Hi, I tried different encryptions like arc four, but always with the same result. BTW: googling shows some similar questions and they are stuck on set same speed +-. But non of that solutions helped me. /Götz > Am 11.08.2015 um 12:14 schrieb Eero Volotinen <eero.volotinen at iki.fi>: > > Usually problem in encryption. > > try cipher arcfour or apply hpn patches to ssh. (http://www.psc.edu/index.php/hpn-ssh <http://www.psc.edu/index.php/hpn-ssh>) > > -- > Eero > > 2015-08-11 12:37 GMT+03:00 Götz Reinicke - IT Koordinator <goetz.reinicke at filmakademie.de <mailto:goetz.reinicke at filmakademie.de>>: > Hi, > > i have two servers, connected to to the lan by 10Gb with 10Gb and DAS > hardware raid. > > Each system con read and write locally or to the 10G iscsi by more than > 200 MB/s. > > Now I have to transfer backups form A to B and doing this with rsync > always stuck at +- 48-50MB/s no matter which options, compressions, > encryption etc I use. Even the plain default rsync is at that 50 Mb limit. > > coyp by scp goes up to 200 MB/s. > > Copy from and to my workstation with scp from or to both servers is at > 1Gb limit (so +- 100 MB/s) > > > Why is rsync stuck at +- 50 MB/s ? Any suggestions hints ... > > Thanks and regards . Götz