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1GbE speeds over 10GbE connections? MacOS
I was wondering if anyone is having this same expereince. I have a new 626x, all drives filled, x-raid, connected to a Netgear XS708E 10GbE router, and I'm getting very slow speeds over 10GbE. Not ev...
mdgm wrote:
I was thinking e.g. a 5400RPM hard disk in an iMac could be a bottleneck.
I agree that could easily be it. iPerf would measure just the network, so the disks in the NAS and the iMAC wouldn't factor in - so it would help isolate the cause.
Can you copy from the thunderbolt RAID array to the NAS? That's another way to take the imac disk out of the equation.
mdgm wrote:
With Jumbo Frames finding the right MTU for your environment can take a bit of work. I'm not sure if/how well Jumbo Frames work with 10G.
Though they should work just fine, I see no need for them with 10G. So I would just turn them off, and use the normal 1500 MTU.
Also, if iPv6 is enabled in the NAS, try disabling it.
I was thinking e.g. a 5400RPM hard disk in an iMac could be a bottleneck.
You could try disabling Jumbo Frames and seeing what the performance is like with the default MTU.
With Jumbo Frames finding the right MTU for your environment can take a bit of work. I'm not sure if/how well Jumbo Frames work with 10G.
mdgm wrote:
I was thinking e.g. a 5400RPM hard disk in an iMac could be a bottleneck.
I agree that could easily be it. iPerf would measure just the network, so the disks in the NAS and the iMAC wouldn't factor in - so it would help isolate the cause.
Can you copy from the thunderbolt RAID array to the NAS? That's another way to take the imac disk out of the equation.
mdgm wrote:
With Jumbo Frames finding the right MTU for your environment can take a bit of work. I'm not sure if/how well Jumbo Frames work with 10G.
Though they should work just fine, I see no need for them with 10G. So I would just turn them off, and use the normal 1500 MTU.
Also, if iPv6 is enabled in the NAS, try disabling it.
The 626x is being accessed by a 2013 mac pro, 1 TB ssd. But I was copying from the thunderbolt raid to the nas. It's definitly not the host computer hard drive, although that would be even faster. I was using AJA and Blackmagic disk tests to check the transfer speed on the nas.
Pv6 is enabled on the nas. I disabled it on one of the ports and now that port has disapeared from the network page.
The 10GbE port showed back up when I logged out and back into admin page.
I think disabling iPv6 did the trick.
I'm now getting writes in the 400-600 range and reads in the 600-700 range.
Thank you so much!
I'm glad we could help.
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