Hi, Can I create a wiki page of rados4eucalyptus too? On Mon, Nov 15, 2010 at 7:17 PM, Takuya ASADA <syuu@xxxxxxxxxxxx> wrote: > Hi, > >> The general rule is to split objects up into smaller pieces of 4MB, >> that's what the filesystem Ceph and RBD do. >> >> You could refer to the RBD code, but i'm not fully into RBD, Yehuda >> Sadeh might be able to tell you more. >> >> The problem is, that when you put everything in one RADOS object, it >> might fill up a single OSD. >> >> For example, you have ten OSD's, all with a 500GB disk, this would give >> you 5TB of storage. But when you create a image of 1TB (which is mapped >> into a single RADOS object), this object would grow over 500GB and fill >> up that OSD. >> >> When splitting it into smaller object, these can be striped over the >> OSD's, giving you more space, but also more performance. > > Okay, I'll think about it. > >>> > Yes, the radosgw from Ceph is proof-of-concept, what RADOS/Ceph is >>> > capable of. Do you have your Walrus integration online somewhere? >>> >>> Well, currently my testing environment is on the internal network. >>> If you want to test it I can setup. >> >> Oh no, I meant the code to implement it into Walrus, is that available >> somewhere? > > Oops, sorry I misunderstood. > > I implemented it for Eucalyptus-2.0.0, wrote a little install document: > https://code.launchpad.net/~syuu/eucalyptus/rados4eucalyptus-2.0.0 > http://r4eucalyptus.wikia.com/wiki/RADOS4Eucalyptus_Wiki > > And now I'm trying to merge it to -devel tree of Eucalyptus, just sent > the diff at last Friday. > It's not clear that will be merged or not until I haven't received > reply, unfortunately. > > syuu > -- 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
