On: IBM AS/400: Databases all the way down (2019) [video]

[sgt]

So AS400 developers would chronically be deploying at night? Code during the day and deploy/fix/hack at night? Actually, that sounds familiar.

[bluepizza → sgt]

Yes - we had a night shift from 00:00 to 08:00 that was oddly popular.

[rbanffy → bluepizza]

Computers are much faster when the batch jobs finish running and there are no interactive users logged in.

[crest → rbanffy]

I guess it depends on how long the batch jobs run and how much they impact interactive use compared to the normal dayshift workload.

[bluepizza → crest]

They usually lock the database completely, so you have to time your work around them.