copy offload for SMB?

Richard Sharpe realrichardsharpe at
Fri Feb 22 07:45:36 MST 2013

On Fri, Feb 22, 2013 at 2:30 AM, David Disseldorp <ddiss at> wrote:
> On Thu, 21 Feb 2013 21:49:35 -0800
> Richard Sharpe <realrichardsharpe at> wrote:
>> Now to check if W2K08 sends such an FSCTL to see if it can get a resume key.
> 2k8 doesn't use it for copies initiated via Explorer, 2k12 does though.
> See source3/smbd/smb2_ioctl_network_fs.c for the Samba implementation.

Thanks. Do you know if it is exposed on W2K08 via CopyFileEx or
something like that?

Richard Sharpe

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