Joe, in FICON channel environments, if the CHANNEL has run out of resources (OE's/Credits) this is not shown in IOSQ time. This is recorded as PENDING TIME.
As you certainly know, IOSQ time is time spent inside operating system in UCB queuing. During this state, WLM & IOS are controlling I/O priority, and PAV can reduce IOSQ delay. In an XRC environment, high IOSQ time for primary volume may signify LONG BUSY; if LB is at LCU level, all volumes in that LCU can have long IOSQ time, even volumes with low access rate. You can have some metric about FICON utilization, analyzing PORT status for DASD subsystem in RMF. Hope this helps. _________________________________________________________________________ Paolo Cacciari Business Continuity and Recovery Services, IBM Global Services - South Region, EMEA Via Darwin 85, 20019 Settimo Milanese(MI) – Italy - MISET001 "The goal is to be prepared for a disaster not to continually plan for a successful test" * [EMAIL PROTECTED] ( + 39 051 41.36799 Mobile: + 39 335 6287584 7 + 39 02 596.23288 ---------------------------------------------------------------------- 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
