Hi, we have problems with our 10GbE network speeds and need help. This is the setup:
There are ten workstations here (lenovo p700s with dual 14core xeons, 64gb ram), each with a Sun Dual Port 10GbE PCIe 2.0 Adapter (Intel x540-T2) Base-T (which we got for cheap on ebay). All the NICs have the default windows drivers installed.
All cabling is rated CAT7 (https://www.amazon.de/gp/product/B07W7TFN3C/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1), none of the cables is longer than 15m. Finally, the switch in use is the Netgear ProSafe XS716-T with 16 ports, all ports' LEDs show 10GbE connectivity with the exception of the 1GbE cable that comes from the router/DHCP and one from an old license server. The switch is basically un-tweaked plain vanilla with the exception of jumbo frames/MTUs set to 9000 to match those set in the Nic and NAS.
Now this is all fine and dandy BUT we cannot get any file to transfer across the network (tested from a Synology DS1718 NAS with 6 Exos X10s in RAID 10 to a local SSD) with speeds exceeding 2Gbit/s. ...kinda underwhelming and I am at a loss here with regards to what to check.
I ran iPerf3 between four machines on the network (tested two connections between two different systems) to check if the network or the disc performance was the culprit and it seems to be the network: All connections max out at around 2Gbit/s on iperf, not even spikes above that. Ever.
I triple checkd the NIC settings and in the switch there really is not much to get wrong... or is there? I am really at a loss here, so any help is greatly appreciated!
There are ten workstations here (lenovo p700s with dual 14core xeons, 64gb ram), each with a Sun Dual Port 10GbE PCIe 2.0 Adapter (Intel x540-T2) Base-T (which we got for cheap on ebay). All the NICs have the default windows drivers installed.
All cabling is rated CAT7 (https://www.amazon.de/gp/product/B07W7TFN3C/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1), none of the cables is longer than 15m. Finally, the switch in use is the Netgear ProSafe XS716-T with 16 ports, all ports' LEDs show 10GbE connectivity with the exception of the 1GbE cable that comes from the router/DHCP and one from an old license server. The switch is basically un-tweaked plain vanilla with the exception of jumbo frames/MTUs set to 9000 to match those set in the Nic and NAS.
Now this is all fine and dandy BUT we cannot get any file to transfer across the network (tested from a Synology DS1718 NAS with 6 Exos X10s in RAID 10 to a local SSD) with speeds exceeding 2Gbit/s. ...kinda underwhelming and I am at a loss here with regards to what to check.
I ran iPerf3 between four machines on the network (tested two connections between two different systems) to check if the network or the disc performance was the culprit and it seems to be the network: All connections max out at around 2Gbit/s on iperf, not even spikes above that. Ever.
I triple checkd the NIC settings and in the switch there really is not much to get wrong... or is there? I am really at a loss here, so any help is greatly appreciated!