On Fri, 29 May 2009 12:54:36 -0500, John McKown <@SWBELL.NET> wrote: >On Fri, 29 May 2009 12:51:04 -0500, McKown, John <@HEALTHMARKETS.COM>
You figured out how to circumvent the HIPAA noise? >wrote: >> >>The second temporary file likely got the same extents as a previous >temporary file. But I thought that SMS now forced an EOF to be written at >allocation time. Are your temporary volumes not SMS managed? I know that we >used to get all sorts of odd occurrances like this. Mainly "picking up >garbage" from a temp file that was never OPENed for writing in a previous step. >> > >Ah, I found it in the manual. This only occurs if (1) the DSN is SMS managed >and (2) the DSORG is PS. Number (2) can be done either via the DATACLAS or >DSORG=PS on the DD statement. > Long ago, I dealt with such a problem by allocating with a primary extent of 0 (but don't try this with VIO). And since then, and yet, I wonder why IBM doesn't DTRT and modify allocation to unconditionally write an EOF, regardless of DSORG, SMS, whatever. Are they fearful of the performance impact? -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
