Copy/move between shares is sloooooooooooow...

rotordave wrote:
How can it be acceptable that ordinary move operations are not possible on this device? What is being done to address this? Aside from forcing users to use a single share? The fact that BTRFS has this limitation is irrelevant - I need to be able to move large files without coping them...!

You apparently missed a post further down:

Skywalker wrote:
...future firmware releases will support this sort of operation via SMB2's FSCTL_SRV_COPYCHUNK command, which is for server-side copies. But I don't know which SMB clients use that command, other than Windows Server 2012.

It seems to me that the web ui could also use the --reflink option.

The bottom line is that it works this way for now. Netgear might be able to put in limited support for --reflink in various spots. But this is a tradeoff - the snapshots are also a feature that many users want. The ability to turn snapshots on/off on a share-by-share basis is also needed, and supporting that means that moves between shares (subvolumes) are treated as copy/delete by the file system. Some users will prefer the snapshot control, others don't care about snapshots, and would rather have the direct move.

I imagine there could also be a setting when you create the share that doesn't set it up as a subvolume - permanently disabling snapshots. There'd be no way to undo that without deleting the share.

You could attempt to do this manually in ssh. Rename "Downloads" temporarily in SSH, and create a Downloads folder manually with the normal permissions. There might be some side effects, but if it works you'd end up with a downloads folder that is not a subvolume.