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Change-Id: I47830b1bc61c8b1a0f3350932d15aa3ce88fa672
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.. _launch-instance-cinder:
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Block Storage
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~~~~~~~~~~~~~
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Create a volume
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---------------
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#. Source the ``demo`` credentials to perform
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the following steps as a non-administrative project:
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.. code-block:: console
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$ . demo-openrc
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.. end
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#. Create a 1 GB volume:
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.. code-block:: console
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$ openstack volume create --size 1 volume1
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+---------------------+--------------------------------------+
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| Field | Value |
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+---------------------+--------------------------------------+
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| attachments | [] |
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| availability_zone | nova |
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| bootable | false |
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| consistencygroup_id | None |
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| created_at | 2016-03-08T14:30:48.391027 |
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| description | None |
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| encrypted | False |
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| id | a1e8be72-a395-4a6f-8e07-856a57c39524 |
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| multiattach | False |
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| name | volume1 |
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| properties | |
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| replication_status | disabled |
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| size | 1 |
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| snapshot_id | None |
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| source_volid | None |
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| status | creating |
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| type | None |
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| updated_at | None |
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| user_id | 684286a9079845359882afc3aa5011fb |
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+---------------------+--------------------------------------+
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.. end
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#. After a short time, the volume status should change from ``creating``
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to ``available``:
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.. code-block:: console
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$ openstack volume list
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+--------------------------------------+--------------+-----------+------+-------------+
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| ID | Display Name | Status | Size | Attached to |
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+--------------------------------------+--------------+-----------+------+-------------+
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| a1e8be72-a395-4a6f-8e07-856a57c39524 | volume1 | available | 1 | |
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+--------------------------------------+--------------+-----------+------+-------------+
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.. end
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Attach the volume to an instance
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--------------------------------
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#. Attach a volume to an instance:
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.. code-block:: console
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$ openstack server add volume INSTANCE_NAME VOLUME_NAME
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.. end
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Replace ``INSTANCE_NAME`` with the name of the instance and ``VOLUME_NAME``
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with the name of the volume you want to attach to it.
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**Example**
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Attach the ``volume1`` volume to the ``provider-instance`` instance:
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.. code-block:: console
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$ openstack server add volume provider-instance volume1
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.. end
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.. note::
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This command provides no output.
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#. List volumes:
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.. code-block:: console
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$ openstack volume list
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+--------------------------------------+--------------+--------+------+--------------------------------------------+
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| ID | Display Name | Status | Size | Attached to |
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+--------------------------------------+--------------+--------+------+--------------------------------------------+
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| a1e8be72-a395-4a6f-8e07-856a57c39524 | volume1 | in-use | 1 | Attached to provider-instance on /dev/vdb |
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+--------------------------------------+--------------+--------+------+--------------------------------------------+
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.. end
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#. Access your instance using SSH and use the ``fdisk`` command to verify
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presence of the volume as the ``/dev/vdb`` block storage device:
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.. code-block:: console
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$ sudo fdisk -l
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Disk /dev/vda: 1073 MB, 1073741824 bytes
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255 heads, 63 sectors/track, 130 cylinders, total 2097152 sectors
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Units = sectors of 1 * 512 = 512 bytes
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Sector size (logical/physical): 512 bytes / 512 bytes
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I/O size (minimum/optimal): 512 bytes / 512 bytes
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Disk identifier: 0x00000000
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Device Boot Start End Blocks Id System
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/dev/vda1 * 16065 2088449 1036192+ 83 Linux
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Disk /dev/vdb: 1073 MB, 1073741824 bytes
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16 heads, 63 sectors/track, 2080 cylinders, total 2097152 sectors
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Units = sectors of 1 * 512 = 512 bytes
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Sector size (logical/physical): 512 bytes / 512 bytes
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I/O size (minimum/optimal): 512 bytes / 512 bytes
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Disk identifier: 0x00000000
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Disk /dev/vdb doesn't contain a valid partition table
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.. end
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.. note::
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You must create a file system on the device and mount it
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to use the volume.
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For more information about how to manage volumes, see the
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`Manage volumes
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<http://docs.openstack.org/user-guide/common/cli-manage-volumes.html>`__
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in OpenStack End User Guide.
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Return to :ref:`launch-instance`.
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