TerraMaster F5-422 5-Bay 10GbE NAS – Excellent Value for 10GbE SMB NAS Users


4K Random Read Performance

4KB Random workloads represent common small file workloads. Here we will look at both 4KB Random Read, Write, and Mixed benchmarks.

TerraMaster F5 422 4KB Random Read
TerraMaster F5 422 4KB Random Read

With small 4K Random workloads, the TerraMaster F5-422 is hard-pressed to hold a solid median line and generates a large number of outliners, we will see this trend in the following benchmarks.

4K Random Write Performance

Here is a view of the 4K random write IOPS.

TerraMaster F5 422 4KB Random Write
TerraMaster F5 422 4KB Random Write

4K Random Mixed Workload Performance

We again can move into a mixed scenario:

TerraMaster F5 422 4KB Mixed Workload 256 OIO
TerraMaster F5 422 4KB Mixed Workload 256 OIO

4K Random workload performance benchmarks show the TerraMaster F5-422 struggles in this area. Keep in mind the F5-422 uses an Intel Celeron J3455 1.5 GHz Quad-core processor and only 4GB RAM for 10GbE operations.

Also, hammering a lower-end NAS like this is a worst-case workload rather than something on will see in real deployments.

Let us continue with Server Workloads.


  1. Hope this trend continues. I think a lot of readers view this as a sweet spot with HD count and 10gb. Of course I wish the prices was half of what they are but hey this is low volume prosumer gear. I would like to add that just a case for 4 or 5 hard drives with nothing else costs north of $100 (new). I’m using a small dell tower for my personal nas and was looking for a convenient way to mount the drives… double sided tape and a case fan were more in my budget xd

  2. I’d be interested in seeing results from a raid 10 or 0 array, just to see the best possible numbers this box can dish out. (understanding the disadvantages of not having any protection in raid 0, and the loss of extra capacity at raid 10).

  3. I think it would be good to precise what file system is used on the Test Setup for the different NAS storages compared.
    Because from my understanding TerraMaster F5-422 is using Btrfs file system by default, which some are accusing of delivering lower throughput, especially in high I/O demanding processes and when using 10GBe connection (the bottleneck could be far less visible for 1GBe connection). This is why QNAP doesn’t want to support Btrfs for now.. And while Synology support Btrfs, I’m not sure it is set by default.
    In addition F5-422 supports EXT4 also, so maybe the performance could be a little better with different file system?

  4. > After turning on the NAS, connecting it to your network, type in “start.terra-master.com” in your browser to bring up the Quick Installation Guide.

    I would not buy a NAS that requires internet and manufacturer’s website to be able to configure my local device. Would it be a brick if their website gone down?


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