Schwarz, Barry A wrote:
Can someone give me a hint why the EXCP count for a full volume dump for an unchanged volume would occasionally vary by ~400 between one execution and the next.
DFDSS uses chained I/Os, where the completion of one I/O triggers the next one in the same CCW chain. Under some conditions delays in interrupt handling, or channel/controller busy can break the chain and necessitate a restart. If you're really curious about this, try to reconstruct what else is going on (SMF, RMF records) when the counts increase.
Gerhard Postpischil Bradford, VT new e-mail address: gerhardp (at) charter (dot) net ---------------------------------------------------------------------- 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
