robinkoehler

Hi Jorge, thank you for the reply. For posterity: my H77 board blew up shortly after posting this, and the copying error seems to have been caused by a mechanical failure on the parity drive. This failure may or may not have been related to the defective board. Replacing the parity drive and re-building it overnight has resolved all errors (and I was able to get my files). Take care and best wishes, Robin

Hi all, I've got a weird situation where files from the NAS refuse to copy back to my PC. It's a folder with 8,000 .jpg files ranging from 300kb to 2mb in size. I can open the files in windows explorer, albeit with a wait time of about 5 seconds before I can see the photo. The file copy dialogue is stuck on "Calculating...", the NAS seems to have a constant CPU utilisation of about 30%. No read/write activity on the disks. I can copy other files from the NAS and write to the NAS at full network speed (1Gbps), but this operation doesn't want to play nice. Any idea what might be causing this, and more importantly how I can release the files from the tight death grip of the NAS? Thank you kindly in advance for your replies and for your help! Best wishes, Robin

I'm having the same question. I understand this line might have to be included in a file, but I need some guidance how to incorporate it in the right place? Thank you in advance!

Hi Jorge, you have rescued me yet again! After the parity was completely synched, the array now happily writes at up to 150mb/s, which is higher than my network bandwidth and allows me to transfer files at the maximum speed my setup allows. Your help and knowledge is highly appreciated. Take care and best wishes, Robin

Thank you Jorge, I'll let it finish overnight and report back (5hrs remaining)

Thank you. The disks are still completely empty and I can write on the array in full speed of my network connection if parity is disabled. Parity sync is running at over 185 mb/s read for the data drives, and write for the parity drive.

Thank you again! I have created a diagnostics file just now during a file copy operation to the array. Parity sync was disabled during the test. Please see attached: diagnostics-20221120-2156.zip

Yes, if I run sdparm -g WCE /dev/sdd on each drive, they all return "1", indicating it's enabled on every drive Never more than 47% on any core during copy operation (Ryzen 2700x). I have attached it to this post diagnostics-20221120-2151.zip

Thank you for the reply. I am running parity sync now at 196mb/s

Hi all, I've spent the weekend trying to troubleshoot this, sorry if I'm missing something obvious. My array has parity enabled, and writing to the array is capped to around 60mb/s. I have gigabit ethernet, the connection between PC and unraid is confirmed to work (and I can write to RAM at full 115mb/s until RAM is filled and it drops to 60mb/s). I am not using a cache pool. If I disable parity, the array writes at full 115mb/s as well I have reconstruction writes enabled for the share, and tried user share vs disk share as well I have tried high water, fill up and most free with the same result I have tried the TipsAndTweaks dirty ratio % set to 1% with the same result I have confirmed that write caching is enabled on all drives (they are SATA, but I still double checked) All disks are spinning. Parity sync can run at full disk speed (185+mb/s for all disks read, and 185+mb/s write on the parity disk) All disks are identical (4TB Seagate Ironwolf). I have 5 data disks and 1 parity disk in the array I have tried different test file sizes which are all larger than system RAM I have tried different computers on the network Am I not supposed to get almost full write speed of the drives (or at least 1GB ethernet saturation in my case) with turbo writes enabled? Again, sorry if I don't understand this correctly. I have searched the forum and googled everything I could think of in the last two days, and am at the end of my knowledge and skill level here. Thank you kindly in advance for your help and guidance! Robin

Dear Jorge, Thank you so much for your knowledgeable reply! I made a new stick with 6.11.1 and it's formatting without issues right now. I really appreciate your help, I've been dealing with this for days and was really stuck. Take care and best wishes! Robin

Hi everyone, I have hit a wall with a new server (my second Unraid installation). This was supposed to be a relatively simple 6-drive setup. I can assign all my drives, start the array, but the disks refuse to format. It keeps saying Unmountable: Unsupported partition layout even after the formatting process. I have spent the last day troubleshooting and googling, taken out a drive and re-formatted it in Windows to test. I have installed Unassigned Devices and enabled destructive mode, tried Preclear. Not getting anywhere with it, and all my Google searches just lead to threads where the issues were resolved with one of the previously mentioned methods. Is this an issue with the board? Asus Prime x370 Pro. All disks are recognised, SATA mode is AHCI and not raid. Disks were working flawlessly before I put them in the array. I would appreciate any pointers and what else I could try! There is no data on the disks so it's not an issue to re-do everything. I have deleted the configuration several times, but am yet to re-flash the USB (because I didn't think that would help). Thanks everybody kindly in advance! Robin

Hi trurl, Thank you for the reply! Ok dang, that's unfortunate, but it makes sense. I would like to use all 8 ports for storage, and currently do not have the budget for larger capacity drives. You've answered everything I needed to know at this point though, much appreciated! Best wishes, Robin

Hi all! I've just installed the trial on an 8-drive system. The write speed to the array is around 100MB/s for the first 10 seconds of a transfer, then it drops to 45-50-MB/s. Questions: 1) I assume this is when the parity overhead kicks in? The parity drive is the same make, model and capacity as the array drives. Do I understand this correctly? 2) Would this improve if I replaced the parity HDD with a same capacity SSD? I do not have enough SATA connectors for a separate cache drive I'm afraid 3) Can a cache drive be connected via USB3 and be fully recognised and utilised by Unraid? I would have to swap the motherboard, hence solution 2) would be easier for me Thank you everyone kindly in advance for replies and guidance! Best wishes, Robin