Comments/opinions interspersed -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Michael Babcock Sent: Friday, July 10, 2020 1:20 PM To: [email protected] Subject: Two Processors and One IODF
[CAUTION: This Email is from outside the Organization. Unless you trust the sender, Don’t click links or open attachments as it may be a Phishing email, which can steal your Information and compromise your Computer.] We are in the process of bringing DR back in-house and have a new z15-T02 in our new facility (our current "home" machine is a z14-ZR1). I want to be able to manage both processors from a single IODF. I'd like to have the same CHPIDs, CUs, and Device addresses both at home and in our DR machine. I have the new processor defined in our current IODF and have used the CHPID mapping tool to map the PCHIDs to CHPIDs. I have tested adding devices with the same address to both processors and that seems to work (as long as I define the CUs to both processors first. I tested adding a range of 16 tape drives). My questions are this: 1. Is this something we even want to do (same IODF, same device addresses)? --> The more alike your 2 machines are the less chance for error. This can be done with 1 IODF, but is not required. See #2 2. What's the best way to move the IODF at home to the DR machine? --> I use 2 series of IODF's 01-04 for the production image 91-94 for the DR image. Corresponding to the IODF. IODF changes are made in parallel to both copies. The IODF is moved from local to DR by a flash copy of the IODF volume. 3. Are there any gotchas we need to watch out for? --> Can't think of any except to remember to keep both configurations "in sync" 4. We have IBM DS8886s and are using Metro Global Mirror Multi-Target w/Practice. Any concerns here? -->No opinion. 5. Am I crazy for even entertaining this idea? --> Nope. Makes sense to me 6. Any alternatives I need to consider? --> Others may offer some. I am of a very similar mindset to yours. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ::DISCLAIMER:: ________________________________ The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents (with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates. Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of authorized representative of HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any email and/or attachments, please check them for viruses and other defects. ________________________________ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
