This got me sufficiently interested I started poking around and looking at pricing ("Add to cart") of all the different systems available. There are actually a few. In decreasing order of price: - Both the 2U and 4U rackmount servers are $5,475 (4U: https://secure.raptorcs.com/content/TL2SV2/purchase.html , 2U: https://secure.raptorcs.com/content/TL2SV1/purchase.html ). The only difference is 2 versus 3 SAS HBAs, 16…
My understanding is that the Lite board is essentially the full board, but with the second socket and related components removed from the design to reduce cost.
> I'm not aware of anywhere else you can get a POWER9 box
Raptor is the only company selling Power in a workstation form factor, and of course they've got the lowest entry price.
IBM has the AC922 (https://www.ibm.com/us-en/marketplace/power-systems-ac922) and will be rolling out more models imminently.
Several OpenPOWER members (https://openpowerfoundation.org/) are also working on their own POWER9 machines. AFAIK, none of them have GAed just yet, but some of the machines were announced at the OpenPOWER summit - https://openpowerfoundation.org/wp-content/uploads/2018/03/H.... There are quite a number of POWER8 machines already on the market.
All POWER9 machines use a primarily open source firmware stack, though it does depend on the vendor - vendors will have their own customisations in some cases, and in particular for the BMC firmware. Raptor is also stripping out/manually rebuilding some binary blobs etc.
(Disclosure: IBMer, I don't speak for IBM or Raptor.)