Hi all,

I am new to Unraid. I wanted to have a good local backup solution so I thought Unraid would be great. I have a HPe Microserver Gen 10 (I know not the best but thats what I have) with a 12 TB parity and 12 TB storage disk. I also have a 120 GB cache SSD. The server is connected to Gbit LAN and I get good GBit speeds with iperf3. However, when I am trying to copy my old backups onto the share, I have speeds that start at 20 MB/s and decay to about 8 MB/s. I am a little surprised by that. Do I have unrealistic expectations? Or is there something wrong with my setup? Attached: Diagnostics and a timeline of my latest copy session. 

I hope you may be able to help.

tower-diagnostics-20200314-2226.zip

That's on the slow side, is that writing to cache or array? Your cache device is likely slower than you expect, you also have a slow disk1, still try with turbo write enable and write directly to the array, it should be considerably faster.

Hey, thanks for the reply. Yes my cache drive is not the fastest. If I disable cache the speeds are even slower (8MB/s). I should have mentioned that after reading through the forum, I already activated Turbo Mode. Any other suggestions?

If you get those low speeds writing to cache and array (with or without turbo write) it suggest a problem outside Unraid, like network or source computer, see what you get running iperf test.

Hey, so I have been testing a few things. 1st Windows has a transfer rate > 60MB/s, which is awesome. Only MacOS has the terribly slow transfer rates. I tested two machines and both show the same thing. On the other hand iperf shows near GBit speeds.

When I mount the Share using NFS my write speeds go way up > 60MB/s sometimes 100MB/s for short periods of time.

So my take away is that the samba implementation on MacOS is terrible. Any ideas how to fix this? I cant be the only one experiencing this, right?

7 hours ago, vokalemilch said:

Any ideas how to fix this?

I don't use MacOS, but if you google MAC slow SMB you'll find a lot of results, and might find something that helps.

Hey, yeah. I tried most of them but for some reason none of the tips actually helped. I wished I could use NFS for timemachine backups. Well thanks for the help.