search for: fsctl_srv_copychunk

...ot clear which server/client configuration I should use. As far as I understand on the server-side, I should have at least Samba 4.1 on a BTRFS filesystem (with vfs objects = btrfs in the share). But on the client side, what can I use ? There is a warning on the page that: "the client's FSCTL_SRV_COPYCHUNK server-side copy request must be Btrfs filesystem aligned" Digging a little more, I found some explanations here: https://lists.samba.org/archive/samba-technical/2013-September/095135.html > with Samba and Btrfs the request latency will be > heavily effected by whether the FSCTL_SRV_CO...

...sible by > 4096. > > The only time you'll get the server copy is if the > last chunk isn't divisible by 4096. It's not a problem. Thank you very much for all the help and explanations. It's much clearer now. So if I understand correctly, as long as the client send the FSCTL_SRV_COPYCHUNK, it should be ok. The FSCTL_SRV_COPYCHUNK instructions seems to be included in SMB2 in smbclient starting from version 4.3. On linux, most current utilities like Nautilus (gvfs) still use SMB1 to connect, so there is no chance to trigger a server-side copy. On Mac, it seems to be using SMB3, so...

...understand on the server-side, I should have at least > > Samba 4.1 on a BTRFS filesystem (with vfs objects = btrfs in the > > share). > > > > But on the client side, what can I use ? > > > > There is a warning on the page that: > > "the client's FSCTL_SRV_COPYCHUNK server-side copy request must be > > Btrfs filesystem aligned" > > > > Digging a little more, I found some explanations here: > > https://lists.samba.org/archive/samba-technical/2013-September/095135.html > > > > > with Samba and Btrfs the request laten...

...electing the reflink code. > > > > > > Are you using SMB2 ? > > > > No I was using SMB1: my mistake. > > Now with SMB2, it works, thanks ! > > > > If I can ask, what is this restrictions with "Btrfs filesystem > > aligned" and "FSCTL_SRV_COPYCHUNK wire request byte offsets and > > lengths align to the Btrfs sector-size" ? > > Is it a restriction on the server or the client ? > > Server. > > > How can I check that I don't have this restriction ? > > Ensure clone range request sizes are integer >...

...gt; > OK, follow though using debug level 10 and see why it isn't > selecting the reflink code. > > Are you using SMB2 ? No I was using SMB1: my mistake. Now with SMB2, it works, thanks ! If I can ask, what is this restrictions with "Btrfs filesystem aligned" and "FSCTL_SRV_COPYCHUNK wire request byte offsets and lengths align to the Btrfs sector-size" ? Is it a restriction on the server or the client ? How can I check that I don't have this restriction ? Thanks for your help !

...on I should use. > > As far as I understand on the server-side, I should have at least Samba > 4.1 on a BTRFS filesystem (with vfs objects = btrfs in the share). > > But on the client side, what can I use ? > > There is a warning on the page that: > "the client's FSCTL_SRV_COPYCHUNK server-side copy request must be > Btrfs filesystem aligned" > > Digging a little more, I found some explanations here: > https://lists.samba.org/archive/samba-technical/2013-September/095135.html > > > with Samba and Btrfs the request latency will be > > heavily e...

...with a heavily modified schema is now possible (ie. Windows 2012 DCs or other Windows DC with exchange installed) and replication didn't fail anymore in such environments. Server-Side Copy Support ======================== Samba 4.1.0 adds support for server-side copy operations via the SMB2 FSCTL_SRV_COPYCHUNK request. Clients making use of server-side copy support, such as Windows Server 2012, should experience considerable performance improvements for file copy operations, as file data need not traverse the network. This feature is enabled by default on the smbd file server. Btrfs Filesystem Integrat...

...with a heavily modified schema is now possible (ie. Windows 2012 DCs or other Windows DC with exchange installed) and replication didn't fail anymore in such environments. Server-Side Copy Support ======================== Samba 4.1.0 adds support for server-side copy operations via the SMB2 FSCTL_SRV_COPYCHUNK request. Clients making use of server-side copy support, such as Windows Server 2012, should experience considerable performance improvements for file copy operations, as file data need not traverse the network. This feature is enabled by default on the smbd file server. Btrfs Filesystem Integrat...

...with a heavily modified schema is now possible (ie. Windows 2012 DCs or other Windows DC with exchange installed) and replication didn't fail anymore in such environments. Server-Side Copy Support ======================== Samba 4.1.0 adds support for server-side copy operations via the SMB2 FSCTL_SRV_COPYCHUNK request. Clients making use of server-side copy support, such as Windows Server 2012, should experience considerable performance improvements for file copy operations, as file data need not traverse the network. This feature is enabled by default on the smbd file server. Btrfs Filesystem Integrat...

...with a heavily modified schema is now possible (ie. Windows 2012 DCs or other Windows DC with exchange installed) and replication didn't fail anymore in such environments. Server-Side Copy Support ======================== Samba 4.1.0 adds support for server-side copy operations via the SMB2 FSCTL_SRV_COPYCHUNK request. Clients making use of server-side copy support, such as Windows Server 2012, should experience considerable performance improvements for file copy operations, as file data need not traverse the network. This feature is enabled by default on the smbd file server. Btrfs Filesystem Integrat...

...with a heavily modified schema is now possible (ie. Windows 2012 DCs or other Windows DC with exchange installed) and replication didn't fail anymore in such environments. Server-Side Copy Support ======================== Samba 4.1.0 adds support for server-side copy operations via the SMB2 FSCTL_SRV_COPYCHUNK request. Clients making use of server-side copy support, such as Windows Server 2012, should experience considerable performance improvements for file copy operations, as file data need not traverse the network. This feature is enabled by default on the smbd file server. Btrfs Filesystem Integrat...

...with a heavily modified schema is now possible (ie. Windows 2012 DCs or other Windows DC with exchange installed) and replication didn't fail anymore in such environments. Server-Side Copy Support ======================== Samba 4.1.0 adds support for server-side copy operations via the SMB2 FSCTL_SRV_COPYCHUNK request. Clients making use of server-side copy support, such as Windows Server 2012, should experience considerable performance improvements for file copy operations, as file data need not traverse the network. This feature is enabled by default on the smbd file server. Btrfs Filesystem Integrat...

...10 and see why it isn't > > selecting the reflink code. > > > > Are you using SMB2 ? > > No I was using SMB1: my mistake. > Now with SMB2, it works, thanks ! > > If I can ask, what is this restrictions with "Btrfs filesystem aligned" > and "FSCTL_SRV_COPYCHUNK wire request byte offsets and lengths align > to the Btrfs sector-size" ? > Is it a restriction on the server or the client ? Server. > How can I check that I don't have this restriction ? Ensure clone range request sizes are integer divisible by 4096. If the btrfs clone range...

...with a heavily modified schema is now possible (ie. Windows 2012 DCs or other Windows DC with exchange installed) and replication didn't fail anymore in such environments. Server-Side Copy Support ======================== Samba 4.1.0 adds support for server-side copy operations via the SMB2 FSCTL_SRV_COPYCHUNK request. Clients making use of server-side copy support, such as Windows Server 2012, should experience considerable performance improvements for file copy operations, as file data need not traverse the network. This feature is enabled by default on the smbd file server. Btrfs Filesystem Integrat...

...with a heavily modified schema is now possible (ie. Windows 2012 DCs or other Windows DC with exchange installed) and replication didn't fail anymore in such environments. Server-Side Copy Support ======================== Samba 4.1.0 adds support for server-side copy operations via the SMB2 FSCTL_SRV_COPYCHUNK request. Clients making use of server-side copy support, such as Windows Server 2012, should experience considerable performance improvements for file copy operations, as file data need not traverse the network. This feature is enabled by default on the smbd file server. Btrfs Filesystem Integrat...

...a heavily modified schema is now possible (ie. Windows 2012 DCs or other Windows DC with exchange installed) and replication didn''t fail anymore in such environments. Server-Side Copy Support ======================== Samba 4.1.0 adds support for server-side copy operations via the SMB2 FSCTL_SRV_COPYCHUNK request. Clients making use of server-side copy support, such as Windows Server 2012, should experience considerable performance improvements for file copy operations, as file data need not traverse the network. This feature is enabled by default on the smbd file server. Btrfs Filesystem Integrat...

...with a heavily modified schema is now possible (ie. Windows 2012 DCs or other Windows DC with exchange installed) and replication didn't fail anymore in such environments. Server-Side Copy Support ======================== Samba 4.1.0 adds support for server-side copy operations via the SMB2 FSCTL_SRV_COPYCHUNK request. Clients making use of server-side copy support, such as Windows Server 2012, should experience considerable performance improvements for file copy operations, as file data need not traverse the network. This feature is enabled by default on the smbd file server. Btrfs Filesystem Integrat...

...with a heavily modified schema is now possible (ie. Windows 2012 DCs or other Windows DC with exchange installed) and replication didn't fail anymore in such environments. Server-Side Copy Support ======================== Samba 4.1.0 adds support for server-side copy operations via the SMB2 FSCTL_SRV_COPYCHUNK request. Clients making use of server-side copy support, such as Windows Server 2012, should experience considerable performance improvements for file copy operations, as file data need not traverse the network. This feature is enabled by default on the smbd file server. Btrfs Filesystem Integrat...