![]() Default is sync=standard (aka listen to what the OS/App tells it)."ĭoing that resolved the issue immediately. You may not want that in production, but if it immediately brings performance with AJA System Test to expectations, it lets us know sync writes are the problem. If you can, try to set sync=disabled on the dataset ("zfs set sync=disabled /tank/xyz"). "What I suspect, rather than hardware issue, is that for some reason the new combination of software is causing the data AJA System Test is writing to all be O_Sync, which is in turn forcing it to flush immediately to disk rather than buffer in RAM and write sequentially, as it usually would. With that, Im guessing then that this has something to do with SMB in 11.1.įor anyone that was following this and perhaps saw similar problems.Īfter following up with AJA, they instructed me to turn off "sync" on the dataset I was testing with. Speeds were write = 600Mb/s and read = 800Mb/s. I also created an AFP share on the 11.1 instance. Please let me know if any specific logs would be valuable in diagnosing this further. On that note, I also tried adding that line in the global configuration in 11.1. Nor is there a place in Service > SMB to select the max protocol. the field "server MAX protocol = SMB3" is no longer in the global configuration. The only real difference I found in the 11.1 debug was in the SMB dump.txt file. I have debugs saved from both the 11.0-U4 instance and the 11.1-RELEASE instance. Our next step will be to test on Windows 10 to confirm this is a server side issue. I thought it might be a 10.13.1 Mac issue, but again, ran the same tests on a 10.12 instance and got the same results. We also have a media server with 5 vdevs and get the same settings.ĭoes anyone know why there would be a cap with 11.1 on write speeds? Seems pretty weird. This system has 3 vdevs, 8 disks a piece with 0TB used. I have tried with compression on (default LZ4) and compression off. Speeds wont go over 70-75Mb/s but write speeds are still up around 1000Mb/s. Thats how we have been doing benchmarks for 10Gb ethernet performance since about 9.2.18. These are generated by using AJA system test running 64GB file transfers at 4k. I get write speeds around 800Mb/s and read speeds of around 1000Mb/s. On FreeNAS 11.0-U4, everything is normal. I will start this off with I am very familiar with the nf fix for signing issues with Mac OS. ![]()
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