MartynK

I am currently copying 10's of TB around which is taking days. Whats adding to the time is that I often see the speed of transfer has dropped so I go look at the running processes to see multiple rsync's running. Normally I see 3 copies of rsync running (as a group) when things are OK, but when it goes wrong, I look at the processes and I can see multiple groups of rsync. If I cancel the running copy, it normally kills off one of the rsync groups, but I am left with any other groups which I have to kill manually. I am sure this cannot be normal and I am not sure what is causing the problem. How can I find out ?

Yes, the are USB and the serial numbers are being passed, it looks like some times they dont come through correctly, so the reboot clears things up and the are passed OK.

Odd because I have seen a number of occasions where there correct number of disks have been passed over, just they have just not dropped in to the correct allocation.

This must be an issue with the order that the USB disks are found at the hardware level. I find that if I reboot, normally once, but sometimes twice, everything just works perfectly, all the disks are found in the right order etc. its a shame this cannot be fixed somehow as using USB enclosures for low throughput needs are a cheap solution with Unraid.

I have two servers sitting on the same network both configured exactly the same way. If I go to APPS on the first on it loads and I also get the message " Backup Server Active. Some icons may not appear, and plugin installations may be affected". If I go to APPS on the second one, it gives an error "Download of appfeed failed." also "Last JSON error Recorded: Syntax error" Its also going on about DNS servers, but I know they are all working as both servers are using the same, if I go to a terminal on the second server I can access and resolve DNS fine. What am I missing ?

I found another major issue with this. When nothing was showing as the progress window had vanished, I could see my disks were still getting thrashed. When I looked at the process monitor, it had about 9 copies of (I think it was rsync) running or in a suspended state. I could not shutdown the array as it said it was blocked, in the end I had to go kill the processes one by one to allow me to reset the array and get it back up to speed.

I dont have the space for a real PC and external disks, so I only have this option. Its odd, because sometimes, not even the USB boot drive is working, something is odd. I have a new mini PC on order, hopefully it may help.

I have a mount to a SMB share and am copying files. The only problem is the window showing the status of the copy has vanished, its not now visible and the link at the bottom of the page has gone also. I can see that files are still copying if I look at disk activity or go look at the actual share on the array. How can I get the status window back, without it if I needed to cancel the copy I dont see how ?

I have a mount to a SMB share and am copying files. The only problem is the window showing the status of the copy has vanished, its not now visible and the link at the bottom of the page has gone also. I can see that files are still copying if I look at disk activity or go look at the actual share on the array. How can I get the status window back, without it if I needed to cancel the copy I dont see how ?

I have a really odd problem on a new server I am building. A Mini PC with two 5 bay USB disk enclosures which I am slowly adding disk to. When I reboot the server, it randomly drops disks from the array, if I power everything off, wait a few minutes and restart, sometimes it takes one or two cycles before the disks become visible again and I can place them back into their correct array allocation. I have also seen where one disks ID totally changed to a random name, yet again a reboot and the disk was "found" again with the correct ID. Not sure how to solve this, any help ?

Maybe I should turn this on its head. If I add 4 new drives now to the array without preclearing them first, I believe it will mean the existing parity disk will become invalid. So once the new disks are added, I could then add the second parity drive and let Unraid rebuild both at the same time. Either way I need to rebuild parity for the second disk, just will it do both parity disks at the same time ?

OK, but once again, what is the quicker option, preclear the disks (does Unraid do it a disk at a time) or just add them and let it rebuild Parity ? Adding the second Parity disk is realy "belts and braces"

Hi, Thanks for the reply, but I am still not 100% sure what I am best to do. So I am going to add 5 new 16tb drives, one will be the second Parity drive. Do I just add them and let Unraid deal with them ? Thanks

I am currently building up a new Unraid server, its currently got 4x16tb and 1x16tb parity drives. Once I have copied data from my old NAS on to this initial build, I will have a further 5x16tb drives to add to the array. What is going to be best practice and also fastest, to just add the disks and let the system rebuild parity or preclear each disk first ? I am also thinking of using one of the additional disks as a second parity disks, so would the rebuild be quickest ?

Hence me trying to keep this very simple to workout the best solution 😨

You are basically confirming just about everything I though in the first place to be honest. I dont have the luxury of being able to have an off-site backup like yours, so looking for a solution that does not use heaps of space, I live in a small flat. All of my systems are on UPS currently, our electric supply is good, but as you say, you never know. Looking at the likes of Backblaze, backups would work, but when you need to restore, you need to work out 500gb chunks which is going to be horrible when you don't know what is stored on what disks in a big array. Thanks anyways.

At what level do I not need a backup, there must be some level of setup I dont ? To have to double up on the number of disks I have its madness, let alone the manual organisation needed to split the array into manageable chunks which be backed up to separate disks. Currently I have 4 x 4 bay QNap NAS devices which each run Raid 5, I was hoping that I could cut that back, but are we saying Unraid is not as secure as Raid 5 ? (Yes I know multiple failures etc all at the same time would be a wipeout), I am trying to get to a happy medium where I have a reliable enough system that I dont need to manage backups on a monthly basis.

I have looked all around to this one simple question and cannot find a definitive answer on the subject. Do I need to backup my Array ? I have 8 x 16tb in a QNap USB enclosure with 1 disk running as the Partity drive.

I know this has been asked before, but I cannot find a definitive answer to this without a trail 500 posts long. If I put appdata on the Cache, then as in my case its an SSD, it if dies, I lose all my app settings. If I set the secondary device to be the array, then it gives me warnings that files and directories are on the chase. I want to run it fast but need to bac it up, what setting should I be using, I just dont get it ?

Thanks very much for the help, I would never have known that one. It certainly fixed the issue and the SSD is now showing.

Sorry, like I said I am a newbie to all of this so finding my way around slowly Hopefully attached files are what your looking for. tower01-diagnostics-20240122-1119.zip

I have a Dell 5080 with a Crutial M.2 2280 1TB drive installed. If I go in to the BIOS, its showing fine, the drive is enabled and everything looks good. Yet when Unraid boots, it does not recognize the drive and does not show it as an available disk I dont have a clue where to look as this is my first setup, any help would be great.