<br><br><div class="gmail_quote">2009/1/15 Rudy Gevaert <span dir="ltr"><<a href="mailto:Rudy.Gevaert@ugent.be">Rudy.Gevaert@ugent.be</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="Ih2E3d">Andrew Morgan wrote:<br>
<br>
> For those of you running large installations, how do you back them up?<br>
<br>
</div>We have 7 backends:<br>
400G 320G 81G 80% /mail/mail1<br>
400G 273G 128G 69% /mail/mail2<br>
450G 390G 61G 87% /mail/mail3<br>
400G 322G 79G 81% /mail/mail4<br>
400G 270G 131G 68% /mail/mail5<br>
450G 397G 54G 89% /mail/mail6<br>
50G 4.8G 46G 10% /mail/mail7<br>
<br>
<br>
For mail1-6 incremental backup time takes between 2h and 7h, we suspect<br>
a storage (misconfiguration) issue.</blockquote><div><br>You can have a look at file fragmentation. We noticed severe degradation on ext3fs. More than 60% of the spool was fragmented. Try a filefrag on your data. To correct it, you have to copy to a fresh new spool<br>
<br>Dom<br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br>
<br>
Fulls take a lot longer, but I can't give you any time estimates now.<br>
<br>
For the moment we don't backup the replica's. Nor use them. But we<br>
could do it.<br>
<br>
We are 'planning' a storage migration too the coming months.<br>
<br>
Rudy<br>
<font color="#888888">--<br>
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Rudy Gevaert Rudy.Gevaert@UGent.be tel:+32 9 264 4734<br>
Directie ICT, afd. Infrastructuur ICT Department, Infrastructure office<br>
Groep Systemen Systems group<br>
Universiteit Gent Ghent University<br>
Krijgslaan 281, gebouw S9, 9000 Gent, Belgie <a href="http://www.UGent.be" target="_blank">www.UGent.be</a><br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>Dominique LALOT<br>Ingénieur Systèmes et Réseaux<br><a href="http://annuaire.univmed.fr/showuser?uid=lalot">http://annuaire.univmed.fr/showuser?uid=lalot</a><br>