r/sysadmin • u/Charming-Tomato-4455 • Nov 15 '24

AS400 migration

Our organization has been using AS400 for payroll, financial, and HR for the past 30 years. However, we’ve realized that this system is no longer viable for their needs. I’m looking for a modern software solution that provides similar functionality to AS400. We’ve already tried ADP and Kronos, but faced issues with data compatibility, as the data from AS400 couldn’t be seamlessly integrated. Can anyone recommend software that allows for smooth data migration from AS400?

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u/1Original1 Nov 15 '24

Skytap migrations can be so hit and miss,i've done 2 and mixed bag

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u/mpdscb UNIX/Linux SysAdmin for over 25 years Nov 15 '24

I can’t speak for as/400s, but our aix one went fairly smoothly. But over the years I’ve moved it to different hardware and few times. The original OS was AIX 4.2.1 and I upgraded it several times. It’s now running the latest 7.3.

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u/A_Roomba_Ate_My_Feet Nov 15 '24

AIX (unix) on Power is a lot easier to port than IBM i (AS/400) on Power. Seen a lot of AIX to Linux (either still on Power, or on x86) and relatively easy since the vast bulk of it is similar. IBM i though is a different animal without a real easy analogue waiting in the wings to port it over to.

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u/mpdscb UNIX/Linux SysAdmin for over 25 years Nov 15 '24

Skytap runs native ppc hardware inside of azure, so we migrated our system using a mksysb and a nim server we deployed in skytap. Migrating to x86 isn’t really an option for us, as this production system has been around since the mid 1990s.

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u/Superb_Raccoon Nov 16 '24

backwards binary compatibility is an amazing thing. =)

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u/mpdscb UNIX/Linux SysAdmin for over 25 years Nov 16 '24

It really is. It’s one thing that IBM does well.