emory wrote:ZFS-on-OS-X is a niche business of a niche business, but there are a lot of professionals that just aren't at all aware of it. With the appropriate Product Manager, it could be a very popular product.
Unfortunately, I'm not sure this is true. On the server side, Apple has essentially completely ceded the market, with OS X Server targeted primarily at Mac App Store and iOS App Store developers.
Small businesses and enterprises are much more likely to use Windows or Linux for their servers. If they want to ensure data integrity on their Windows servers, they can use ReFS. If they want to ensure data integrity on their Linux servers, they can use ZFS on Linux or Btrfs. Expensive Apple hardware for servers is just not all that common, especially now that XServes are gone and an xMac mini Server is $1295, not including the Mac Mini: http://www.sonnettech.com/product/xmacminiserver.html
So who are these "professionals" that you're talking about? Companies who would want workers using Mac client machines to keep their home directory on ZFS? Freelance graphic designers, photographers, etc. working on personal Mac Pros at home?