u/Sampl3x

Hi all,

I want to switch from Terramaster OS (TOS) to Unraid because the lack of updates from Terramster and would like some advice before I set things up.

My hardware:

• TerraMaster F4 SSD (4x NVMe slots, no HDD support)
• Goal is a fully NVMe-only setup (4 x Crucial 2TB NVME)

After reading multiple Reddit threads and forum posts, I’m a bit confused about the “right” approach in Unraid.

From what I understand:

• Using NVMe/SSD in the main array is not recommended (no TRIM, potential long-term performance issues)
• Most people suggest using pools instead of the array
• ZFS (RAIDZ1 or mirrors) seems to be the preferred option for NVMe-only setups

My questions:

1. Is it correct that for an NVMe-only system, I should avoid the array completely and just use a ZFS pool or can i use XFS?
2. Does Unraid still require a disk in the array, or is a pool-only setup fully supported nowadays?
3. For 4x NVMe, what would you recommend:
   • RAIDZ1?
4. Are there any downsides I should be aware of when running apps/VMs/shares entirely on a ZFS pool?
5. Is there any valid use case where putting NVMe drives in the array would still make sense?

Use case:

• Docker containers (Plex, *arr stack, uptimekuma, etc.)
• General storage (no massive bulk data, media)

I’m mainly aiming for a quiet and reliable setup, maximum capacity, redundacy.

Any best practices or “gotchas” specific to NVMe-only builds on Unraid would be greatly appreciated.

Thanks you adnvance!

Having a F4 SSD nas im must say Terramaster is realy slow with bringing out new firmware updates. A package like Docker is realy an old version, no security updates. No new firmware out now for more then 5 months now for TOS6 :(

With Synology you see a lot more updates.