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Slow Raid 50

PostPosted: January 13th, 2018, 8:04 pm
by cc8163
Dear I bought this device last year around August. The Rev behind the device is .4.
OS´╝ÜWindows 10 Enterprise
Model No: H8R2-SU3S2 Rev.4
SN:16100110
I use 8 4TB NAS HDD(Same Brand HDD from HGST NAS) with 7200 RPM to set it up with RAID 50. Everything goes smoothly until I run the HDD benchmark test. It looks like the usb 3.0 speed is very slow only 12-30 MB/s. My single portable HDD (5400 RPM) with USB 3.0 can reach around 60-120 MB/S. Theoretically, RAID 50 suppose to be faster than unraid single HDD. I am just wondering which part I set wrong. Please help, thank you~~! :? :? :? :?