Re: VTOC Fmt6 (just curious)

2008-01-10 Thread Bill Godfrey
On Thu, 10 Jan 2008 00:37:23 -0600, Ed Gould wrote: On Jan 9, 2008, at 10:49 PM, Robert A. Rosenberg wrote: At 15:37 -0600 on 01/09/2008, Ed Gould wrote: Thanks... do you remember which release of MFT this was? Did MFT do the split cylinder data set creation? While I can not name a release

Re: VTOC Fmt6 (just curious)

2008-01-10 Thread Ed Gould
On Jan 10, 2008, at 7:32 AM, Bill Godfrey wrote: On Thu, 10 Jan 2008 00:37:23 -0600, Ed Gould wrote: On Jan 9, 2008, at 10:49 PM, Robert A. Rosenberg wrote: At 15:37 -0600 on 01/09/2008, Ed Gould wrote: Thanks... do you remember which release of MFT this was? Did MFT do the split cylinder

Re: VTOC Fmt6 (just curious)

2008-01-09 Thread Ed Gould
On Jan 8, 2008, at 1:19 PM, Phil Payne wrote: For around 18 months I supported a card input validation suite that ran on a 24KB 360/25. The backup system was a 360/50 under OS/360 MFT. The code was all written quite deliberately with this compatibility in mind, and it actually wasn't

Re: VTOC Fmt6 (just curious)

2008-01-09 Thread Rick Fochtman
-snip- Thanks... do you remember which release of MFT this was? Did MFT do the split cylinder data set creation? --unsnip-- I can't give the first release, but it worked OK in release 14.6 of OS/360. That was

Re: VTOC Fmt6 (just curious)

2008-01-09 Thread Ed Gould
On Jan 9, 2008, at 8:13 PM, Rick Fochtman wrote: -snip- Thanks... do you remember which release of MFT this was? Did MFT do the split cylinder data set creation? --unsnip-- I can't give the first release,

Re: VTOC Fmt6 (just curious)

2008-01-09 Thread Robert A. Rosenberg
At 15:37 -0600 on 01/09/2008, Ed Gould wrote about Re: VTOC Fmt6 (just curious): Thanks... do you remember which release of MFT this was? Did MFT do the split cylinder data set creation? While I can not name a release level, I can state that OS/360 JCL supported the SPLIT Parm

Re: VTOC Fmt6 (just curious)

2008-01-09 Thread Ed Gould
On Jan 9, 2008, at 10:49 PM, Robert A. Rosenberg wrote: At 15:37 -0600 on 01/09/2008, Ed Gould wrote about Re: VTOC Fmt6 (just curious): Thanks... do you remember which release of MFT this was? Did MFT do the split cylinder data set creation? While I can not name a release level, I can

Re: VTOC Fmt6 (just curious)

2008-01-08 Thread Ed Gould
On Jan 7, 2008, at 4:09 PM, (IBM Mainframe Discussion List) wrote: - SNIP- Next came compatibility between a DASD volume created on DOS/360 and being able to access its data under OS/360. This is why

Re: VTOC Fmt6 (just curious)

2008-01-08 Thread (IBM Mainframe Discussion List)
In a message dated 1/8/2008 7:57:10 A.M. Central Standard Time, [EMAIL PROTECTED] writes: I do not remember the split parameter on JCL on(in) JCL from MFT 18.6 days but you say in was still there in MVS 2.0 are you sure it was there(or when it was dropped)? I probably erred. I

Re: VTOC Fmt6 (just curious)

2008-01-07 Thread (IBM Mainframe Discussion List)
In a message dated 12/31/2007 12:47:22 P.M. Central Standard Time, [EMAIL PROTECTED] writes What was Fmt6 for ? Originally in DOS/360 you could, and in some cases were encouraged to, allocate files so that more than one file would share the same cylinder numbers as another file.

Re: VTOC Fmt6 (just curious)

2007-12-31 Thread Tom Schmidt
On Mon, 31 Dec 2007 19:46:39 +0100, R.S. wrote: What was Fmt6 for ? Disclaimer: I know it is obsolete and no longer used. It was for split-cylinder allocation. It hasn't been supported (or needed) in many years. Check the IBM-MAIN archives for additional information - it has been discussed

Re: VTOC Fmt6 (just curious)

2007-12-31 Thread Michael Stack
At 12:46 PM 12/31/2007, you wrote: What was Fmt6 for ? I found two contradictory explanations Disclaimer: I know it is obsolete and no longer used. Happy New Year -- Radoslaw Skorupka Lodz, Poland It was used for SPLIT allocation (cylinders which were shared). Allocated by SPLIT= instead of

Re: VTOC Fmt6 (just curious)

2007-12-31 Thread Ed Gould
On Dec 31, 2007, at 1:33 PM, Michael Stack wrote: At 12:46 PM 12/31/2007, you wrote: What was Fmt6 for ? I found two contradictory explanations Disclaimer: I know it is obsolete and no longer used. Happy New Year -- Radoslaw Skorupka Lodz, Poland It was used for SPLIT allocation

Re: VTOC Fmt6 (just curious)

2007-12-31 Thread Patrick O'Keefe
My rather poor memory says it was DOS only. I don't recall it being available at MFTII rel 18.6 (?). Somebody pipe up if I am wrong, please. ... I think it must not be just DOS because a B37-08 abend has as one of its explanations: o A split cylinder data set was located on cylinder zero,