On Wed, 14 Nov 2012 14:39:35 -0500, Bonaduce, Frank wrote: >Are dynamic IODF changes actually so prevalent in most environments >(especially in Production) that the condition warrants that much
Why wouldn't IODF changes be implemented dynamically in production environments? Anyway, how many shops have CECs dedicated to non-production LPARs? Many years ago, I had a channel switch that had a few lightly used unit-record devices attached. IIRC, there were four devices and four LPARs connected to the switch. One of the LPARs was production. We still wanted to be able to connect any of the devices to any LPAR, but wanted to eliminate the channel switch. The solution was to connect each device to a dedicated channel path and when there was a need to switch a device the channel path off of one LPAR and on to another. We made multiple dynamic IODF changes, removing one CHPID at a time and butting the cables together to connect one device to that CHPID, then another IODF change to bring the device back online to the production LPAR. The entire reconfiguration was done during the day while with no disruption, just the unavailability of one device at a time for a relatively short time. -- Tom Marchant ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
