 AM, Paul Gilmartin <[email protected]> wrote: > On 2021-04-08, at 07:01:20, John S. Giltner, Jr. wrote: > > > Not sure if it really makes a difference, but I noticed that one of the > > SYSOUT classes, A I think, had COMPRESS=YES and the class K had COMPRESS=NO. > > Does the SDSF Rexx interface using a dynamically DDNAME uncompress > > on-the-fly? > > Is it optional? > > Does it depend on choice of command? > > -- gil > > ----------------------------------------------------------------------------------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
