[Samba] Copying between physical drives within samba mount - veryslow.

Mitch (WebCob) mitch at webcob.com
Sat Dec 11 23:55:31 GMT 2004

> -----Original Message-----
> From: samba-bounces+mitch=webcob.com at lists.samba.org [mailto:samba-
> bounces+mitch=webcob.com at lists.samba.org] On Behalf Of Panos Koutsoyannis
> Sent: December 11, 2004 1:11 PM
> To: samba at lists.samba.org
> Subject: [Samba] Copying between physical drives within samba mount -
> veryslow.
> I have a situation with a linux box that has several drives mounted under
> /master
> say /master/drive1 and /master/drive2 ..etc.
> I mount /master on my windows machine or os x machine using samba.
> when I move files from /master/drive1 to /master/drive2 the copy process
> is very slow.
> it seems samba actually sends the file over he network from the linux
> machine to the pc on which it is mounted and back to the linux machine.
> This only happens when there are different drives involved.  however if i
> move files within the same drive it is fast as expected.
[Mitch says:] This is similar to Linux itself - if you were moving within an
NFS mount point, you would move... which I believe is commonly implemented
as a hardlink to the second location OR a copy if on a different physical
location, then an unlink from the old location...

Windows / SMB has the same limitation in the protocol - There is no "rpc
move" used (or even existing I think?) so it does what it has to do within
the protocol - you will of course see much faster throughput by doing these
major moves locally on the server box through a shell if that is an option
for you.


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