January 22, 20215 yr A few months ago I had my first tests with unraid. What always bothered me was the slow write speed without cache drive of max. 35MB/s. And many have already reported about it Despite this fact I decided a few days ago to use unraid 6.8.3 with 2 x cache SanDisk_Ultra_II_480GB as cache drive and 3 x WD Red Plus 6TB. (Board: Asus Prime B350-Plus, AMD Ryzen 7 1700, 32GB DDR4) (Plugins: CA Auto Turbo Write Mode, Open Files, Dynamix System Statistics,Nerd Tools) What I see now is a consistent write speed of 112 mb/s even on shares without cache drive (Gigabit Network connection). Tests with 50GB test files (112 mb/s write speed on unraid not cached share) Tests with 50GB data small test files (70 - 100 mb/s write speed on unraid not cached share) I see in the stats that the first thing that fills up is the memory, everything is ok so far. But even then, the data rate does not collapse. I also check the cache drive and it is indeed not used. My concerns are that the parity drive is not consistent and if a drive fails I will lose data. So I reset the statistics of the disks to see if the parity disk writes as much as the data disk and that is also the case. Compared to my first tests and the problem with the slow write speed without cache drive, this seems strange to me or what do you think? I'm probably the first, to open a thread because unraid is too fast🙂 Greetings from the Black Forest Claudio
January 22, 20215 yr Turbo or not? https://wiki.unraid.net/UnRAID_6/Storage_Management#Array_Write_Modes
January 22, 20215 yr Author by default "Auto" but i think the Plugin CA Auto Turbo Write Mode will automatically switch to turbo mode. Edited January 22, 20215 yr by Claudio
Archived
This topic is now archived and is closed to further replies.