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Description
************

"VolumeLimitExceeded:Maximum number of volumes allowed (10) exceeded" error observed even though the cinder
quota has been updated to 10000 volumes.

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Version
********

[root@seal17 ~(keystone_admin)]# yum list installed | grep openstack-cinder
openstack-cinder.noarch              2015.1.2-4.el7ost       @rhelosp-7.0-puddle

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Steps to reproduce
*******************

1) Update quota using the following commands
   cinder quota-update  --volumes 10000 <tenant-id for admin/demo/services>
   cinder quota-class-update --volumes 10000 <admin/demo/services>

2) openstack-service restart cinder

3) Check that the quota values have been updated.

[root@seal17 ~(keystone_admin)]# cinder quota-show  admin
+------------------+-------+
|     Property     | Value |
+------------------+-------+
| backup_gigabytes |  1000 |
|     backups      |   10  |
|    gigabytes     |  1000 |
| gigabytes_iscsi  |   -1  |
|    snapshots     |   10  |
| snapshots_iscsi  |   -1  |
|     volumes      | 10000 |
|  volumes_iscsi   |   -1  |
+------------------+-------+
[root@seal17 ~(keystone_admin)]# 
[root@seal17 ~(keystone_admin)]# cinder quota-show  demo
+------------------+-------+
|     Property     | Value |
+------------------+-------+
| backup_gigabytes |  1000 |
|     backups      |   10  |
|    gigabytes     |  1000 |
| gigabytes_iscsi  |   -1  |
|    snapshots     |   10  |
| snapshots_iscsi  |   -1  |
|     volumes      | 10000 |
|  volumes_iscsi   |   -1  |
+------------------+-------+
[root@seal17 ~(keystone_admin)]# cinder quota-show  services
+------------------+-------+
|     Property     | Value |
+------------------+-------+
| backup_gigabytes |  1000 |
|     backups      |   10  |
|    gigabytes     |  1000 |
| gigabytes_iscsi  |   -1  |
|    snapshots     |   10  |
| snapshots_iscsi  |   -1  |
|     volumes      | 10000 |
|  volumes_iscsi   |   -1  |
+------------------+-------+
[root@seal17 ~(keystone_admin)]# 
[root@seal17 ~(keystone_admin)]# cinder quota-class-show  admin
+------------------+-------+
|     Property     | Value |
+------------------+-------+
| backup_gigabytes |  1000 |
|     backups      |   10  |
|    gigabytes     |  1000 |
| gigabytes_iscsi  |   -1  |
|    snapshots     |   10  |
| snapshots_iscsi  |   -1  |
|     volumes      | 10000 |
|  volumes_iscsi   |   -1  |
+------------------+-------+
[root@seal17 ~(keystone_admin)]# cinder quota-class-show  demo
+------------------+-------+
|     Property     | Value |
+------------------+-------+
| backup_gigabytes |  1000 |
|     backups      |   10  |
|    gigabytes     |  1000 |
| gigabytes_iscsi  |   -1  |
|    snapshots     |   10  |
| snapshots_iscsi  |   -1  |
|     volumes      | 10000 |
|  volumes_iscsi   |   -1  |
+------------------+-------+
[root@seal17 ~(keystone_admin)]# cinder quota-class-show services
+------------------+-------+
|     Property     | Value |
+------------------+-------+
| backup_gigabytes |  1000 |
|     backups      |   10  |
|    gigabytes     |  1000 |
| gigabytes_iscsi  |   -1  |
|    snapshots     |   10  |
| snapshots_iscsi  |   -1  |
|     volumes      | 10000 |
|  volumes_iscsi   |   -1  |
+------------------+-------+
[root@seal17 ~(keystone_admin)]# 
[root@seal17 ~(keystone_admin)]# 

4) Create 10 volumes ( or old limit number)
[root@seal17 ~(keystone_admin)]# cinder list
+--------------------------------------+-----------+--------------+------+-------------+----------+--------------------------------------+
|                  ID                  |   Status  | Display Name | Size | Volume Type | Bootable |             Attached to              |
+--------------------------------------+-----------+--------------+------+-------------+----------+--------------------------------------+
| 0664d5bf-c159-470c-8ef9-325e2afb405e | available |    t6vol1    |  1   |      -      |  false   |                                      |
| 156fdd02-00ca-427e-a7be-4ca245f352d5 |   in-use  |     vol1     |  1   |      -      |  false   | 6e56ec06-3287-4d02-90db-69905ecda71f |
| 2b2d1e6a-7be1-407c-bfea-20c5ce8d853d | available |    t4vol1    |  1   |      -      |  false   |                                      |
| 3eb23ddf-9c33-4d46-b9a1-25ffcaf8c888 | available |    t3vol1    |  1   |      -      |  false   |                                      |
| 54cb660a-2b11-4322-a662-9104d612eb76 | available |    t0vol1    |  1   |      -      |  false   |                                      |
| 8b612ec0-524d-4876-9609-b04dc63f3891 | available |    t8vol1    |  1   |      -      |  false   |                                      |
| 95165dcb-d3cf-4e58-86aa-e2ed4859299f | available |    t5vol1    |  1   |      -      |  false   |                                      |
| 9c525949-b4af-4d61-91a5-69072604852d | available |    t1vol1    |  1   |      -      |  false   |                                      |
| c3df32f7-a1de-47a2-9589-b448f9c22a00 | available |    t2vol1    |  1   |      -      |  false   |                                      |
| f408af10-1bdf-4102-8fd5-86a915950835 | available |    t9vol1    |  1   |      -      |  false   |                                      |
+--------------------------------------+-----------+--------------+------+-------------+----------+--------------------------------------+
[root@seal17 ~(keystone_admin)]# 
[root@seal17 ~(keystone_admin)]#

5) Try exceeding the old limit value and error will be observed.
 
[root@seal17 ~(keystone_admin)]# cinder create --display-name vol2 1
ERROR: VolumeLimitExceeded: Maximum number of volumes allowed (10) exceeded (HTTP 413) (Request-ID: req-2bc25450-0fce-4ad0-a2f0-5d44203eeb16)
[root@seal17 ~(keystone_admin)]#