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Mainframes are amazing machines, but I’m not sure as to how one would bring these 9s to the end user application. Can you have it globally distributed? Cross d
by andriosr 6y ago
Mainframes are amazing machines, but I’m not sure as to how one would bring these 9s to the end user application.
Can you have it globally distributed? Cross datacenters? Blue/green deployments? Canary?
I saw a couple real world cases where banks went out of service due to an electricity outage, they could not switch the mainframes to another datacenter.
If you put a fault-tolerant multi/az app on AWS, the spinning disk or ssd may not have the 9s of mainframes, but the end users won’t notice if one stops work ring.
- lboc 6y ago1. Yes 2. Yes https://ibmsystemsmag.com/IBM-Z/07/2019/resiliency-gdps-solutions https://ibmsystemsmag.com/IBM-Z/07/2019/resiliency-gdps-solu... Don't know enough about current mainframe development practices to answer the last two sorry, but I don't see why not. (Edit: missing word)
- andriosr 6y agoCool! thanks for sharing, will check out.
- wil421 6y agoIt doesn’t matter if it’s a JS app running in a container or a mainframe, if the power is knocking your service out you’re not doing it right. The company I work for runs a few mainframes. The DCs have 2 circuits for power, batteries, and diesel generators. I’ve seen them run the tests on the generators. Our “main” mainframe does not run 9s it runs 100% of the time or someone from IBM is getting on a plane... Read a few pages into this where they talk about x86 cores. https://www.datacenterknowledge.com/hardware/why-mainframes-arent-going-away-any-time-soon https://www.datacenterknowledge.com/hardware/why-mainframes-...