April 13, 20179 yr I have a 250GB SSD as my cache drive, I use it for fast writes on common user shares and storage locations for a couple of Windows VM's I have running. I originally ordered a 2nd SSD with the intent to create a pool but I'm 2nd guessing that original decision. Here's why... The only data that a route thru the cache are media (Movies and TVShows) so that I can take advantage of the speed. Loosing a Movie would not be a major concern. I back up my VM's daily so should the SSD have issues recovery would be simple. With those two points in consideration the advantage of a pool sounds limited to me and I'm thinking that maybe I just use the 2nd SSD as either a mounted drive or a drive in the array that is simple reserved for my VM's and let the existing SSD handle just file caching duties. What do you guys think.....any other creative ideas...? I have the 2nd SSD just need to figure out what to do with it.
April 13, 20179 yr Writes to SSDs in the array would be limited by the parity drive speed. Personally I think letting unRAID manage it as part of the cache pool is simplest option. If you don't want the redundancy of raid1 you can do raid0 to add capacity.
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