这篇文章主要为大家展示了“cinder如何配置多ceph储存池”，内容简而易懂，条理清晰，希望能够帮助大家解决疑惑，下面让小编带领大家一起研究并学习一下“cinder如何配置多ceph储存池”这篇文章吧。

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I. Ceph

要配置Ceph以使用不同的存储设备，请参阅: Ceph 2 speed storage with CRUSH.

II. Cinder

假设调用了两个池:

• rbd-sata 指向 SATA rack

• rbd-ssd 指向 SSD rack

II.1 配置操作

Cinder 配置文件:

#多后端选项
#定义多个卷后端组的名称
enabled_backends=rbd-sata,rbd-ssd

#定义上面的组
[rbd-sata]
volume_driver=cinder.volume.driver.RBDDriver
rbd_pool=cinder-sata
volume_backend_name=RBD_SATA
# 如果启用cephX需要配置下面内容
#rbd_user=cinder
#rbd_secret_uuid=
[rbd-ssd]
volume_driver=cinder.volume.driver.RBDDriver
rbd_pool=cinder-ssd
volume_backend_name=RBD_SSD
#如果启用cephX需要配置下面内容
#rbd_user=cinder
#rbd_secret_uuid=

最终创建两个卷类型，分别指向各自的后端。

$ cinder type-create ssd
+--------------------------------------+------+
|                  ID                  | Name |
+--------------------------------------+------+
| b1522968-e4fa-4372-8ac4-3925b7c79ee1 | ssd  |
+--------------------------------------+------+

$ cinder type-create sata
+--------------------------------------+------+
|                  ID                  | Name |
+--------------------------------------+------+
| b50bf5a3-6044-4392-beeb-432302f6421c | sata |
+--------------------------------------+------+

然后创建指针

$cinder type-key ssd set volume_backend_name=RBD_SSD
$cinder type-key sata set volume_backend_name=RBD_SATA
$cinder extra-specs-list
+--------------------------------------+------+---------------------------------------+
|                  ID                  | Name |              extra_specs              |
+--------------------------------------+------+---------------------------------------+
| b1522968-e4fa-4372-8ac4-3925b7c79ee1 | ssd  |  {u'volume_backend_name': u'RBD_SSD'} |
| b50bf5a3-6044-4392-beeb-432302f6421c | sata | {u'volume_backend_name': u'RBD_SATA'} |
+--------------------------------------+------+---------------------------------------+

然后重启cinder服务

$ sudo restart cinder-api ; sudo restart cinder-scheduler ; sudo restart cinder-volume

II.2. 使用它

$ cinder create --volume_type ssd --display_name vol-ssd 1
+---------------------+--------------------------------------+
|       Property      |                Value                 |
+---------------------+--------------------------------------+
|     attachments     |                  []                  |
|  availability_zone  |                 nova                 |
|       bootable      |                false                 |
|      created_at     |      2013-04-22T14:54:53.917580      |
| display_description |                 None                 |
|     display_name    |               vol-ssd                |
|          id         | 4c777d96-66e4-4f85-815c-92d4503c5c8c |
|       metadata      |                  {}                  |
|         size        |                  1                   |
|     snapshot_id     |                 None                 |
|     source_volid    |                 None                 |
|        status       |               creating               |
|     volume_type     |                 ssd                  |
+---------------------+--------------------------------------+

$ cinder create --volume_type ssd --display_name vol-sata 1
+---------------------+--------------------------------------+
|       Property      |                Value                 |
+---------------------+--------------------------------------+
|     attachments     |                  []                  |
|  availability_zone  |                 nova                 |
|       bootable      |                false                 |
|      created_at     |      2013-04-22T14:54:58.831327      |
| display_description |                 None                 |
|     display_name    |               vol-sata               |
|          id         | 8e347bd1-2044-40a2-ae87-ee9a23cddd71 |
|       metadata      |                  {}                  |
|         size        |                  1                   |
|     snapshot_id     |                 None                 |
|     source_volid    |                 None                 |
|        status       |               creating               |
|     volume_type     |                 ssd                  |
+---------------------+--------------------------------------+

验证是否配置生效

$ rbd -p cinder-ssd ls
volume-8e347bd1-2044-40a2-ae87-ee9a23cddd71

$ rbd -p cinder-sata ls
volume-4c777d96-66e4-4f85-815c-92d4503c5c8c

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