Robbbbo666

Further to this I "MAY" buy a second drive so it can be protected from failures in the future.

I am getting the below I/O error on a Sata SSD. I am pretty sure there are some app files on the drive, what do I do from here? I want to buy a new Sata SSD in a different size (500G probably). Is it a matter of shutting down the server, Removing the drive using something like Crucial software to copy the contents over and refitting the new drive?

Thanks! I'll look into the link you posted and set that up. The redundancy I don't think is important in my use case but I will do some digging and see what I require and decide from there i may even be able to get a 3rd drive into the PCIe slot as a L2ARC drive for the time being so I can test how the boot drive is going/see the benefits of using a m.2 for meta data

I have recently setup my hex os nas and my mobile has 2 m.2 slots currently both are populated with 256GB drives as I had a heap from old machines. I set it up so there is a redundant boot on the second drive. Is there a better way to set it up? Can it be used as cache? I have a spare 1TB drive, that any better? I saw somewhere about potentially using an m.2 to hold Plex thumbnails etc to make it snappier than from reading it direct from the HDD array, is that a use case? If so how do I go about it? Specs: AMD 5700G with 16gb 2666mhz ram on an ITX B550 board