There are two conditions under which a question can be marked as closed. 

1. A moderator (those users who were elected by the community to help manage the site and have a diamond beside their name) casts a binding close vote, or
2. A cabal of 5 users, that is not moderators, all cast votes deciding that a question should be closed.

The question you asked was handle by the second case. In fact, the full list of users involved in closing the question are listed at the bottom, see:

![Close Reason and Users][1]

So while freiheit *was* involved, he is not a moderator and was only one of 5 users who felt that the question didn't pass muster when compared against the ServerFault [FAQ][2].

Your situation is one that meets a bit of a fuzzy line for the site. While you may, in fact, be doing this for a business the setup you described is one that would be used in a home environment. I imagine this is the section of the FAQ that resulted in the disagreement:

![FAQ Text][3]

Bullets 3 and 4 clearly don't apply, since the question asked isn't in those technical domains. While the Synology gear is nice, I know of one IT department that has a DS-1010+ on their workbench, it definitely isn't Enterprise grade storage, so the 2nd bullet doesn't apply. That leaves us with checking your situation against the first one. Your question, in my mind, is closest to the bit about server hardware and software.

What I try to do in a situation like this is ask myself, "Would I be willing to sell this service to a customer?" That is, is the configuration good enough that it's stable, secure, and robust enough for me not to feel skeezy taking money for it. If no, then it's probably not a good fit. SeverFault takes heat for this kind of situation at times because, unlike many other StackExchange sites, the goal of this one is that the information here is **for** professionals to use in their professional lives. 

As a personal example, I use XBMC at home for my televisions. I may very well set up a Synology to act as the file server for the videos, and I may enable MySQL on it to share the content database. This would save me the hassle of building a box to do this, and then having to maintain it on my free time. However, there's no way I would feel comfortable doing the same thing at work. I may use my expertise as an IT Professional to configure and run the NAS, but I'm acting in the role of a nerdy husband/father when I do it.

All that being said, I can't claim to speak for any of the people involved in closing your question. However, personally, I probably would have voted to close it as well. 

To more specifically answer your other question about overriding the decision, yes, it can most certainly be done. A closed question can be reopened in the same way that they're closed. 

1. A moderator casts a reopen vote
2. A cabal of 5 users cast reopen votes.

Bringing up the question here on meta will definitely get a lot more eyes on it. Or, alternatively, you can flag it (which alerts moderators and sufficiently high rep users) so that they'll get an eye on it. You can also go talk to other ServerFaulters in [The Comms Room][4]. Many of the folk who hang out in that chat room have sufficiently high rep to cast both close and reopen votes.


  [1]: https://i.sstatic.net/ZfSol.png
  [2]: https://serverfault.com/faq
  [3]: https://i.sstatic.net/Ab9QH.png
  [4]: http://chat.stackexchange.com/rooms/127/the-comms-room