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Forum Discussion
Copy/move between shares is sloooooooooooow...
I have SSH'd into my 316 and am doing cp and mv's... trying to move a bunch of data from one share to another (/data/share1 to /data/share2). It's slow. Like, really slow (maybe 90 seconds per GB)...
StephenB wrote:
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.
The list of clients capable of issuing SMB2 FSCTL_SRV_COPYCHUNK server-side copy requests is documented on the upstream Samba wiki:
https://wiki.samba.org/index.php/Server-Side_Copy#Client_Support
The request cannot currently be used to offload copies between shares, but nevertheless offers significant performance improvements for intra-share copies.
I recommend that Netgear consider enabling Samba's Btrfs VFS module to expose the Btrfs specific server-side copy enhancements. The module will also offer transparent file compression support in Samba 4.2.
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