December 2, 20241 yr Unraid server configuration: CPU: e3-1245 v5 Motherboard: MSI C236A WORKSTATION Memory: DDR4 2133 32G NIC: Intel 82599ES 10-Gigabit SFI/SFP+ Hard Disk: disk ATA SSD HEORIADY HX- 0A0 /dev/sdb 128GB disk HP MB6000FEDAU HPD1 /dev/sdc 6.00TB disk HP MB6000FEDAU HPD1 /dev/sdd 6.00TB disk HP MB6000FEDAU HPD1 /dev/sde 6.00TB disk HP MB6000FEDAU HPD1 /dev/sdf 6.00TB disk SEAGATE ST6000NM0034 MS2D /dev/sdg 6.00TB disk SEAGATE ST6000NM0034 MS2D /dev/sdh 6.00TB disk SEAGATE ST6000NM0034 MS2D /dev/sdi 6.00TB disk SEAGATE ST6000NM0034 MS2E /dev/sdj 6.00TB disk INTEL MEMPEK1J016GAH__1 /dev/nvme0n1 14.4GB where the specific arrays are shown in the figure: The eight 6T mechanical disks are all connected via an LSI SAS2308 array, connected to the PCI-e3.0 x4 slot on the motherboard, which theoretically won't be any slower than a 10Gbps network speed, and won't cause a bottleneck in the hard drive transfers This is the speed of various arrays tested by others I found online: Below is the speed I tested by connecting to zfspool, via an ISCSI virtual disk: Where Q1T1 performance is normal ？？？？？？？？？？？？？？？ It's really amazing, excuse my limited knowledge, I don't know how to explain and deal with such a situation
December 2, 20241 yr Community Expert 2 hours ago, 金针菇上单 said: Below is the speed I tested by connecting to zfspool, via an ISCSI virtual disk: Repeat using SMB.
December 3, 20241 yr Author 22 hours ago, JorgeB said: Repeat using SMB. When using the SMB protocol, it's pretty much the same after the out-of-cache
December 3, 20241 yr Community Expert Speed starts fast and then decreases once the RAM cache is exhausted, suggesting a device issue, try creating a single pool device with one of the disks and retest with at least two different disks, in case there's an issue with one of them, even a single disk pool should be faster than that.
December 9, 20241 yr Author On 12/3/2024 at 6:15 PM, JorgeB said: Speed starts fast and then decreases once the RAM cache is exhausted, suggesting a device issue, try creating a single pool device with one of the disks and retest with at least two different disks, in case there's an issue with one of them, even a single disk pool should be faster than that. I used MyDIsk to run the test, not directly a hard disk to split a pool to test, the results of MyDisk test show that the speed of 8 hard disk are normal, including 4 Toshiba 6T hard disk read 190m/s, write 140m/s, 4 Seagate 6t hard disk even faster!
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