On Sun, 20 Jan 2013, Jeff Mitchell wrote: > Wido den Hollander wrote: > > No, not really. 1Gbit should be more then enough for your monitors. 3 > > monitors should also be good. No need to go for 5 or 7. > > I have 5 monitors, across 16 different OSD-hosting machines...is that going to > *harm* anything? The updates will be marginally more expensive, but I don't think it will cause any problems--not until you have 10 or more mons, I'd say. The only thing to watch out for is the ceph-mon interfering with the ceph-osds. If you have an old kernel without syncfs(2) (<2.6.39 or thereabouts), or if you are sharing the mon disk with an osd, there can be a negative interaction. sage > (I have had issues in my cluster when doing upgrades where my monitor count > fell to 3, so it felt like having the extra was nice, at that point.) 5 will give you protection from 2 ceph-mon failues, which is nice. sage -- 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
