[Openstack-operators] [Ceph] Different storage types on different disk types

Arne Wiebalck arne.wiebalck at cern.ch
Mon Oct 26 15:32:53 UTC 2015

Hi Adam,

We provide various volume types which differ in

- performance (implemented via different IOPS QoS specifications, not via different hardware),
- service quality (e.g. volumes on a Ceph pool that is on Diesel-backed servers, so via separate hardware),
- a combination of the two,
- geographical location (with a second Ceph instance in another data centre).

I think it is absolutely realistic/manageable to use the same Ceph cluster for various use cases.


> On 26 Oct 2015, at 14:02, Adam Lawson <alawson at aqorn.com> wrote:
> Has anyone deployed Ceph and accommodate different disk/performance requirements? I.e. Saving ephemeral storage and boot volumes on SSD and less important content such as object storage, glance images on SATA or something along those lines?
> Just looking at it's realistic (or discover best practice) on using the same Ceph cluster for both use cases...
> //adam
> Adam Lawson
> AQORN, Inc.
> 427 North Tatnall Street
> Ste. 58461
> Wilmington, Delaware 19801-2230
> Toll-free: (844) 4-AQORN-NOW ext. 101
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