aneelley Posted April 3, 2023 Share Posted April 3, 2023 When I try to export a NFS mount from my Synology server over to my unRAID server, I am able to mount it with no issue. However, when I try to just do a simple ls to confirm I can see the data in the mount, it just hangs and I am unable to ctrl-c out of it. If I go to look at the shares on the unRAID server, that also hangs for ~10 minutes and then gives up. I need some help trying to troubleshoot. If someone can point me in the right direction on where to look for logs, that could help a bit. I looked in /var/log/messages but found nothing so that may be the wrong location. Let me know. Quote Link to comment
aneelley Posted April 3, 2023 Author Share Posted April 3, 2023 I should also add that when I try to stop the unRAID server so that I can remove the NFS mount, it won't stop. It just hangs. Quote Link to comment
aneelley Posted April 3, 2023 Author Share Posted April 3, 2023 I have been able to figure it out. I disabled jumbo frames (MTU 9000) by setting it back to a MTU size of 1500. I was then able to utilize the NFS mount as desired. I do have a few questions though. Why is it recommended to have a MTU size of 1500? Is technology better now and MTU 9000 is no longer needed? It was my thought that a MTU size of 9000 would allow bigger frames to be transmitted at once thereby giving more throughput and utilizing my network bond. I am running a bond of 4 network ports (at least for now until I can get 10GbE configured) and didn't know if that came into play. Quote Link to comment
dlandon Posted April 3, 2023 Share Posted April 3, 2023 Using Jumbo frames requires you set up all your network devices properely - router, switches, and all devices. It's not that easy. Quote Link to comment
aneelley Posted April 4, 2023 Author Share Posted April 4, 2023 Good point. I DIDN'T have it set up on the switch which was probably why. New switch will be here tomorrow so maybe I will try it out again. Quote Link to comment
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