On 23.07.2017 13:08, vychytraly . wrote: > Hello friends, > > I have a Gigabit network with few Windows and Centos 7 machines and I > noticed that when copying files via Samba from: > > Windows to Windows I can copy files with speed of +- 120 MBps (I think this > is the max speed gigabit network can provide) which Windows and which CentOS (6, 7) you are talking about? > But when copying files from: > > Centos to Centos I get only speeds of about 40 MBps how do you copy from CentOS to CentOS - SMB, too? > Windows to Centos 40 MBps > > Centos to Windows 40 MBps this seems to be, that SAMBA doesn't support SMB v2 or v3 can you try the following test, to see if it is not a problem deeper ... can you get WinSCP ... https://winscp.net/eng/download.php (the Portable executables suits) and connect with this from Windows to CentOS and try a file transfer here if it has nearly the same speed as with SAMBA, the problem is deeper if it is quite faster then the problem is SAMBA Walter