Re: [BackupPC-users] Backing up many small files
2013-02-06 11:15:47
On Wed, Feb 6, 2013 at 3:56 AM, Sorin Srbu <sorin.srbu AT orgfarm.uu DOT se>
wrote:
>>>
>> ??? 7MB/s (that is 7Mbyte/s) is a usable value for a 100Mb/s (that is 100
>> Mbits/s) connection! 100Mb/s translates to 12MB/s, 10Mb/s would be
>> 1.2MB/s...
>>
>> On a 1G network, you can get similar rates as with local hard disk,
>> that is ~100-120MB/s.
>>
>> So on a 100Mb/s-network, the OP can't get higher transfer-rates then 12MB/s.
>> Its the physical limit. 7MB/s is a good value.
>>
>
> Thanks for clearing that up!
But with rsync over ssh, that's not very strictly related to
real-world results. Except in the case of new files, rsync is only
going to send changes that may take little bandwidth but can trigger a
lot of slow disk activity reconstructing the new copy. And if your
bandwidth is the limiting factor you can add the -C option to ssh for
compression.
--
Les Mikesell
lesmikesell AT gmail DOT com
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