Comment 26 for bug 1334974

Currently booting from volume using Ceph as a backend. The flavors being used for the instances deployed were originally set to 8gb even though each was boot from volume. Scheduler was refusing to provision an instance due to not having enough usable disk space;

2016-11-04 13:01:17.802 1907 DEBUG nova.scheduler.filters.disk_filter [req-1811111-8323-4c19-ad05-9ee265c2a655 111112f9e7c94971b2d6363327b111af 1111712795c44edcbc8ffcc331a59113 - - -] (comp17, comp17.domain.net) ram:117562 disk:1024 io_ops:0 instances:55 does not have 8192 MB usable disk, it only has 1024.0 MB usable disk. host_passes /openstack/venvs/nova-12.0.15/lib/python2.7/site-packages/nova/scheduler/filters/disk_filter.py:60

CONFIRMED FOR: LIBERTY