John is completely correct that you need to look at a dump. It could be almost anything. Most programs have an expectation about the data they read (e.g. specific record layout and specific lengths). If the program ignores the I/O error and assumes the data is valid, then you could have any type of error. Capture a dump from the abend and determine which product is abending. The hardware seems to be reporting a valid error. The software doesn't abend with unrecoverable I/O error. Instead, it seems to continue happily using the bad data.
Jon Perryman. >________________________________ > From: John McKown <[email protected]> > > > >I do _not_ know why your are getting these types of abends after a tape I/O >error. My _guess_, without any kind of dump available, is that the program >code is reading beyond the I/O area. > >On Thu, Oct 17, 2013 at 9:05 AM, suresh chacko <[email protected]> wrote: > >> In my shop we were using lots of tape jobs which are of 3490 old VTS kind. >> Currently migrating to IBM7700 VTL. >> >> We experience lots of batch jobs failures from 3490 VTS followed by >> equipment check 0C4 -11 or 4. These jobs are reading dataset written on >> multiple logical volumes. What I noticed the 0C4-11 will be occurred >> immediately after an equipment check on VTS drive causing I/O error. > > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
