Question

Two Crucial BX100's 250gb SSD in BTFRS cache pool or a Samsung EVO 850 500 SSD for cache?  Does it make that big of difference?  (Both options are about the same price)

With the 2 250G drives, you would have a cache pool of 250G, with protection such that if one of the SSDs fails, you have not lose data. Very much like RAID1.

With the 1 500G SSD, you have have a cache disk of 500G, with no protection. If the SSD failed, you'd lose its contents (if not backed up).

With the 2 250G drives, you would have a cache pool of 250G, with protection such that if one of the SSDs fails, you have not lose data. Very much like RAID1.

 

With the 1 500G SSD, you have have a cache disk of 500G, with no protection. If the SSD failed, you'd lose its contents (if not backed up).

Hmmm...    So as long as I backup my Dockers/VM's folder periodically I should be okay....  I will have to ponder this....

I use a pair of 500GB BX100 for my cache pool.  They're quick, cool running and sip power.  No regrets at all with them.

I have them in one of these, so only 1 SATA power required, and it fills an otherwise empty external 3.5" bay:

http://www.amazon.com/MB992SK-B-2x2-5inch-Mobile-3-5inch-Device/dp/B009QX4BPC/

I'd definitely use a pool => there's no reason to use an unprotected cache now that UnRAID provides the pooling option.  Want more space?  Buy bigger SSDs 

Starting the process....  I'm going to sell the Antec 300.  Ordered a Fractal Define R5...  It'll be here Monday. 

I'm going to go with the BX100's.  One to start...  Another in a couple of weeks after I get the other parts....