Usually problem in encryption.
try cipher arcfour or apply hpn patches to ssh. (
http://www.psc.edu/index.php/hpn-ssh)
--
Eero
2015-08-11 12:37 GMT+03:00 Götz Reinicke - IT Koordinator <
goetz.reinicke@xxxxxxxxxxxxxxx>:
> 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
>
> --
> Götz Reinicke
> IT-Koordinator
>
> Tel. +49 7141 969 82420
> E-Mail goetz.reinicke@xxxxxxxxxxxxxxx
>
> Filmakademie Baden-Württemberg GmbH
> Akademiehof 10
> 71638 Ludwigsburg
> www.filmakademie.de
>
> Eintragung Amtsgericht Stuttgart HRB 205016
>
> Vorsitzender des Aufsichtsrats: Jürgen Walter MdL
> Staatssekretär im Ministerium für Wissenschaft,
> Forschung und Kunst Baden-Württemberg
>
> Geschäftsführer: Prof. Thomas Schadt
>
>
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