On 03/07/2016 09:32 PM, Mike Smith wrote:
You can also run Ceph for nova ephemeral disks without Cinder at all.
You’d do that in nova.conf.
We use both at Overstock. Ceph for nova ephemeral for general use, and
also Ceph as one option in a multi-backend Cinder configuration. We
also use it for a Glance store, which is a fantastic option because it
makes disk provisioning for Nova instant, since you’re essentially
snapshotting and image RBD into an RBD for Nova/Cinder.
Out of curiosity, how is the performance of doing this (using ceph for
nova ephemeral disks); any details u can share on the network required
to do this (decently) and what app. usage patterns u have that can
tolerate the latency (whatever it is)?
-Josh
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