It's been a while since we in a position do a straight upgrade. If your (re)seller tells you that you'll have the same serial number, that should be the case. But if so, the original box should have been transformed into a new one, so I don't see how there would be any opportunity to connect them together. Seller will need to explain that.
HMC is technically a part number of a CEC complex, so if new HMC hardware is needed, it should be included in the upgrade. You ought to be able to have a fully capable HMC with software already in place before the CEC upgrade. Again, I don't think you can have two boxes side by side with the same serial number. Please get your seller to clarify that. . . J.O.Skip Robinson Southern California Edison Company Electric Dragon Team Paddler SHARE MVS Program Co-Manager 323-715-0595 Mobile 626-543-6132 Office ⇐=== NEW [email protected] -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Alan(GMAIL)Watthey Sent: Monday, February 26, 2018 10:19 PM To: [email protected] Subject: (External):Re: Hardware upgrade z13 to z14....Yikes We are in the early stages of doing an 'upgrade' and we have been told that this means the serial number does not change (obviously the model number does). An 'upgrade' is much cheaper allegedly. Same serial number CPCs must apparently never see each other so I've set up a VLAN on the HMCLAN just for this new CPC and it's HMC. We've put one of the new HMCs on the prod LAN and one on the segregated LAN. We'll switch them both to the prod LAN when the old CPC is disconnected. Also your existing HMCs (if you keep any) may not be able to see the new CPC without a software upgrade which their hardware may not be able to support. The new HMCs will see the old CPCs (if you have any) without issue (once on the same LAN). Some software checks the model number when doing a serial number check so even when the serial number stays the same they will need a new code. We plan to test the new box and then change over to it in its entirety in one go. We have a few spare ports on our Ficon Directors but nowhere near enough to connect new and old in their entirety so I'm connecting a few CHPIDs up front to give access and then moving the rest over during the changeover. They'll already all be in the IO defs everywhere as I'll change the port address (old to new) on the Ficon Director as I swap the cables. Regards, Alan Watthey -----Original Message----- From: Ward, Mike S [mailto:[email protected]] Sent: 26 February 2018 7:28 pm Subject: Re: Hardware upgrade z13 to z14....Yikes What also comes to mind, if you have 3rd party software make sure to contact them about the new CPU. Even if it's a 1 to 1 swap they may want to charge an upgrade fee. You also have a new CPU serial number so make sure any 3rd party software that requires a specific cpu serial number is updated. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
