Shel, did you excidently changed the blocking factor that effects the number of io operations?
ITschak ITschak Mugzach Z/OS, ISV Products and Application Security & Risk Assessments Professional On Thu, Feb 19, 2015 at 8:45 AM, Sheldon Davis <sda...@isracard.co.il> wrote: > Hi > I am out of ideas. > We converted a set of sequential files to be extended and changed the ACS > routine to put the files on model 54's > The following is what happened: > > 1. Jobs that allocated the files took more CPU and ran much longer. > 2. The catalog address space used about four times more CPU than usual and > did a huge amount of I/O on the disks that the batch job used to allocate > and update the files. > > Thanks for any input > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
