I am not sure of its status -- it looks like it was part of 3.6 planning but it recently was moved to 4.0 on the wiki. There is a video walkthrough of the running integration from this past August [1]. You would need to just deploy Cinder and Keystone -- no need for all the other bits. Again, it appears that oVirt might even have some development to containerize a small Cinder/Glance OpenStack setup [2]. [1] https://www.youtube.com/watch?v=elEkGfjLITs [2] http://www.ovirt.org/CinderGlance_Docker_Integration -- Jason Dillaman Red Hat Ceph Storage Engineering dillaman@xxxxxxxxxx http://www.redhat.com ----- Original Message ----- > From: "Gaetan SLONGO" <gslongo@xxxxxxxxxxxxx> > To: "Hugo Slabbert" <hugo@xxxxxxxxxxx> > Cc: ceph-users@xxxxxxxxxxxxxx, "Somnath Roy" <Somnath.Roy@xxxxxxxxxxx>, > "Jason Dillaman" <dillaman@xxxxxxxxxx> > Sent: Thursday, November 5, 2015 2:37:16 AM > Subject: Re: iSCSI over RDB is a good idea ? > Thank you everybody for your interesting answers. > I saw the Cinder integration in oVirt. Did someone already done that ? I > don't know OpenStack (yet). Is it possible to deploy the Cinder component > only without the complete OpenStack setup ? > Thanks ! > ----- Original Message ----- > De: "Hugo Slabbert" <hugo@xxxxxxxxxxx> > À: "Somnath Roy" <Somnath.Roy@xxxxxxxxxxx>, "Jason Dillaman" > <dillaman@xxxxxxxxxx>, "Gaetan SLONGO" <gslongo@xxxxxxxxxxxxx> > Cc: ceph-users@xxxxxxxxxxxxxx > Envoyé: Mercredi 4 Novembre 2015 23:30:56 > Objet: Re: RE: iSCSI over RDB is a good idea ? > > We are using SCST over RBD and not seeing much of a degradation...Need to > > make sure you tune SCST properly and use multiple session.. > Sure. My post was not intended to say that iSCSI over RBD is *slow*, just > that it scales differently than native RBD client access. > If I have 10 OSD hosts with a 10G link each facing clients, provided the OSDs > can saturate the 10G links, I have 100G of aggregate nominal throughput > under ideal conditions. If I put an iSCSI target (or an active/passive pair > of targets) in front of that to connect iSCSI initiators to RBD devices, my > aggregate nominal throughput for iSCSI clients under ideal conditions is > 10G. > If you don't flat-top that, then it should perform just fine and the only hit > should be the slight (possibly insignificant, depending on hardware and > layout) latency bump from the extra hop. > Don't get me wrong: I'm not trying to knock iSCSI over RBD at all. It's a > perfectly legitimate and solid setup for connecting RBD-unaware clients into > RBD storage. My intention was just to point out the difference in > architecture and that sizing of the target hosts is a consideration that's > different from a pure RBD environment. > Though, I suppose if network utilization at the targets becomes an issue at > any point, you could scale out with additional targets and balance the iSCSI > clients across them. > -- > Hugo > hugo@xxxxxxxxxxx: email, xmpp/jabber > also on Signal > ---- From: Somnath Roy <Somnath.Roy@xxxxxxxxxxx> -- Sent: 2015-11-04 - 13:48 > ---- > > We are using SCST over RBD and not seeing much of a degradation...Need to > > make sure you tune SCST properly and use multiple session.. > > > > Thanks & Regards > > Somnath > > > > -----Original Message----- > > From: ceph-users [mailto:ceph-users-bounces@xxxxxxxxxxxxxx] On Behalf Of > > Hugo Slabbert > > Sent: Wednesday, November 04, 2015 1:44 PM > > To: Jason Dillaman; Gaetan SLONGO > > Cc: ceph-users@xxxxxxxxxxxxxx > > Subject: Re: iSCSI over RDB is a good idea ? > > > >> The disadvantage of the iSCSI design is that it adds an extra hop between > >> your VMs and the backing Ceph cluster. > > > > ...and introduces a bottleneck. iSCSI initiators are "dumb" in comparison > > to native ceph/rbd clients. Whereas native clients will talk to all the > > relevant OSDs directly, iSCSI initiators will just talk to the target > > (unless there is some awesome magic in the RBD/tgt integration that I'm > > unaware of). So the targets and their connectivity are a bottleneck. > > > > -- > > Hugo > > hugo@xxxxxxxxxxx: email, xmpp/jabber > > also on Signal > > > > > -- > www.it-optics.com > > Gaëtan SLONGO | IT & Project Manager > Boulevard Initialis, 28 - 7000 Mons, BELGIUM > Company : +32 (0)65 84 23 85 > Direct : +32 (0)65 32 85 88 > Fax : +32 (0)65 84 66 76 > GPG Key : gslongo-gpg_key.asc > > - Please consider your environmental responsibility before printing this > e-mail - _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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