Hellomynameisleo

I've tested documents and images but they remain the same "size on disk" on properties. How do I see if comprression is enabled or the differenence between the uncompressed/compressed size to confirm because byte for byte there isn't a reduction at all or change compared to the original file.

thanks I used "btrfs property set /mnt/disk1/Backup compression zstd" and "btrfs property set /mnt/disk2/Backup compression zstd". I copied over a test file over to the shared named "Backup" but the filesize hasn't changed.

I've tried the code in the unraid terminal but it doesn't seem to work as its in python. Is there a native code that works in the terminal right out of the gate?

I've created a new user share, and my disks are formatted to BTRFS. How do I make it so UNRAID does ZSTD compression for all the files in the usershares and does it for all new ones including all files in the subdirectories as well automatically? I'm unable to see an option for it in the GUI

It seems similar but also can do cloud based storage syncing. rsync and rclone can have checksum checks option so it checks the hash of the source and destination when syncing

Will rclone be a good solution to this and when a corrupted file that stills go through? It has a --backup-dir option when syncing where any file that is going to to be ovewritten or deleted will simply get to put into a seperate backup directory instead. Seems like a good solution for all this

thanks for the test, what if you was to copy a file from the windows PC side instead of operating from unraid instead such as copying and pasting a file from the NAS user/disk share to the windows pc? Would this come out the same result?

thanks but is there a work around this? The only thing I can think if is doing a full system scrub on BTRFS UNRAID before transfering but I've got lots of 50 TB of data so this wouldn't be ideal. Also does this issue also effect ZFS or BTRFS not on UNRAID when using SMB?

can this be tested also with BTRFS please?

Thats the problem, I want it to be robust and something I can comfortably rely on. What use if it overides the backup with the corrupted file and notifies me, I can't do anything then. Thanks for the information and help, hope this will change to be 100% reliable in the future.

That doesn't sound good, is there a solution around this as I don't want my data to be sometimes corrupted. I know there's a data integrity plugin but have heard mostly bad things about it being very unstable/unreliable.

Thanks, will it also give an error and abord automatically if detected so it doesn't overide the good copy with the corrupted file?

If I was to use BTRFS on UNRAID and mount the usershare to my Windows PC as a drive letter, when using the Windows PC to copy any file/folder from the UNRAID mounted usershare to the Windows PC using a simple copy and paste or robocopy mirror command does UNRAID use BTRFS checksum verification to read the source file before copying over?