Am 11.04.2011 10:23, schrieb Florian Philipp:
> Am 11.04.2011 13:08, schrieb Federico Alves:
>>
>> On 4/10/11 11:35 PM, "Larry Brower" <[log in to unmask]> wrote:
>>
>> On 04/11/2011 05:59 AM, Federico Alves wrote:
>>>>> I am using rsync to send almost 1 TB of sparse files across the LAN to
>>>>> another identical Linux box. If I fire only 1 command, I get about 22 Mb
>>>>> of speed, but if I fire 6 commands in parallel, from different SSH
>>>>> connections, the speed is divided by 6: very, very slow.
>>>>>
>>>>> My command is
>>>>>  rsync -S --progress sparsefile jephe@server:newsparsefile
>>>>>
>>>>> The LAN is 1GB and both machines are Scientific Linux 6.0.
>>>>> Is there any way to do this that does not have a bottleneck?
>>>>> Federico
>>
>>
>>
>> This could be a limitation of your disks speed in the servers and not
>> rsync itself
>>>
>>
>> The limitation is not my hardware. The servers are both Dell R900
>> with SAS disk arrays. Also, from a Windows virtual machine, inside
>> the same server, I get around 400 MB speed using FTP transfer,
>> windows to windows. There must be a different way to do this from
>> Linux.The files are sparse files, and I need to keep them that way,
>> that's why I use rsync.
> 
> Maybe it helps to rule out SSH as the culprit. Can you try to set up a
> real rsync-server on that machine (package rsync-server)? Take a look at
> `man rsyncd.conf` for an example configuration. Here is a short
> walkthrough on how to setup one:
> http://www.jtanderson.org/linux/centos-5-rsync-server-setup/
> (BTW: Why isn't there an init script and default config file in the
> rsync package?)
> 

Ignore that part about package rsync-server. I forgot to take that out.
Thought there was a package like that.