[Openstack-operators] Ceph Implementations

Tim Bell Tim.Bell at cern.ch
Mon Nov 10 20:16:23 UTC 2014

+1 for a CentOS 6 deployment, you need to upgrade the qemu, not the kernel.

We run 3,000+ hypervisors with ceph on a 6 linux rebuild. It's not out of the box but RDO can really help too.


> -----Original Message-----
> From: Robert van Leeuwen [mailto:Robert.vanLeeuwen at spilgames.com]
> Sent: 10 November 2014 14:57
> To: Erik McCormick; MailingLists - EWS
> Cc: openstack-operators at lists.openstack.org
> Subject: Re: [Openstack-operators] Ceph Implementations
> >> We tried installing Ceph on CentOS 6 (storage nodes and nova nodes)
> >> but discovered that the kernel that is included in RDO (for nova)
> >> doesn't include rbd support in qemu-img
> >You shouldn't need a special kernel unless you're going to do things like try to
> mount an rbd image directly ...
> > What you do  need are the qemu-kvm and qemu-img packages from the
> >ceph-extras repo
> Last time I checked those were pretty out of date.
> You can use recent RHEV packages with ceph support:
> Get the latest qemu-kvm-rhev source package here:
> http://ftp.redhat.com/redhat/linux/enterprise/6Server/en/RHEV/SRPMS/
> Build the rpm, install and install librbd1 package You need to link the so file for it
> to work:
> ln -s /usr/lib64/librbd.so.1  /usr/lib64/qemu/librbd.so.1
> Cheers.
> Robert van Leeuwen
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