That’s is, OpenStack is not aware yet of the backend that servers the /var/lib/nova/instances directory ; not that I’m aware of :) - Razique On Oct 28, 2013, at 22:35, Ray Sun <xiaoq...@gmail.com> wrote:
> Thanks for all your response. > > So libvirt can support ISCSI LUN, but OpenStack didn't provide such options > yet? > > Best Regards > -- Ray > > > On Tue, Oct 29, 2013 at 1:11 AM, Razique Mahroua <razique.mahr...@gmail.com> > wrote: > The only thing is that you need to create the volumes on your ISCSI backend > first, so libvirt can use them, otherwise as a shared storage, works fine. > ISCSI always gave me nice speeds compared to NFS > > On Oct 28, 2013, at 10:04, Chris Friesen <chris.frie...@windriver.com> wrote: > > > That works for one client. How do you synchronize access between multiple > > clients? > > > > Also, for iSCSI it looks like libvirt can't create/delete volumes, that > > needs to be done on the server. > > > > Chris > > > > On 10/28/2013 10:49 AM, Razique Mahroua wrote: > >> Libvrit does support ISCSI LUN as backends, meaning you can mount the > >> ISCSI block on every compute node and you should be fine > >> - Razique > >> > >> On Oct 28, 2013, at 8:54, Chris Friesen <chris.frie...@windriver.com> > >> wrote: > >> > >>> On 10/28/2013 09:35 AM, Ray Sun wrote: > >>>> Daniel, > >>>> Thanks for you response. But I am still confusing about use a iscsi > >>>> device, if I want to use it as shared storage, first I need to attach to > >>>> a node as a block storage, then I mount it to other compute nodes using > >>>> NFS. The problem is that this will make a big lost on performance. > >>>> Currently nova already support to create a new VM on ceph RBD, but why > >>>> we can not create it on a block storage? > >>> > >>> ceph and NFS are both designed for simultaneous access by multiple > >>> clients. > >>> > >>> iSCSI is not. > >>> > >>> Chris > >>> > >>> > >>> _______________________________________________ > >>> Mailing list: > >>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > >>> Post to : openstack@lists.openstack.org > >>> Unsubscribe : > >>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > >> > > > > > _______________________________________________ > Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > Post to : openstack@lists.openstack.org > Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > >
signature.asc
Description: Message signed with OpenPGP using GPGMail
_______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : openstack@lists.openstack.org Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
