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<p class=MsoNormal><span style='color:#1F497D'>Hi Lee<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>There seem to be many
people on the list who are eager to show off that they have “multiple
mirrors” or have “multiple-gigabit” connections and other
superlatives. Nevertheless they do contribute and deserve merit for the
donation of something what at the end of the day rather turns out to be based
on a 99$ unlimited “shared” bandwith rented server offering. And
those are normally the same ones who ask in their second post to the list to be
added to the ACL to mirror DVDs directly from the master servers as if binary
data coming from one of the existing ones who made it in time to that ACL had
less value. <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>What really counts
for the project is a meshed content delivery network with fast connections and
I personally find as much as possible peered local traffic instead of commercial
transit traffic, however the peering situation is not a technical but only a
commercial inconvenience. The “yum-fastesmirror” plugin now
shipping as default has made the situation more sane because local mirrors are now
preferred while before, data traffic was carried around the world by the
questionable logic the CentOS team matches server and host IP through DNS.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>What is strongly disliked
are mirrors shaping the total bandwith on the port to a ridiculous amount of
say 2-5 Mbit. This results in slow performance for the leechers from that server
since the mirror accepts all request but delivers equally slow to all of them.
Unfortunately yum only picks the next mirror on failure but doesn’t
failover in case of slow performance and cannot suck from multiple sources as
bittorrent can. It is better not to have a mirror than having an extremely slow
one. If you are not a carrier and you don’t have to manage bandwith but
purchase data volumes from someone who does, it’s perfectly acceptable to
allow downloads at wirespeed “as long as offer lasts” and completely
stop the mirror when your volume is reached since other mirrors will take over
the job thanks to the failover mechanism in yum. It’s not a website where
people look at and where your reputation suffers if it’s down. Don’t
be shy about denying download requests at will, smarty yum, sitting on millions
of machines to get fresh content for its host will pick the next mirror without
complaint. <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>To make it short, if
you want to contribute and you are serious about it, budget for a certain
throughput not less than 10 Mbit and not more than some 30 Mbit and be creative
by having Apache denying requests if the bandwith suddenly outreaches your
budget.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>My MRTGs are not
public as of yet but realistic volumes for CentOS ONLY can be seen here:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><a
href="http://mirror.silyus.net/">http://mirror.silyus.net/</a> (German mirror, with
DVD iso)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><a
href="http://swissmirror.silyus.net/">http://swissmirror.silyus.net/</a> (Swiss
mirror, without DVD iso)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Expect volumes to
double or triple for a couple days when a new release (5.1->5.2) comes out.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Regards, Florian<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span lang=DE style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Von:</span></b><span
lang=DE style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
centos-mirror-bounces@centos.org [mailto:centos-mirror-bounces@centos.org] <b>Im
Auftrag von </b>Lee Clements<br>
<b>Gesendet:</b> Dienstag, 7. Oktober 2008 20:14<br>
<b>An:</b> centos-mirror@centos.org<br>
<b>Betreff:</b> [CentOS-mirror] Average Monthly Transfer used?<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span lang=EN-US>Hey Everyone,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>I’m a newbie to the list, not sure if
this topic has been covered before but was about to establish a CentOS mirror
to support what has helped me out tremendously in the last few months.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>On Average, how much does a standard mirror
pull per month in transfer?<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Any help would be appreciated!<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Thanks.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Lee
Clements<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Network
Architect<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>ServerGurus<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Direct:
312.376.8872<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Main:
312.376.8870<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Fax:
312.205.0153<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><a
href="mailto:lee@servergurus.com">lee@servergurus.com</a><o:p></o:p></span></p>
<p class=MsoNormal><u><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:blue'><a href="http://www.servergurus.com/">www.ServerGurus.com</a></span></u><u><span
lang=EN-US style='color:blue'><o:p></o:p></span></u></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><img
border=0 width=135 height=68 id="Picture_x0020_1"
src="cid:image001.jpg@01C92950.DE84FDF0" alt=sgsiglogo><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><b><span lang=EN-US style='font-size:8.0pt;font-family:"Tahoma","sans-serif"'>DISCLAIMER:</span></b><span
lang=EN-US> </span><span lang=EN-US style='font-size:8.0pt;font-family:"Tahoma","sans-serif"'>This
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<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
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