[[SOLVED] Really slow (50 MB/s) transfer speed between disks on UnRaid - Even with parity turned off]

15 minutes ago, JorgeB said:

Likely, especially if it's faster from a different device.

Thanks again for all the help JorgeB.  I'll know what to do to solve this particular problem in the future.

[[SOLVED] Really slow (50 MB/s) transfer speed between disks on UnRaid - Even with parity turned off]

7 hours ago, JorgeB said:

That looks normal, what's the source device? Also to rule out anything array related assign one disk as a single pool and tranfer to it, if it's still slow it's likely a source problem.

The source device is an old SATA hdd so maybe that's why the transfer speed is so slow.  When i am copying the same file from a M2 ssd to my NAS it's 100mb/s.  I also installed the unassigned device plugin but i don't have the place to add an extra disk/ssd in my NAS because it's already filled with eight 4TB hdd's.

[[SOLVED] Really slow (50 MB/s) transfer speed between disks on UnRaid - Even with parity turned off]

2 hours ago, JorgeB said:

And the source is fast? From what I've seen so far looks more like source problems, do you have a different computer you can test with? Also run a diskspeed docker read test to confirm disks and controller are performing as expected.

I don't have another pc to test this particular problem.  The files that i mostly transfer to my NAS device are mkv, m2ts & flac files.  See attachment for more information on the Diskspeed results.

[[SOLVED] Really slow (50 MB/s) transfer speed between disks on UnRaid - Even with parity turned off]

1 hour ago, JorgeB said:

iperf3 -c server_IP -R

 

 

[  4]   0.00-1.00   sec   113 MBytes   951 Mbits/sec
[  4]   1.00-2.00   sec   113 MBytes   945 Mbits/sec
[  4]   2.00-3.00   sec   113 MBytes   949 Mbits/sec
[  4]   3.00-4.00   sec   113 MBytes   948 Mbits/sec
[  4]   4.00-5.00   sec   113 MBytes   947 Mbits/sec
[  4]   5.00-6.00   sec   113 MBytes   946 Mbits/sec
[  4]   6.00-7.00   sec   113 MBytes   948 Mbits/sec
[  4]   7.00-8.00   sec   113 MBytes   945 Mbits/sec
[  4]   8.00-9.00   sec   113 MBytes   947 Mbits/sec
[  4]   9.00-10.00  sec   109 MBytes   918 Mbits/sec

Except from that the problem still exist with a maximum transfer speed between 50mb/s & 60mb/s when i am transfering data between my pc and the server.

[[SOLVED] Really slow (50 MB/s) transfer speed between disks on UnRaid - Even with parity turned off]

1 hour ago, JorgeB said:

That looks good, is that from the pc to the server? I had asked for both directions. 

 

This is from the pc to the server but i don't know how i can manage this from the server to the pc?  If you can help me on the way that would be grateful.

[[SOLVED] Really slow (50 MB/s) transfer speed between disks on UnRaid - Even with parity turned off]

2 hours ago, JorgeB said:

Disks are writing faster than that, suggesting you have a LAN issue, run a single stream iperf test in both directions.

After a lot of trial and error i received the following:

[  4]   0.00-1.00   sec   112 MBytes   943 Mbits/sec
[  4]   1.00-2.00   sec   113 MBytes   947 Mbits/sec
[  4]   2.00-3.00   sec   113 MBytes   946 Mbits/sec
[  4]   3.00-4.00   sec   113 MBytes   949 Mbits/sec
[  4]   4.00-5.00   sec   112 MBytes   943 Mbits/sec
[  4]   5.00-6.00   sec   113 MBytes   947 Mbits/sec
[  4]   6.00-7.00   sec   113 MBytes   944 Mbits/sec
[  4]   7.00-8.00   sec   112 MBytes   944 Mbits/sec
[  4]   8.00-9.00   sec   113 MBytes   947 Mbits/sec
[  4]   9.00-10.00  sec   113 MBytes   949 Mbits/sec

So i installed iperf3 on my server and i used the iperf3 tool on W10 after using iperf3.exe -c and the ip address.

[[SOLVED] Really slow (50 MB/s) transfer speed between disks on UnRaid - Even with parity turned off]

11 hours ago, Kilrah said:

You start a transfer and while that's running go grab the diagnostics?

 

 

bobken-diagnostics-20230310-1955.zip

[[SOLVED] Really slow (50 MB/s) transfer speed between disks on UnRaid - Even with parity turned off]

7 hours ago, Kilrah said:

No diags attached.

How can i attach diags during a transfer?

[[SOLVED] Really slow (50 MB/s) transfer speed between disks on UnRaid - Even with parity turned off]

On 3/8/2023 at 9:23 AM, JorgeB said:

 

See attachment for more information.

[[SOLVED] Really slow (50 MB/s) transfer speed between disks on UnRaid - Even with parity turned off]

1 hour ago, JorgeB said:

Are these SMR disks? Post the diags during a transfer.

 

I checked a list of Seagate disks and it says that ST4000DM000 are CMR disks.

[[SOLVED] Really slow (50 MB/s) transfer speed between disks on UnRaid - Even with parity turned off]

On 3/6/2023 at 10:16 AM, JorgeB said:

Yes, finish the parity sync first then you can use turbo write.

 

Hi JorgeB, 

I really don't know what the problem is with the transfer speed between my desktop pc and my NAS device but i runned the parity check again and changed Tunable (md_write_method) into reconstruct writes afterwards but it's still maximum 50mb/s.  Why is this so slow?

I don't have the option to use a cache disk so i am just running 8 Seagate Barracuda 4TB disks and two of them are parity.

[[SOLVED] Really slow (50 MB/s) transfer speed between disks on UnRaid - Even with parity turned off]

14 minutes ago, Kilrah said:

As mentioned pausing a parity check/sync only suspends checking/calculating the rest of the disk, parity is still updated realtime for any writes that are being done.

You cannot suspend parity without unassigning all parity drives and rebuilding them entirely later (and having no protection for that duration).

 

You also don't have Reconstruct writes enabled.

Thanks for your reply so if i understand this correctly i'll have to run the parity check again and i changed Tunable (md_write_method) into reconstruct writes.

[[SOLVED] Really slow (50 MB/s) transfer speed between disks on UnRaid - Even with parity turned off]

Hi JorgeB,

I have the same problem as jbssm.  The parity check is disabled and i am using 8 4TB disks.  Two disks of them are parity so i don't lose any data. The maximum transfer speed is still 50mb/s.  

 

 

bobken-diagnostics-20230305-1515.zip

[Cannot connect to unRaid shares from Windows 10]

4 minutes ago, trurl said:

You need to create a user on Unraid 

Hi trurl,

You made my day.  Problem solved.

Thanks again for everything.

[Cannot connect to unRaid shares from Windows 10]

Hi guys,

I have the same problem when i want to map a network drive in Windows 10.  I can access my UNRAID gui with root and password and i also see my shared network folder but when i want to access it i really don't know what my username and password is.

I'am feeling terribly stupid at the moment but i don't know how to solve it.

Thanks in advance.