For everyone that has replied, I have for the moment decided to go the Mac Mini route (1.4 GHz/4 GB). It seem to me the this had more computing power than any of the reasonably priced NAS boxes (think QNAP TS-453 Pro or DS415+). One of the factors that was important to me was that I would like to continue to use Logitech Media Server as I could run it on Mini but not on any of the NAS boxes I was considering.
So what has been my experience with the 2014 Mac Mini that I was hoping was going to be the best server option. I wanted to start my exploration with having a reliable networked Time Machine solution.
I began solution with the following configuration:Router ASUS RT-AC68U, 1.4 GHz Mini connected to the router running OS X server, and the WD Duo configured in RAID 1. Time Machine backups worked well in this configuration. However, when I learned that if I lost a drive on the Duo and it might take as long as week replace to rebuild the RAID 1 and have a computer tied up for week. I decided to change to JBOD.
With the Duo configured as JBOD and partitioned for each of the Mac laptops and Mini I was able to get initial Time Machine back-ups (i had the back-ups configured so that Time Machine back-ups would alternate between drives). Unfortunately, one of the Time Machine of the back-ups would ultimately become corrupted within a day or so and I would have to start over.
I thought maybe the issue was the WD Duo. So I went out and purchased two free standing drives that were connected via the USB ports on the Mini. I had the same issues with eventual corruption of the back-ups and had to start over.
After three weeks of Mini/OSX Server managing Time Machine back-ups I have concluded that networked Time Machine backups are not the way to go. if you want to use Time Machine for back-ups, the drive must be connected to your computer that you are backing up for any reliability.
I think what I find so disappointing about the Mini/OSX Server is how it stacks up against a 2008 HP MediaSmart Home Server running Window Home Server with it's single core 2.0 GHZ Celeron processor that I would like to replace because it's advancing age. While I am unable perform to Time Machine back-ups with the WHS, the Mini is not even 10% of the WHS machine.
Next strategy is to go back to a NAS for major storage and running Chronosync to maintain important files. Also, will continue with weekly Time Machine back-ups on a couple of portable drives that I will connect directly to my laptops.
Donald Barar
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