Hi, Thank you that's exactly what I was after.
kind regards Pshem On Tue, 1 Dec 2015 at 01:19 James Page <[email protected]> wrote: > Hi Pshem > > On Thu, Nov 26, 2015 at 12:18 AM, Pshem Kowalczyk <[email protected]> > wrote: > >> Hi, >> >> In this particular case I just want to make sure that my settings for >> CRUSH are used for various pools and be able to define my own pools (see >> below). >> >> I'm trying to create two different pools for both nova-compute and >> cinder-ceph (one with SSDs the other with spinning drives). I have managed >> to create another 'local storage' (lvm based) cinder instance (and that >> works fine with volume-type). But I'm completely unsure as how to keep one >> ceph instance with different types of pools for cinder. At this stage >> doesn't look like the cinder (or cinder-ceph) charm allows you to specify >> the pool to use (it allows for one for volume-group for local LVM). For the >> nova-compute I'm basing the setup on is here: >> https://ceph.com/planet/openstack-nova-configure-multiple-ceph-backends-on-one-hypervisor/ >> (which >> requires for a single nova-compute charm to be aware of 2 pools). The >> second one is probably less important since I (probably, not tried that >> yet) create deploy two nova-compute charms with different rbd-pool settings >> and point back to the same ceph charm. >> > > You can deploy the cinder-ceph charm multiple times to support your > multiple cinder pool requirement (so long as they both use the same ceph > cluster): > > juju deploy cinder-ceph ceph-ssd-backend > juju deploy cinder-ceph ceph-spinning-disk-backend > juju add-relation cinder ceph-ssd-backend > juju add-relation cinder ceph-spinning-disk-backend > > This will create two pools in the Ceph cluster ('ceph-ssd-backend' and > 'ceph-spinning-disk-backend'); right now you will have to tune the CRUSH > map by hand post deployment to target SSD and spinning disks for each pool; > however I do know that the storage team at Canonical are working on > features on the Ceph charms to make pool management and configuration a-lot > easier todo via Juju actions - so although this is a bit painful today, it > should get alot easier... > > That should resolve you challenges with regards to cinder presented > volumes; right now the nova-compute libvirt rbd backend is usable in the > nova-compute charm, but it won't support Sebastian's two compute daemon > configuration as described in the article you linked to. > > HTH > >
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