Both SMS and non-SMS allocations yield the same result here for PS. Regards, John Kalinich
David Andrews <dba To: IBM-MAIN@BAMA.UA.EDU @LISTS.DUDA.COM> cc: Sent by: IBM Subject: Re: DASD allocation guidelines Mainframe Discussion List <IBM-MAIN 02/14/2006 10:52 AM Please respond to IBM Mainframe Discussion List On Tue, 2006-02-14 at 10:03 -0600, John P Kalinich wrote: > I have found that DSORG PS and PO don't always get half track blocking with > SDB. For example, SDB picks a BLKSIZE of 7000 for LRECL 7000. Interesting. On my system (z/OS 1.3... yeah, I know) an extended sequential dataset at LRECL=6991 yields BLKSIZE=27964. LRECL=6992 yields BLKSIZE=6992. But change to non-SMS allocation, and LRECL=6992 yields BLKSIZE=27968. The plot thickens. David Andrews ---------------------------------------------------------------------- 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