Considering buying Ultra 4

PapaBear wrote:
To avoid the 8TB expansion limit (for a long while), I would add the drives one at a time starting with the 500GB. I would even include the 2TB for the full 4 disk array. Once the volume has been established, I would then do a factory default before you do any configuration changes or add any data. This would establish the initial volume at 4.5TB...

You can do that, but it will take a lot of time restriping the drives over and over. I would start with all drives inserted on the original power up.

On the plex server - The transcoding capabilities of the Ultra are more limited than the Pro. Some posters here have found the ultra to be good enough for their media, others have found that they needed a pro. I would price them both, and then decide if the faster CPU, ethernet teaming, and the longer warranty are worth the higher cost to you.