On 12 April 2017 at 10:16, Tom Marchant < [email protected]> wrote: [DB2]
> So, if it thinks it would be faster to read the record from DASD than for > MVS to page in the buffer page(s) containing the record, it will read the > record into different pages that have not been paged out? > > It still makes no sense to me. It certainly can't read the record into the > same page, because that would require that the page be paged in first. > I've no idea what it *does* do, but it *could* Page Release the old page before reading from DASD into it. > And what does it do with the old buffer page? Stop using it? Freemain > and getmain again so that the page slot becomes superfluous? > That would be taken care of by the Page Release. Tony H. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
