ibquan

I re-upgraded to 6.8.1 again tonight to see if I can figure out the cause of the speed drop but came up empty. I turned on disk shares and tested it and noticed that the transfer speed to the cache disk share remained the same on both 6.7.2 and 6.8.1 at around 700-750MB/s. So whatever the issue is, it seems like the user share transfer was the only one that was hit with this approximately 200+ MB/s drop. My Unraid server 10G network hardware : - 1 Mellanox ConnectX-2 PCIe x8 NIC 10G Dual Port Server Adapter 81Y1541 - 2 Avago AFBR-703ASDZ-E2 10GbE Ethernet 10GBASE-SR SFP+ Transcievers - 2 5m LC-LC OM3 Multimode Fiber Optic Patch cables My Client PC 10 G network hardware : - 1 MNPA19-XTR 10GB MELLANOX CONNECTX-2 PCI-E 10G SFP+ NETWORK CARD - 1 10G SFP+ DAC Cable - 10GBASE-CU Passive Direct Attach Copper Twinax SFP Cable Everything is connected to a MikroTik CRS309-1G-8S+ with 8 SFP+ 10Gbps Ports running SwitchOS The above setup have been working fine for the past 2 years and nothing was changed when the upgrade to 6.8.1 was done. I've tested without going through the Microtik switch and also with just using the 2 fiber patch cables instead of the Twinax and same result.

I have noticed the same thing as glennv with regards to user shares transfer speed on 6.8.1. My write speed over my 10Gb network to NVMe cache drive on 6.7.2 usually hovers around 500-600MB/s but it dropped to around 300-350 MB/s when I upgraded to 6.8.1. I reverted back to 6.7.2 and the transfer speed went back to the previously observed speed of 500-600MB/s. There appear to be some issues going on with 6.8.1 with regards to user shares transfer speed so I will stick with 6.7.2 for now as well.