Mike - Thanks. I really don't know anything about INFOPAC, but if that is common, then I guess I'll have to accept that.
-- Eric Bielefeld Systems Programmer ---- Michael Wickman <mwick...@waddell.com> wrote: > Yes INFOPAC does behave in this manner. Watch your catalog since the same > thing happens there as well. > > > Mike Wickman > > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf > Of Mike Schwab > Sent: Tuesday, October 05, 2010 2:59 PM > To: IBM-MAIN@bama.ua.edu > Subject: Re: [IBM-MAIN] Strange Allocation Behaviour > > 123 extents, so VSAM? If a CI is full and an insert takes place, a CI > split can occur. If The insert happens to fall at just the right > point in that CI, and all the records go into the new CI. The insert > is then tried on the new CI, so another CI split happens. Repeats > until it runs out of space or hits maximum extents. Just had one 2 > weeks ago on our site. > > Might try a hex file dump utility to verify this on the original data > set. Logical print would just show the user records. > > On Tue, Oct 5, 2010 at 2:39 PM, Eric Bielefeld <eric-ibmm...@wi.rr.com> wrote: > > I just had a strange experience with a dataset. A user called me and asked > > me to copy a dataset that was full. It was extended format, and had 123 > > extents, and used 132 Cyl. I renamed the DS, and then copied it. Much to > > my surprise, the dataset now takes 14 Cyl. Both are blocked at half track, > > and they are PS & FB. > > > > The only thing I can think of is that records are being deleted, and only > > when the DS is copied do you release the space. This is part of INFOPAC, > > which I know nothing about. > > > > Anyone know why the new DS takes up so much less space? > > > > -- > > Eric Bielefeld > > Systems Programmer > > > -- > Mike A Schwab, Springfield IL USA ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
