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Sequential Data Transfer By Size
Thecus' W5000 delivers acceptable sequential read performance at larger block sizes. However, the system trails its competition, including Seagate's NAS Pro and Western Digital's My Cloud DL4100, both of which also employ low-power Atom processors.
Windows Storage Spaces won't give you the same level of performance as hardware RAID, FreeBSD or Linux-based operating systems. As an example, I recently built a large dual-Xeon server with 32 mixed SSDs and hard drives. In Windows, its write speed hovers around 700 MB/s. And once it's outside of buffers and cache, performance drops to less than 100 MB/s. In Linux, the same hardware delivers over 2000 MB/s. WSS suffers a real performance deficit when writing data.
In today's test, we see that same low sequential write performance outside of the buffers. Our benchmark takes place after the system has exhausted its cache, so we see real disk performance in RAID 5 built using Storage Spaces.
