I just bought a used TS-431P. It's been reset to factory defaults and updated to firmware 4.5.4.1715. It has four 4TB WD Purple HDDs in RAID6.
Created two NFS shares for my VMware ESXi 6.5 lab servers - one for NFS 3 and one for NFS 4.1 - and disabled write caching as recommended.
However, on any one of them I only get around 11MB/s. I tried copying some files from my Windows 10 PC (through NFS 3) but also got 11MB/s.
However, when I access the exact same share through CIFS from my PC, I get an inconsistent (but good) speed from 65MB/s to over 85MB/s.
I checked the switch, VMware servers and the NAS, and all is at 1Gb/s. If it was not, my Win10 PC couldn't have reached 85MB/s through CIFS.
Any clue on what's going on? Why is NFS this much slower than CIFS?
Paulo
Slow NFS but fast CIFS
Discussion about using NAS on Linux and Unix OS.
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