I am attempting to sort out where creation of volumes takes place in Cinder, and have had great success by using volume-types. This will allow us to aim smaller volumes at SSD drives, larger ones at NAS or SAN clusters. However, a decision was made (for some unexplained reason) to host running database images on Cinder volumes. This would include the entire structure, not just the database files.

So, I created a new volume-type, pointed it where I wanted it to be, and started there. When I create a volume, use that volume-type, no issues, creates the volume every time. If I try to add the --image-id argument to the create, one of two things happens. Not using volume-type, it fails with a disk space issue (WHICH IS FINE, because the default is to a very small area). If I use volume-type, I get an "error" condition, which when I look in the cinder-scheduler log gives me an error message as follows:

2013-10-29 09:41:51  WARNING [cinder.scheduler.filters.capacity_filter] Insufficient free space for volume creation (requested / avail): 50/2.0

The 2.0 GB is the space available on my default for Cinder. I know WHERE the information is coming from, but not why.

Here is Controller Cinder Config (Small disk area, runs cinder-api, cinder-scheduler, cinder-volume default) http://paste.openstack.org/show/50131/

Here is Cinder config from server running large disks http://paste.openstack.org/show/50132/

Cinder information:

root@amrwobl222:/var/log/cinder# cinder type-list
+--------------------------------------+--------------+
|                  ID                  |     Name     |
+--------------------------------------+--------------+
| 51271f02-cd45-49c9-b36e-ffd8cbef08c1 |  DB_Storage  |
| b9964907-97ec-4308-866b-043ccb7f4a19 |  Big_Disk2   |
| f6f9d846-299e-46d8-b10a-d3f84d86d526 | Bulk_Storage |
+--------------------------------------+--------------+
root@amrwobl222:/var/log/cinder# cinder extra-specs-list
+--------------------------------------+--------------+-----------------------------------------+
|                  ID                  |     Name     |               extra_specs               |
+--------------------------------------+--------------+-----------------------------------------+
| 51271f02-cd45-49c9-b36e-ffd8cbef08c1 |  DB_Storage  |  {u'volume_backend_name': u'LVM_iSCSI'} |
| b9964907-97ec-4308-866b-043ccb7f4a19 |  Big_Disk2   | {u'volume_backend_name': u'LVM_iSCSI2'} |
| f6f9d846-299e-46d8-b10a-d3f84d86d526 | Bulk_Storage |  {u'volume_backend_name': u'LVM_iSCSI'} |

+--------------------------------------+--------------+-----------------------------------------+

Am I missing something, or does one argument (--image-id) negate the other (--volume-type). BTW, I have tried the arguments in mutiple order, just in case, always the same error.

Thanks