Hi,

i have a cinder type which is using a specific local storage on the compute nodes. The question that i have is if its possible to link a host aggregation with a cinder type? Goal is to have a AZ that uses only the local storage on the compute node (and not the default ceph that we use in the default AZ).

# cinder type-list
+--------------------------------------+----------+-------------+-----------+
|                  ID                  |   Name   | Description | Is_Public |
+--------------------------------------+----------+-------------+-----------+
| 5d9fa2d2-2b0c-4966-a7db-c60d5f0fc787 | lvm-hv01 |      -      |    True   |
| 854f43d5-093c-4ecd-bc39-c361908eb59d |   ceph   |             |    True   |
+--------------------------------------+----------+-------------+-----------+

# cinder extra-specs-list 
+--------------------------------------+----------+---------------------------------------+
|                  ID                  |   Name   |              extra_specs              |
+--------------------------------------+----------+---------------------------------------+
| 5d9fa2d2-2b0c-4966-a7db-c60d5f0fc787 | lvm-hv01 | {u'volume_backend_name': u'lvm-hv01'} |
| 854f43d5-093c-4ecd-bc39-c361908eb59d |   ceph   |   {u'volume_backend_name': u'ceph'}   |
+--------------------------------------+----------+---------------------------------------+

# nova aggregate-list
+----+----------+-------------------+
| Id | Name     | Availability Zone |
+----+----------+-------------------+
| 1  | lvm-hv01 | lvm-hv01          |
| 2  | nova     | nova              |
+----+----------+-------------------+

# nova aggregate-details 1
+----+----------+-------------------+---------------+------------------------------+
| Id | Name     | Availability Zone | Hosts         | Metadata                     |
+----+----------+-------------------+---------------+------------------------------+
| 1  | lvm-hv01 | lvm-hv01          | 'hv01' | 'availability_zone=lvm-hv01' |
+----+----------+-------------------+---------------+------------------------------+

May be its not even possible and I need to create an own AZ in nova for that?