juledev

Ok turns out its an issue of my windows device (surprise), my other windows machine can copy to both array and pool at 100mb/s... Rebooting solved the issue, thanks for everyones patience...

So SCP seems pretty slow too, on both the pool and the array. Iperf is fine and local copy within the NAS is fast, pretty confused at this point. I also used dd to write to the pool and I'm getting: dd if=/dev/zero of=/mnt/data/zfstest/test.img bs=10G count=10 oflag=dsync dd: warning: partial read (2147479552 bytes); suggest iflag=fullblock 0+10 records in 0+10 records out 21474795520 bytes (21 GB, 20 GiB) copied, 18.3623 s, 1.2 GB/s Downloading a file from the internet also gives above 80mb/s (using wget, I have gigabit)

I did a basic pv copy test using ssh from the array to the pool and it was well above 300mb/s in both directions. I will try an SCP copy so we can know if it's an SMB issue.

Heres the newest version including the zfs pool. The original version can be found in the op. Thank you! jnas-diagnostics-20240331-1308.zip

Hmm so I created a zfs pool with 3 drives and raidz1, however my samba copy speeds are still extremly slow... Connecting to host 192.168.178.156, port 5201 [ 5] local 192.168.178.22 port 53088 connected to 192.168.178.156 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 114 MBytes 958 Mbits/sec 0 354 KBytes [ 5] 1.00-2.00 sec 113 MBytes 947 Mbits/sec 0 354 KBytes [ 5] 2.00-3.00 sec 111 MBytes 933 Mbits/sec 0 348 KBytes [ 5] 3.00-4.00 sec 112 MBytes 944 Mbits/sec 0 359 KBytes [ 5] 4.00-5.00 sec 111 MBytes 933 Mbits/sec 0 402 KBytes [ 5] 5.00-6.00 sec 112 MBytes 944 Mbits/sec 0 356 KBytes [ 5] 6.00-7.00 sec 111 MBytes 933 Mbits/sec 0 339 KBytes [ 5] 7.00-8.00 sec 112 MBytes 944 Mbits/sec 0 334 KBytes [ 5] 8.00-9.00 sec 112 MBytes 944 Mbits/sec 0 339 KBytes [ 5] 9.00-10.00 sec 111 MBytes 933 Mbits/sec 0 337 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 1.10 GBytes 941 Mbits/sec 0 sender [ 5] 0.00-10.00 sec 1.09 GBytes 939 Mbits/sec receiver iperf testing seems to be fine though...

Understood thanks. Would I then run the usb drive without a parity drive? Unraid doesnt seem to be happy about that. I guess i could also just use one disk for non important data and run 3 drives with raidz.

Hi, I have a Asrock J3455 connected to 4x SATA WD Green 1TB SSDs. I moved over from truenas and now am pulling down my zfs array and adding devices to the unraid array. So I added one drive as an array drive, copied all data over and them destroyed the array and added one drive as a parity drive. That all seems to work fine. However now the parity-sync starts at 300mb/s and then slows down to an abysmal 4mb/s over the course of 2hrs. At that rate the 1TB would take over a day to sync. Does anybody have an idea on what to do here? Things I've already tried: - Added a fan to the system (max temp of the parity ssd is now 35-38 degrees. System is at 30 degrees (C) - Disabled C States in the Bios and set the Power Saving to "Sport" - Tried a different ssd from the pool as the write device - Tested disks with diskspeed, mixed results here, the full test wasnt run (some bug) - Tested a usb drive, that seemed to be a lot faster (was originally running a backup to there) Thanks! jnas-diagnostics-20240330-1314.zip