unRAID 6 benchmarks

unRAID 6 benchmarks

unRAID 6 benchmarks

Now that I’ve got unRAID up & running I thought it would be interesting to run some benchmarks so I could determine what kind of speed to expect. Bear in mind this is without a cache device installed as I am waiting on my SATA controller to arrive before installing the SSD. Why? The optical drive SATA port runs at SATA I speeds, hence the reason for buying the additional SATA controller. This way I can have 4 drives in the bay slots and the cache drive hooked into the second SATA controller.

The program I used to run these benchmarks is called ‘CrystalDiskMark‘. CrystalDiskMark is designed to quickly test the performance of your hard drives. The program allows you to measure sequential and random read/write speeds for a specific drive. In order to test unRAID I needed to mount one of the unRAID NAS shares as a volume within Windows (N:).

This is 5 x 4GB passes with two WD Red 3TB drives, one of which is acting as a parity disk:

unRAID benchmark speeds

And here are the results with 5 x 1 GB passes:

unRaid benchmark speeds

I don’t think that’s too bad considering I don’t have a cache device set up yet. With a cache device I think I should be hitting much higher numbers because I won’t need to read/write from the disk array. Still slower than my desktop mechanical drive for both sequential read and write speeds but I doubt I will notice the difference when it comes to real world usage – Hopefully anyway. Parity certainly had more of an impact on the speeds than I would have liked. My internal 1TB WD Blue mechanical drive clocked the below speeds. Much faster for sequential reads and writes but a hell of lot slower for the 4k metrics.

Desktop drive benchmark speeds
I might revisit this in the future when the SATA controller arrives so I can set up my cache device. Watch this space!

2 thoughts on “unRAID 6 benchmarks

  1. I'm thinking about installing unRAID on my machine so I can have the benefits of virtualization, but still use my machine as my gaming rig, but I'm looking for what other people are getting with unRAID…
    My machine it's a skylake 6100, 16gb RAM. I got an 256GB SSD, and some 2.5" HD's (500gb and 1tb).
    Do you think I can have some performance gains from having the SSD as cache?
    My plan is not about network share performance, my main concern is that local performance stay top, while having virtualization benefits.

  2. excellent points altogether, you just gained a new reader. What would you suggest in regards to your submit that you made some days in the past? Any positive?

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