> -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:[EMAIL PROTECTED] On Behalf Of Philip Miscione > Sent: Tuesday, June 27, 2006 3:00 PM > To: [email protected] > Subject: HCD > Sensitivity: Private > > > All > > I need to make a change to our EDT to change the dev address that gets > allocated when I specify unit=TAPEBV > Currently address 19D gets allocated. I created a new IODF to allocate > dev address 199 when unit=TAPEBV is specified. > I have not changed it dynamically yet, but when I do is it > considered a > software change only or both hardware and software. > I realize I have to change my load parms at IPL time > Will I have to create a new IOCDS and do a POR, I don't want to loose > the change on subsequent IPL's. > > TIA > > Philip A. Miscione Sr > > Project Leader > > Barnes & Noble, Inc. > > email: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > > Phone: 516-338-8227 > > Fax : 516-338-8487 >
Since you are not adding any hardware, on really changing the EDT, you can get by with a "software only" change. Now, if you IPL with the new IODF but the old IOCDS, you'll get a message at IPL time that dynamic hardware changes are forbidden. On current (z800+) systems, you do not really need a POR. What I do after creating a new IODF is put it in the LOADxx member. I then use the HCD dialog (option 2) to "Activate or verify configuration dynamically" (option 2.6). Use option 1 "Activate new hardware and software configuration" (yes, I do change the hardware even though there is no real hardware change). I change "Test ONLY" to "NO", "Write IOCDS" to "Yes" and "Switch IOCDS for next POR" to "YES". This will dynamically update the HSA (the only thing that changes is the TOKEN, really). The Write IOCDS submits a job to write the appropriate IOCDS on the HMC/SE/wherever and, if successful, updates the HMC/SE/whatever so that the new IOCDS is made the active one in case of a POR. I've never had a failure/outage doing the above. -- John McKown Senior Systems Programmer HealthMarkets Keeping the Promise of Affordable Coverage Administrative Services Group Information Technology This message (including any attachments) contains confidential information intended for a specific individual and purpose, and its content is protected by law. If you are not the intended recipient, you should delete this message and are hereby notified that any disclosure, copying, or distribution of this transmission, or taking any action based on it, is strictly prohibited. ---------------------------------------------------------------------- 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
