I have found the PROCLIB I/O errors to happen mostly after having updated the proclib from another lpar. I am not sure if this is always the case, but there seems to be a correlation, at least at my site.
-----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Terry Sambrooks Sent: Thursday, March 22, 2007 7:06 AM To: [email protected] Subject: IEFC603I PROCLIB DEVICE I/O ERROR READING FOR JOB Hi Tommy, I am not exactly sure whether it is the same message but I have certainly had similar situations of a PROCLIB I/O errors on z/OS 1.6, which have been resolved simply by resubmission or re-issuing the start command. In each case I have realised that the error occurs with a procedure that has just been modified. It does not always happen so it is probably related to extent management within the PDS/PDSE or temporary discrepancy between actual location and the directory pointer. Either way because re-run always resolves the issue I have not treated it as a serious issue, other than sometime issuing a start command or typrun=scan job to perform the read which I think may cause the error so that next time it works just fine. Kind regards - Terry Terry Sambrooks Director KMS-IT Limited 228 Abbeydale Road South Dore Sheffield S17 3LA UK Tel: +44 (0)114 262 0933 WEB: www.legac-e.co.uk www.kmsitltd.co.uk Reg: England & Wales 3767263 at the above address All outgoing E-mails are scanned but it remains the recipients responsibility to ensure that their system is protected from viruses, trojans, worms, and spy-ware. ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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

