Suitability of legacy 12-bay rack-mount ReadyNAS units for home use

I've been running my 4200V2 for a while now, so I thought I'd add to this review.

As for the XRAID expandability with multiple volumes -- definately a no-go.  I guess I just got lucky once.  I tried it several times, and never succeeded a second time.  And I was done doing all the factory defaults and experiments and wanted to let it run a while.  FlexRAID is still expandable, just not with as many options for mixing drive sizes as XRAID.

I have my 4200V2 in a spare room in my Florida home that has the A/C vent closed.  It recently hit 89F outside and was in the 90's in that room.  Still, the drives in the 4200 were running cooler than the drives in my Pro6 in the air conditioned computer room kept at 75F.  I guess that wind tunnel created by the fans is there for a reason.  How much the 4200 aided in the room temp reaching into the 90's, I can't say.  But I'm sure it contributed.  Ultimately, I plan this to be a backup unit that powers on periodically, but I wanted to see how hot it would run.  So far, it looks good.

Oh, and I did mis-speak about the 4200V1.  4 of the drive slots on it can handle drives larger than 2TB.  It's at least some consolation.