Do your public/storage volumes have different geometries? (That is, does the system select different blocksizes?)
I notice that the files in question are RECFM=VB. A *very* long time ago, with a COBOL compiler that Zeus used in grade school, you had to be careful writing variable-length records (with embedded ODOs). Before performing a WRITE FROM you had to initialize the receiver's DEPENDING ON field, else the implied group move would incorrectly calculate the length of the receiving record. The reason I bring this up is that a program that overruns the logical end-of-record may or not S0C4, depending on blksize / blocking factor. Just something to think about. You said you didn't have access to source code, so all this is mere speculation. -- David Andrews A. Duda and Sons, Inc. [EMAIL PROTECTED] ---------------------------------------------------------------------- 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

