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Level 1

63 points

iMac Pro + NAS + 10GBe ... Full Speed Finally

This may have been covered already, but I've spent the morning figuring out how to get full speed over 10GB ethernet.

On NAS:

- Turn off all file services except for SMB (ie - no AFP).

- Make sure MTU is same as iMac Pro and ethernet switch (if using one). MTU doesn't need to be 9000 ... 1500 is fine as long as all devices in the chain are also set to 1500.

On iMac Pro:

- turn off SMB packet signing. Other tutorials I've found on internet haven't worked for me ... official Apple instructions worked great.

https://support.apple.com/en-us/HT205926

Just a friendly public service announcement ;-)

iMac Pro (2017)

Posted on Feb 26, 2018 2:46 PM

Best reply

rehctelf Author

Level 1

63 points

Posted on Feb 28, 2018 12:05 PM

UPDATE:

OK, have been playing with it for a few days ... ended up no ethernet switch, direct connect cable (100ft CAT 7) from iMac Pro 10GBe to the Synology 1517+ NAS 10GBe (aftermarket Intel x540-T2 card added), RAID 10 (4 x 8TB WD Red), just SMB with no packet signing.

Blackmagic Speed Test says 444MB/s write and 488MB/s read. iStat Menu says 464MB/s write and 572MB/s read when actually transferring files. It isn't saturating the 10Gb ethernet, so I assume I have maxed out RAID 10 disk array (I might try sticking some SSDs in there just to see how fast I can get it). Nonetheless, this thing is freakin' speedy ;-)

No problem working with 4k files in FCPX ... amazing and relatively cheap solution.

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iMac Pro + NAS + 10GBe ... Full Speed Finally

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