On Wed, 6 Jun 2012, Travis Rhoden wrote: > Sorry for the re-post. First attempt got eaten by the mailing list > because it wasn't plain text. My first attempt! > > > With CephFS not quite ready for production, what would be the > > recommended way for sharing Ceph to older operating systems? > > Specifically, I want to share a file system (i.e. mount a common > > directory) on several CentOS5 and CentOS6 nodes. I don't think I can > > mount an RBD from more than one node, so what is my best bet? > > > > Mount an RBD on a file "head" and export it via NFS? > > > > I feel like that is the only sane choice, but wanted to ask in case I > > am missing something better. Two things: * 2.6.18 is crazy-old. It's possible the libceph and rbd bits could be merged in, but getting the fs to work with ancient VFS will be a world of pain. * NFS reexport works in basic scenarios, but should not be used in production as there are various conditions that can lead to ESTALE. Making it work is somewhere on the mid-term roadmap, but it'll be a while. Your best bet is to run cephfs on a modern kernel. But be warned, we aren't ready to support the fs just yet. Soon! sage > > - Travis > > > > > > On Wed, Jun 6, 2012 at 9:58 AM, Sam Zaydel <sam.zaydel@xxxxxxxxxxx> wrote: > >> > >> I think you will be able to build from source the client bits that you > >> need, but I saw this from an earlier similar discussion mentioning > >> Python version, so I would make sure that python > 2.5 is used, > >> realistically 2.6 should be the norm today. > >> > >> http://comments.gmane.org/gmane.comp.file-systems.ceph.devel/5717 > >> > >> On Tue, Jun 5, 2012 at 6:16 PM, <Eric_YH_Chen@xxxxxxxxxx> wrote: > >> > Dear All: > >> > > >> >ÿÿÿÿ My ceph cluster is installed on Ubuntu 12.04 with kernel 3.2.0. > >> > > >> >ÿÿÿÿ But I have a situation that I may need to mount cephfs on centos 5.7, which with kernel 2.6.18. > >> > > >> > (that is to say , I only need to execute mount.ceph on the centos 5.7, not the whole ceph system) > >> > > >> > I want to find a solution that can provide reliable and high availability share file system. > >> > > >> > Is it possible to do this? Or any other recommend way? Ex: export NFSÿÿ > >> > > >> > Thanks! > >> > > >> > > >> > -- > >> > 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 > >> > >> > >> > >> -- > >> Inked by Sam Zaydel > >> -- > >> 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 > >
