trurl

In many ways, Unraid is effectively a "clean install" each time it boots. The flash drive contains the archives of the OS, and these are only changed when you change Unraid versions. At each boot, these archives are unpacked into RAM and the OS runs completely in RAM. Think of it as firmware but easier to work with. Settings you have made in the webUI get saved to flash so they can be reapplied after boot, and plugins are loaded. So there isn't much different with a new install except plugins and dockers would have to be setup again. If you suspect a problem with any of those you can just remove them.

Nothing obvious in Diagnostics and maybe wouldn't tell us anything at the file level anyway. Is this a new problem? Many applications will have a setting somewhere which controls permissions of files it creates. For example, transmission has umask in settings.json in its appdata. We really need to take a look at a specific file or folder that is exhibiting the problem, so next time it happens post again to this thread before fixing it.

The numbers you gave don't seem very extreme. Just updating those on the display, and other things besides the webUI will be using some. Do you have any VMs?

Do you have docker applications downloading?

Is this causing any actual problems using your server?

On mobile now so can't look at Diagnostics yet. Is this just some files? How are these files created?

On mobile now so can't look at Diagnostics yet. Are you having an actual problem?

Diagnostics?

You can get to the command line in Unraid by clicking the >_ (Terminal) button at upper right

Go to Tools - Diagnostics and attach the complete Diagnostics ZIP file to your NEXT post in this thread.

Go to Tools - Diagnostics and attach the complete Diagnostics ZIP file to your NEXT post in this thread.

Looks like it should be able to be mounted with the Unassigned Devices plugin, which supports NTFS filesystem.

Unraid is an Operating System, so it needs its own computer to run on. Typically that will be a computer that can have disks installed in it. Some people have used external enclosures as a way to add space for drives to their computer that is running Unraid, but this approach can have some complications of its own.

It is Minimum Free for cache. I think this is in Global Share Settings for versions before 6.9 beta25 and multiple cache pools but is on the settings for each pool since 6.9 beta25

Single would give maximum capacity, but according to FAQ raid0 should work as you say. Maybe you have something wrong with the configuration. Go to Tools - Diagnostics and attach the complete Diagnostics ZIP file to your NEXT post in this thread. Maybe @JorgeB will know what is wrong.

There are different settings in Notifications for different kinds of events. I would think the array status notification would tell you about that, and Fix Common Problems probably checks that as well, but you have to configure it to send Notifications. I haven't had unmountable so I don't know for sure. Does Fix Common Problems have anything to say about your unmountable disk?

New Diagnostics would answer more questions than screenshots

No need to guess. The default is in Settings - Disk Settings

You should convert it to "single"

Checking would just slow it down and it assumes a new disk was used so no point checking.

yes

Do not use option 2 (new config) mentioned in that post from several years ago. That was incorrect.

Wait a minute. Why didn't you mention you had a disabled disk? So, in addition to unmountable disk6 you have disabled disk10 you also didn't notice. Do you know how to fix that?

Do you have Notifications setup to alert you immediately by email or other agent as soon as a problem is detected? Looks like it was unmountable when you booted up a few days ago. https://wiki.unraid.net/Check_Disk_Filesystems#Checking_and_fixing_drives_in_the_webGui

replace