NAS Storage Performance Benchmarks

File copy performance

We'll also look with a file-explorer-copy, and some storage utilities to see what performance is like. Basically, we make a network share and measure the storage unit. It is the most simple test but for any centralized network-based storage probably the most used copy feature, making it a very important one. The most basic and simple test anyone can perform. We simply drop a compressed MKV file onto the NAS. 

2.5 GigE copy towards NAS (1x SSD), the small perf drops are actually TLC NAND write holes of the SSD, so that is not a NAS bottleneck.

2.5 GigE copy from NAS towards client-side PC (1x SSD).

An SSD will max out the 2.5 GigE Ethernet connection of course. But to transfer files at these speeds over your LAN, that's just very nice. 

Atto Disk Benchmark

One of the more common tools available to measure storage performance is ATTO. It is very reliable and produces accurate results. The great thing about ATTO is that we can test with predefined block sizes. So we can test with a 32 MB sequence of 4 KB files, yet also 32 MB in 1 MB files. This gives us a pretty good overview of overall performance with small and large files in a queue.
 

Above the measurements on the 2.5 GigE connection. You can see that the write performance is a bit more difficult, small block files will introduce latency over a lengthy ethernet cable. We tested with a 5 meter cable btw. But still, that easily double anything with one Gigabit.