I am at the last year of my studies and I started an internship as a Cobol analyst developer a couple months ago, and with it I discovered the mainframe technologies. Although I would like to learn more about it in the long run, I currently need to get better specifically at Cobol. So I was wondering if there is some kind of interactive website or some easy thing where I could write code and train without having to worry about the JCL for compiling.
As a newcomer, before trying to wade around in the dark on my own, I thought I'd come and try to get some direction here.
I have a few confusions about where to start learning this topic. I'm not doing this in a university or anything so I don't have access to any labs, so I was going to use hercules, is this an okay way to learn?
Secondly, is there specific hardware you need to start first steps? I was just going to use hercules on my home PC, and since it's for practise, I doubt it will be under any real "load" outside of the mainfame os itself.
lastly, are there any good beginner resources out there to learn from? I know I can just youtube it but I'd rather ask here because in my experience, it's best to go with what has the "communitys seal of approval" to ensure quality. So are there any notable "noobs go here" resources to get my footing?
I graduated from college in 2014, and in 2015 and 2018 I got my CCNA in routing and switching. I got some decent networking experience from 2014 - 2018, and for the past year I got a job in mainframe hardware, which is basically a support role for the mainframes and other direct access storage devices.
I am now thinking about "switching" from a focus on networking and security to mainframe and all that it deals with, but I don't know where to begin or how to start. I know very little and it even feels like I am "starting over". Any advice for me?