Hello all, Sage informed me of the place where the default size is set a while back. In src/config.cc, the struct g_default_file_layout has a few default size parameters. He advised me that fl_stripe_unit and fl_object_size should be the same. He also told me there's a way to set those on individual files, though that's potentially a pain and could be easier by just setting the default at compile time. There's also a feature request in on alternate methods of setting these. I'm sure the Ceph team would welcome input on this. http://tracker.newdream.net/issues/185 --Alex On Jun 28, 2010, at 08:53 , Thomas Mueller wrote: > Am Mon, 28 Jun 2010 16:27:54 +0200 schrieb Christian Baun: > >> Hi, >> >> What is the chunk size of Ceph? >> I couldn't find this information. >> >> Best Regards >> Christian > > IMHO 4mb > > found in first link if I google "ceph chunk size": > http://lmgtfy.com/?q=ceph+chunk+size > > (http://www.usenix.org/events/fast09/wips_posters/molina_wip.pdf) > > :) > > - Thomas > > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html