2009/1/15 Rudy Gevaert <rudy.geva...@ugent.be> > Andrew Morgan wrote: > > > For those of you running large installations, how do you back them up? > > We have 7 backends: > 400G 320G 81G 80% /mail/mail1 > 400G 273G 128G 69% /mail/mail2 > 450G 390G 61G 87% /mail/mail3 > 400G 322G 79G 81% /mail/mail4 > 400G 270G 131G 68% /mail/mail5 > 450G 397G 54G 89% /mail/mail6 > 50G 4.8G 46G 10% /mail/mail7 > > > For mail1-6 incremental backup time takes between 2h and 7h, we suspect > a storage (misconfiguration) issue.
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 Dom > > > Fulls take a lot longer, but I can't give you any time estimates now. > > For the moment we don't backup the replica's. Nor use them. But we > could do it. > > We are 'planning' a storage migration too the coming months. > > Rudy > -- > -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > Rudy Gevaert rudy.geva...@ugent.be tel:+32 9 264 4734 > Directie ICT, afd. Infrastructuur ICT Department, Infrastructure office > Groep Systemen Systems group > Universiteit Gent Ghent University > Krijgslaan 281, gebouw S9, 9000 Gent, Belgie www.UGent.be > -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > ---- > Cyrus Home Page: http://cyrusimap.web.cmu.edu/ > Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki > List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html > -- Dominique LALOT Ingénieur Systèmes et Réseaux http://annuaire.univmed.fr/showuser?uid=lalot
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