Hello, I am trying unraid and so far loving it. I am planning to use a NVME ssd only for storing VMs and Docker containers. So the questions:
 

- For this configuration should I configure the NVME as a cache or as an unassigned device?

- In the future, when I upgrade the machine to have multiple ethernet ports, I will be limited by the array speed, so I will need to add a sata ssd cache pool. Can I have the sata ssd cache pool exclusively for cache and the NVME exclusively for docker containers and VMs?

 

Thanks for the help!

With just the NVMe device I would use it as cache for now, so you could also cache some writes, assuming the available space is enough, but if you plan to add a cache pool soon probably best to use it as unassigned device from the start, also yes to the second question.