AS400 training?

My current company is a local bank that operates on an AS400. I do a little work with it, generally just running and printing reports, resetting passwords and setting up workstations to access the AS400 resources. I've wanted to become more knowledgeable with the technology though, and I am curious how to go about this besides what hands-on experience I am getting.
Doing a little research, it seems the AS400/iSeries software is a bit outdated? Or am I mistaken? Is it worth further educating myself in this technology, besides the benefits of being more skilled for this specific job?
If I do want to further advance my knowledge, are there entry level certifications out there?
Doing a little research, it seems the AS400/iSeries software is a bit outdated? Or am I mistaken? Is it worth further educating myself in this technology, besides the benefits of being more skilled for this specific job?
If I do want to further advance my knowledge, are there entry level certifications out there?
Comments
It's amazing how that ancient software has withstood the test of time, and I'd bet will continue to, nice little niche cert for sure.
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Still use it at my job here almost everyday. Basic administration stuff though