hi!
I am newbie to openstack, I am planning to make Ha deployment of openstack. I have been going through lot documentation,But i am confused. I wanted to use ceph as block storage, but then do i still need to install cinder also?
Yes, here I wrote what needs to be done to integrate OpenStack and Ceph: http://www.techbar.me/openstack-ceph-integration/
Something like that, because you will use Ceph backend storage through Cinder. Cinder must be installed and configured for Ceph, but it will not store any volumes on that host and it doesn't need to be high h/w, as you said.
Yes, then you would configure the Cinder volume service to use Ceph as the storage backend. See also:
http://docs.openstack.org/trunk/openstack-block-storage/admin/content/ceph-rados.html
In this case, cinder just is a front-end storage: is a connector from vm client to a back-end storage. ceph is a back-end storage: where to store data.
If you don't want to use ceph as a back-end storage, there're a lot of candidates like as: glusterfs, nfs, iscsi ...
By default, cinder uses the local-volume like as a back-end storage through iscsi ... you need to change cinder config if you want to use another.
Depends on your purpose and your infrastructure system which you own, select a corresponding candidate. if you want to build a distributed storage for large scale, i recommend you use ceph.
And for small scale, you can use local disk as a back-end storage..
Asked: 2013-07-23 10:26:51 -0500
Seen: 781 times
Last updated: Jul 29 '13
