You should be able to just copy using any tool/file manager

Super thanks. I'll describe what i did below (if somebody would want to do the same).

 

TURNO OFF DOCKERS and VMs

to avoid the files being edited during the process.

settings > Docker and

settings > VM manager

 

BACKUP FILES

first i installed "Dynamix File Manager" in the apps-tab under plugins.

Then i could browse folders by clicking the litte link next to disk4 in the main-tab

Then i created a new folder on disk4 named "cache-backup"
Then i clicked to the browse icon next to the cache drive,

selected all folders on the cache drive and clicked copy to disk4 > "cache-backup" 

This took about an hour.

ERASE CACHE

then i click on cache in the main-tab

clicked erase 

accepted the warning

 

SHARE diagnostics: 

shared the diagnostics file (tools-tab > diagnostics > download)

 

RESTORE BACKUP

Went to the backup folder "cache backup" on disk4and, selected all folder,clicked copy. Selected cache drive

 

Here is the result.

tower-diagnostics-20241117-1618.zip

Edited November 17, 20241 yr by stekkes

43 minutes ago, stekkes said:

Here is the result.

Device is correctly formatted now, the pool is using the default raid1, so only 500GB will be usable, but you can now convert to single if you to use the full capacity without redundancy