A couple more things come to mind, in no particular order: 1. You should at least notify your software vendors (including IBM) that you have a new machine serial number as your primary machine for normal operations. Some non-IBM products might need to be “re-keyed.”
2. Notify IBM TSS (and/or system maintenance provider). Occasionally the flip to the other site has maintenance service implications. 3. It’s rare that you’d have two identically configured machines from a capacity point of view at both sites, although I suppose it’s possible particularly if they’re A01 or 401 capacity models. Usually you have CBU (Capacity Backup) on the DR machine instead of permanently activated capacity. Have a chat with IBM about what makes the most sense if you have a nontrivial amount of permanently activated capacity at both sites and that capacity will be idle (or largely idle) during normal operations. There might be merit in reconfiguring the systems. As a bit of an aside, there’s a new feature available with the IBM z16 called Flexible Capacity that’s expressly designed for alternating operations between sites — for example run for 2 months at Site A with Site B as DR, run for 2 months at Site B with Site A as DR, then loop/repeat. — — — — — Timothy Sipples Senior Architect Digital Assets, Industry Solutions, and Cybersecurity IBM zSystems/LinuxONE, Asia-Pacific [email protected] ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
