Sorry I didn't get to this very quickly -- in future if you keep your questions on the list, rather than to a single person, you will get faster responses.
2011/1/14 yueluck <[email protected]>: > because ceph is not stable now, my xen-disk store on ceph. > so i can not use ceph in my product!!! > you do not have much experence here? you are developper,i think? Yes, I am a developer on Ceph. I have limited experience with other storage systems, though, especially those targeted at Xen node storage. Beyond that, there isn't a single "best" solution to this kind of problem. It depends a great deal on your individual needs, and I don't know what they are except that you want to store images. So, I can recommend that you *look at* RBD, which is a part of Ceph but considerably less complicated (and more stable) than the Ceph POSIX-compliant filesystem, and I can recommend that you *look at* Sheepdog, which is designed precisely and only for storing VM images (although I think it's focused on KVM). Determining which of these (or other alternatives that I'm unaware of) is best for you is something you have to do on your own. It will require a lot of work no matter what solution you pick -- if it was an easy problem to solve, somebody would have done so already. -Greg > i am read source code depend on logs, know outline, but not details. > do you read code ? > > ----------------------------------- > At 2011-01-15 01:18:56，"Gregory Farnum" <[email protected]> wrote: > >>I don't have much experience here, but if Ceph's own RBD doesn't >>satisfy your needs I guess I'd look at Sheepdog. >> >>2011/1/13 yueluck <[email protected]>: >>> can you Recommend me other dfs,like ceph. you know or have experence on it. >>> i will store xen-disk on it. it should stable,multi nodes,good Throughput >>> >>> >>> >>> thanks >>> ------------------------------------------------------ >>> >>> At 2011-01-10 02:05:52，"Gregory Farnum" <[email protected]> wrote: >>> >>>>Moving this to the list where it belongs. >>>> >>>>2011/1/9 yueluck <[email protected]>: >>>>> 1.ceph-client-standalone.git ,ceph-client.git >>>>> what is the different of the client.git???i know ceph-client-standalone.git >>>>> is for ceph.ko, >>>>> what ceph-client.git do? >>>>ceph-client.git is the branch we do all our in-kernel development on. >>>>ceph-client-standalone is the fs/ceph tree of ceph-client with >>>>additional #ifdefs for backporting. If possible you should be using >>>>ceph-client as it's more tested and up-to-date. >>>> >>>>> 2. what is different of scsi-osd,rados? >>>>> scsi-osd is in SCSI Architecture Model, they are object-based storage? if >>>>> rados depend on scsi-osd(osd.ko,libosd.ko.....)? >>>>Ceph OSDs are Object Storage Devices/Daemons. They are conceptually >>>>similar to SCSI OSDs but are not at all the same thing. >>>> >>>>> 3.do you have ceph call flow,document(except wiki),let me know ceph >>>>> architecture quickly. >>>>Unfortunately, no. However, Sage's thesis (which is available on the >>>>Ceph website) has a pretty good description of the protocols, if not >>>>the module architecture. You can check that out for a lot more >>>>information than is on the wiki. :) >>>>-Greg >>> >>> >>> > > > -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
