OSD down potentially causing no new volume creation

[Jagga Soorma <jagga13@xxxxxxxxx>]

Hi Guys,

I am new to ceph and have a openstack deployment that uses ceph as the backend storage.  Recently we had a failed OSD disk which seems to have caused issues for any new volume creation.  I am really surprised that having a single osd drive down or node down could cause such a large impact.  Here is that issue that seems to be listed which made me think this:

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Issue 7: Cinder volume create fails consistently as insufficient disk space gets reported when an OSD is down.

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Can someone confirm if this is expected behavior and if so then why?  Is there a way around this?

Thanks for your advice!

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