A significant number of HP 3000 shops have employed Linux as a replacement over the last 15 years. (Yes, it's been that long that the MPE/iX community has been migrating or homesteading their systems). Over that time, open source software has become so mainstream that an architecture meeting often includes a line like, "Well, what can open source do for us here?"
If open sourcing a commercial datacenter sounds enticing—think of the size of the community you join, for example—it's wise to remember a commercial open source is the way to success. Downloading and testing is always essential, but adding open source has its best prospects when there's a commercial, paid support aspect to the choice.
This week we reported on one HP 3000 site where the system is making a slow exit. Harte & Lyne is still using a Series 918 with MPE/iX 7.5. The operations are being supplanted by what manager James Byrne calls FOSS: Free and Open Source Software. He's got his reservations about doing much more in that direction, though. Byrne said a more commercial—though not vendor-specific—approach to new architecture is in order.
HP was advising this to its enterprise computing customers as far back as 2006. Linux in the datacenter was a lot more exotic in that year, a time when HP was still selling support for the 3000. That vendor-based support is all gone by now, right down to the demise of docs.hp.com webpages where advice and training materials once lived. If you need 3000 support, third parties like Pivital Solutions are the best way to go forward, even if you're going away slowly.
An HP exec of 2006 said it only made sense to look for a supported FOSS design. David Claypool said
The rational thing to do is to choose something from a commercial company, whether implementations available and supported by a Linux distribution or non-affiliated Xen implementations like those from XenSource, Virtual Iron, and now Oracle.
Working together in such alliances was part of what FOSS was all about at the beginning. It would be another four years before Oracle would hire the departing CEO of HP, Mark Hurd, to run Oracle's software business. In 2006 all was pretty collegial between Oracle and HP.
Certainly, it's possible and may even be prudent for some to download and run the bits from a raw open source project. But it's incumbent upon the adopter to understand the commitment to self-reliance that's being made if it's being used in any operational or revenue-producing capacity.
Linux was free until users understood they still needed a support provider to contact when things went awry. Support is the enduring part of any software relationship, and it's something critical for everyone who's using computers to drive an enterprise. Even HP 3000 shops need someone to call when the bits get out of alignment.