On Wed, 31 Dec 2008 13:56:20 +0200, גדי &#1489;ן אבי <[email protected]> wrote:
>Ive encountered something in Syncsort, and Im looking for an explanation. > > > >One of our users used Syncsort to copy a dataset. > >The input file had 93386 tracks in 10 extents. > >The output file had 64815 tracks in 2 extents. > >Both files are LRECL=27904 BLKSIZE=27998 RECFM=VB DSNTYPE=LARGE. Could it be that the space on the track is being used inefficiently because most of the records are about half of the buffer size? Syncsort might be smart enough to write short blocks when it knows that there is not room for a full block at the end of a track, improving utilization. Just a wild guess. -- Tom Marchant ---------------------------------------------------------------------- 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
