块设备存储

块设备存储

新建卷

  1. 加载 ``demo``证书,作为非管理员项目执行下面的步骤:

    $ . demo-openrc
    
  2. 创建一个 1 GB 的卷:

    $ openstack volume create --size 1 volume1
    +---------------------+--------------------------------------+
    | Field               | Value                                |
    +---------------------+--------------------------------------+
    | attachments         | []                                   |
    | availability_zone   | nova                                 |
    | bootable            | false                                |
    | consistencygroup_id | None                                 |
    | created_at          | 2016-03-08T14:30:48.391027           |
    | description         | None                                 |
    | encrypted           | False                                |
    | id                  | a1e8be72-a395-4a6f-8e07-856a57c39524 |
    | multiattach         | False                                |
    | name                | volume1                              |
    | properties          |                                      |
    | replication_status  | disabled                             |
    | size                | 1                                    |
    | snapshot_id         | None                                 |
    | source_volid        | None                                 |
    | status              | creating                             |
    | type                | None                                 |
    | updated_at          | None                                 |
    | user_id             | 684286a9079845359882afc3aa5011fb     |
    +---------------------+--------------------------------------+
    
  3. 过会,卷状态应该从``creating`` 变成``available``:

    $ openstack volume list
    +--------------------------------------+--------------+-----------+------+-------------+
    | ID                                   | Display Name | Status    | Size | Attached to |
    +--------------------------------------+--------------+-----------+------+-------------+
    | a1e8be72-a395-4a6f-8e07-856a57c39524 | volume1      | available |    1 |             |
    +--------------------------------------+--------------+-----------+------+-------------+
    

附加卷到一个实例上

  1. 附加卷到一个实例上:

    $ openstack server add volume INSTANCE_NAME VOLUME_NAME
    

    使用实例名称替换 INSTANCE_NAME 并使用你想要附加卷的名称替换``VOLUME_NAME ``

    例子

    附加 volume1 ``卷到 ``provider-instance 云主机:

    $ openstack server add volume provider-instance volume1
    

    注解

    这个命令执行后没有输出。

  2. 列出卷:

    $ openstack volume list
    +--------------------------------------+--------------+--------+------+--------------------------------------------+
    | ID                                   | Display Name | Status | Size | Attached to                                |
    +--------------------------------------+--------------+--------+------+--------------------------------------------+
    | a1e8be72-a395-4a6f-8e07-856a57c39524 | volume1      | in-use |    1 | Attached to provider-instance on /dev/vdb  |
    +--------------------------------------+--------------+--------+------+--------------------------------------------+
    
  3. 使用SSH方式访问你的实力,并使用``fdisk`` 命令验证`/dev/vdb`块存储设备作为卷存在。

     $ sudo fdisk -l
    
     Disk /dev/vda: 1073 MB, 1073741824 bytes
     255 heads, 63 sectors/track, 130 cylinders, total 2097152 sectors
     Units = sectors of 1 * 512 = 512 bytes
     Sector size (logical/physical): 512 bytes / 512 bytes
     I/O size (minimum/optimal): 512 bytes / 512 bytes
     Disk identifier: 0x00000000
    
        Device Boot      Start         End      Blocks   Id  System
    /dev/vda1   *       16065     2088449     1036192+  83  Linux
    
     Disk /dev/vdb: 1073 MB, 1073741824 bytes
     16 heads, 63 sectors/track, 2080 cylinders, total 2097152 sectors
     Units = sectors of 1 * 512 = 512 bytes
     Sector size (logical/physical): 512 bytes / 512 bytes
     I/O size (minimum/optimal): 512 bytes / 512 bytes
     Disk identifier: 0x00000000
    
     Disk /dev/vdb doesn't contain a valid partition table
    

    注解

    你必须在设备上创建文件系统并挂载它,才能使用这个卷。

想了解更多关于如何管理卷, 请参考OpenStack终端用户手册里的`Manage volumes <http://docs.openstack.org/user-guide/common/cli-manage-volumes.html>`__

返回到:ref: launch-instance

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