x130844
Dabbler
- Joined
- Oct 25, 2020
- Messages
- 46
Hi,
Here's the strangest thing, I had the same type of issue months ago, but can't remember how I fixed it (or maybe it fixed itself?) but after the upgrade to TrueNas, the problem is back with a vengeance.
3 Machines in this scenario:
Machine A: windows/dual boot Mac.
Machine B: truenas
Machine C: macOS
All connected to 10gbe Mikrotik switch. (latest switchOS version , SFP twinax + optical mix)
iperf3 between A to B
from A to B = 3gbit/s only. (that's the real problem).
B to A: full 9gbit/s or so. (great)
iperf3 between A and C:
9gbit/s both ways. Perfect.
iperf3 between B and C:
9gbit/s. both ways. Perfect.
=
Machine A seems to be the problem, but what's strange is that it is not software because I can recreate the speed issue if I reboot in windows as well.
And what's weirder to me, if Machine A has an issue, why would it get full speed, both ways when connecting to Machine C?
What am I missing?
(I had disabled flow control on all machines when I had FreeNAS 11.x, once upgraded to TrueNas, I had to disable flow control again.
I use the standard MTU, and I updated the firmware of the NIC on Machine A, same results). (I don't use any tunable. didn't need to in freenas 11).
How would one debug this?
I spent a good 8 hours trying to debug/research this.
Thank you!
- Motherboard: Gigabyte z87x- ud3h
- CPU: Intel i5 4570s
- RAM: 32GB
- Storage: 5 x 10TB WD (ATA WDC WD120EMFZ-11), RAID z1
- BootDrive: Samsung SSD eve 850 480GB
- LSI 9207-8i (HP H220 last with IT) SAS card.
- Chelsio T540-CR (10gb)
- Mikrotik switch for 10gb: CRS309-1G-8S+ (cables = optical (blue/teal). and SFP+ DAC twinax Cisco compatible on Finisar modules).
- Various other machines (Macs/PC/hackintosh) in network with Sonnet PCI SFP+ cards (Solo10G SFP+ PCIe Card)
Here's the strangest thing, I had the same type of issue months ago, but can't remember how I fixed it (or maybe it fixed itself?) but after the upgrade to TrueNas, the problem is back with a vengeance.
3 Machines in this scenario:
Machine A: windows/dual boot Mac.
Machine B: truenas
Machine C: macOS
All connected to 10gbe Mikrotik switch. (latest switchOS version , SFP twinax + optical mix)
iperf3 between A to B
from A to B = 3gbit/s only. (that's the real problem).
B to A: full 9gbit/s or so. (great)
iperf3 between A and C:
9gbit/s both ways. Perfect.
iperf3 between B and C:
9gbit/s. both ways. Perfect.
=
Machine A seems to be the problem, but what's strange is that it is not software because I can recreate the speed issue if I reboot in windows as well.
And what's weirder to me, if Machine A has an issue, why would it get full speed, both ways when connecting to Machine C?
What am I missing?
(I had disabled flow control on all machines when I had FreeNAS 11.x, once upgraded to TrueNas, I had to disable flow control again.
I use the standard MTU, and I updated the firmware of the NIC on Machine A, same results). (I don't use any tunable. didn't need to in freenas 11).
How would one debug this?
I spent a good 8 hours trying to debug/research this.
Thank you!