BackupPC-users

Re: [BackupPC-users] Setup two NIC's to improve performance

2010-06-09 14:28:03
Subject: Re: [BackupPC-users] Setup two NIC's to improve performance
From: Bruce <bruce AT sqls DOT net>
To: "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Wed, 09 Jun 2010 13:26:14 -0500
Ed wins.

Ed McDonagh wrote:
> What about the big and little 'm'? 'm'illi/'M'ega... makes quite a lot
> of difference too, even if a millibit/byte isn't a very useful unit!
>
> Ed
>
> On Wed, 2010-06-09 at 17:09 +0100, Tyler J. Wagner wrote:
>   
>> Doh! I missed the big B, and I'm a network engineer. No donut for me!
>>
>> Tyler
>>
>> On Wednesday 09 June 2010 16:47:48 Bruce wrote:
>>     
>>> Oh, umn sorry.
>>>
>>> I should have been more clear.  I was trying to say 100 megabyte (MB)
>>> per second.  Not mbit (mb).
>>>
>>> I've actually seen 109MB/s on a couple of intel nics here.
>>>
>>> Tyler J. Wagner wrote:
>>>       
>>>> On Wednesday 09 June 2010 16:07:32 Bruce wrote:
>>>>         
>>>>> Some notes on this though.  A good professional 1GB nic can push about
>>>>> 100/MBs.  Often you will run into CPU or HD bottlenecks before you get
>>>>> this far unless you've got a pretty decent cpu and  some type of raid hd
>>>>> setup.
>>>>>           
>>>> I have a no-name server with a 3-ware SATA RAID controller and two
>>>> gigabit ethernet interfaces. Between two servers on the same gigabit LAN,
>>>> using default 1500-byte MTU, copying between disks, I can push 200 mbit.
>>>> Just testing UDP with iperf I can easily hit 400 mbit.
>>>>
>>>> Gigabit should sustain 600 mbit. If you're seeing 100 mbit, keep
>>>> investigating.
>>>>
>>>> Regards,
>>>> Tyler
>>>>         
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>>>       
>
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ThinkGeek and WIRED's GeekDad team up for the Ultimate 
GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the 
lucky parental unit.  See the prize list and enter to win: 
http://p.sf.net/sfu/thinkgeek-promo
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