Try a stepwise approach. Take two channels offline, reconfigure, and bring them back on line. Then take the other two off and do those.
Or do the channels one at a time if you cannot tolerate two off at the same time. That worked for me when we did a 'hot' migration from a Shark to a DS8100. We moved the whole farm without an IPL, let alone POR. HTH and good luck. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Tom Sipusic Sent: Thursday, January 04, 2007 11:55 AM To: [email protected] Subject: Dynamically Activate additional CUs on Shark Until now my Shark has been defined as two control units attached to four channels. After adding additional disk capacity it will appear to be four control units on those four channels. I would like to dynamically activate the two new control units and associated I/O devices. When I tried to do this, it failed to activate. It seemed that the channels had to be offline, but the existing Shark DASD has to be online; so we took an outage and did a POR. Was the POR unavoidable? I ask because now I have to change the definitions of the new CUs, giving them different LCUs, and I fear that we'll have to do another POR unless one of you can show me how I can do a dynamic activation here. Tom Sipusic NOTICE: This electronic mail message and any files transmitted with it are intended exclusively for the individual or entity to which it is addressed. The message, together with any attachment, may contain confidential and/or privileged information. Any unauthorized review, use, printing, saving, copying, disclosure or distribution is strictly prohibited. If you have received this message in error, please immediately advise the sender by reply email and delete all copies. ---------------------------------------------------------------------- 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
