Not sure what's meant by having to chain CCWs. I just finished updating an old RYO program that writes 80 byte records to any device specified because I needed to test >32K blocks on tape. I merely added a DCBE with BLKSIZE=0 and pointed to it in the existing DCB. No other changes. Created a tape file with BLKSIZE=261760 (256K) (as reported by RMM) by specifying that block size in JCL. No attempt at chaining, which I would not know how to do anyway.
. . JO.Skip Robinson Southern California Edison Company Electric Dragon Team Paddler SHARE MVS Program Co-Manager 626-302-7535 Office 323-715-0595 Mobile [email protected] From: "Blaicher, Christopher Y." <[email protected]> To: [email protected], Date: 12/09/2013 10:31 AM Subject: Re: "hexadecimal"? Sent by: IBM Mainframe Discussion List <[email protected]> Tape devices for BLKSIZE greater than 64K-1. You have to chain a number of CCW's together for a BLKSIZE=256K. Chris Blaicher Principal Software Engineer, Software Development Syncsort Incorporated 50 Tice Boulevard, Woodcliff Lake, NJ 07677 P: 201-930-8260 | M: 512-627-3803 E: [email protected] -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Gerhard Postpischil Sent: Monday, December 09, 2013 12:54 PM To: [email protected] Subject: Re: "hexadecimal"? On 12/9/2013 11:53 AM, Scott Ford wrote: > Bill, > I thought you could chain ccws I think you misread his message, which started with command chaining. But I would be interested in which control units and controllers allow data chaining beyond 65KiB. Gerhard Postpischil Bradford, Vermont ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
