667db23312
This patch adds a short section on how to set a volume to read-only. Change-Id: If3658151b84472c552299bd657e946a3b71a2871 Closes-Bug: #1298140
437 lines
31 KiB
XML
437 lines
31 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE section [
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<!ENTITY nbsp " ">
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]>
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<section xmlns="http://docbook.org/ns/docbook"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0"
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xml:id="cli_manage_volumes">
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<?dbhtml stop-chunking?>
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<title>Manage volumes</title>
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<para>A volume is a detachable block storage device, similar to a
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USB hard drive. You can attach a volume to only one instance.
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To create and manage volumes, you use a combination of nova
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and cinder client commands.</para>
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<para audience="enduser">This example creates a
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<literal>my-new-volume</literal> volume based on an
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image.</para>
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<section xml:id="cli_migrate_volumes" audience="adminuser">
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<title>Migrate a volume</title>
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<para>As an administrator, you can migrate a volume with its
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data from one location to another in a manner that is
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transparent to users and workloads. You can migrate only
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detached volumes with no snapshots.</para>
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<para>Possible use cases for data migration:</para>
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<itemizedlist>
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<listitem>
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<para>Bring down a physical storage device for
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maintenance without disrupting workloads.</para>
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</listitem>
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<listitem>
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<para>Modify the properties of a volume.</para>
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</listitem>
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<listitem>
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<para>Free up space in a thinly-provisioned back
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end.</para>
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</listitem>
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</itemizedlist>
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<para>Migrate a volume, as follows:</para>
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<screen><prompt>$</prompt> <userinput>cinder migrate <replaceable>volumeID</replaceable> <replaceable>destinationHost</replaceable> --force-host-copy=<replaceable>True|False</replaceable></userinput></screen>
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<para>Where <literal>--force-host-copy=True</literal> forces
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the generic host-based migration mechanism and bypasses
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any driver optimizations.</para>
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<note>
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<para>If the volume is in use or has snapshots, the
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specified host destination cannot accept the
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volume.</para>
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<para>If the user is not an administrator, the migration
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fails.</para>
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</note>
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</section>
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<section xml:id="cli_list_volumes" audience="enduser">
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<title>Create a volume</title>
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<procedure>
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<step>
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<para>List images, and note the ID of the image to use
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for your volume:</para>
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<screen><prompt>$</prompt> <userinput>nova image-list</userinput></screen>
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<screen><?db-font-size 65%?><computeroutput>+--------------------------------------+---------------------------------+--------+--------------------------------------+
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| ID | Name | Status | Server |
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+--------------------------------------+---------------------------------+--------+--------------------------------------+
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| 397e713c-b95b-4186-ad46-6126863ea0a9 | cirros-0.3.1-x86_64-uec | ACTIVE | |
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| df430cc2-3406-4061-b635-a51c16e488ac | cirros-0.3.1-x86_64-uec-kernel | ACTIVE | |
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| 3cf852bd-2332-48f4-9ae4-7d926d50945e | cirros-0.3.1-x86_64-uec-ramdisk | ACTIVE | |
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| 7e5142af-1253-4634-bcc6-89482c5f2e8a | myCirrosImage | ACTIVE | 84c6e57d-a6b1-44b6-81eb-fcb36afd31b5 |
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| 89bcd424-9d15-4723-95ec-61540e8a1979 | mysnapshot | ACTIVE | f51ebd07-c33d-4951-8722-1df6aa8afaa4 |
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+--------------------------------------+---------------------------------+--------+--------------------------------------+</computeroutput></screen>
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</step>
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<step>
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<para>List the availability zones, and note the ID of
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the availability zone in which to create your
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volume:</para>
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<screen><prompt>$</prompt> <userinput>nova availability-zone-list</userinput></screen>
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<screen><?db-font-size 65%?><computeroutput>+-----------------------+----------------------------------------+
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| Name | Status |
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+-----------------------+----------------------------------------+
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| internal | available |
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| |- devstack-grizzly | |
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| | |- nova-conductor | enabled :-) 2013-07-25T16:50:44.000000 |
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| | |- nova-consoleauth | enabled :-) 2013-07-25T16:50:44.000000 |
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| | |- nova-scheduler | enabled :-) 2013-07-25T16:50:44.000000 |
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| | |- nova-cert | enabled :-) 2013-07-25T16:50:44.000000 |
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| | |- nova-network | enabled :-) 2013-07-25T16:50:44.000000 |
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| nova | available |
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| |- devstack-grizzly | |
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| | |- nova-compute | enabled :-) 2013-07-25T16:50:39.000000 |
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+-----------------------+----------------------------------------+</computeroutput></screen>
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</step>
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<step>
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<para>Create a volume with 8 GB of space. Specify the
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availability zone and image:</para>
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<screen><prompt>$</prompt> <userinput>cinder create 8 --display-name my-new-volume --image-id 397e713c-b95b-4186-ad46-6126863ea0a9 --availability-zone nova</userinput></screen>
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<screen><?db-font-size 65%?><computeroutput>+---------------------+--------------------------------------+
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| Property | 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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| created_at | 2013-07-25T17:02:12.472269 |
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| display_description | None |
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| display_name | my-new-volume |
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| id | 573e024d-5235-49ce-8332-be1576d323f8 |
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| image_id | 397e713c-b95b-4186-ad46-6126863ea0a9 |
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| metadata | {} |
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| size | 8 |
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| snapshot_id | None |
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| source_volid | None |
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| status | creating |
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| volume_type | None |
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+---------------------+--------------------------------------+</computeroutput></screen>
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</step>
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<step>
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<para>To verify that your volume was created
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successfully, list the available volumes:</para>
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<screen><prompt>$</prompt> <userinput>cinder list</userinput></screen>
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<screen><?db-font-size 65%?><computeroutput>+--------------------------------------+-----------+-----------------+------+-------------+----------+-------------+
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| ID | Status | Display Name | Size | Volume Type | Bootable | Attached to |
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+--------------------------------------+-----------+-----------------+------+-------------+----------+-------------+
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| 573e024d-5235-49ce-8332-be1576d323f8 | available | my-new-volume | 8 | None | true | |
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| bd7cf584-45de-44e3-bf7f-f7b50bf235e3 | available | my-bootable-vol | 8 | None | true | |
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+--------------------------------------+-----------+-----------------+------+-------------+----------+-------------+</computeroutput></screen>
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<para>If your volume was created successfully, its
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status is <literal>available</literal>. If its
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status is <literal>error</literal>, you might have
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exceeded your quota.</para>
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</step>
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</procedure>
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</section>
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<section xml:id="cli_attach_volume" audience="enduser">
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<title>Attach a volume to an instance</title>
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<procedure>
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<step>
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<para>Attach your volume to a server:</para>
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<screen><prompt>$</prompt> <userinput>nova volume-attach 84c6e57d-a6b1-44b6-81eb-fcb36afd31b5 573e024d-5235-49ce-8332-be1576d323f8 /dev/vdb</userinput></screen>
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<screen><?db-font-size 65%?><computeroutput>+----------+--------------------------------------+
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| Property | Value |
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+----------+--------------------------------------+
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| device | /dev/vdb |
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| serverId | 84c6e57d-a6b1-44b6-81eb-fcb36afd31b5 |
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| id | 573e024d-5235-49ce-8332-be1576d323f8 |
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| volumeId | 573e024d-5235-49ce-8332-be1576d323f8 |
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+----------+--------------------------------------+</computeroutput></screen>
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<para>Note the ID of your volume.</para>
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</step>
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<step>
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<para>Show information for your volume:</para>
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<screen><prompt>$</prompt> <userinput>cinder show 573e024d-5235-49ce-8332-be1576d323f8</userinput></screen>
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<screen><?db-font-size 65%?><computeroutput>+------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| Property | Value |
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+------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| attachments | [{u'device': u'/dev/vdb', u'server_id': u'84c6e57d-a6b1-44b6-81eb-fcb36afd31b5', u'id': u'573e024d-5235-49ce-8332-be1576d323f8', u'volume_id': u'573e024d-5235-49ce-8332-be1576d323f8'}] |
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| availability_zone | nova |
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| bootable | true |
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| created_at | 2013-07-25T17:02:12.000000 |
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| display_description | None |
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| display_name | my-new-volume |
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| id | 573e024d-5235-49ce-8332-be1576d323f8 |
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| metadata | {} |
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| os-vol-host-attr:host | devstack-grizzly |
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| os-vol-tenant-attr:tenant_id | 66265572db174a7aa66eba661f58eb9e |
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| size | 8 |
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| snapshot_id | None |
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| source_volid | None |
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| status | in-use |
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| volume_image_metadata | {u'kernel_id': u'df430cc2-3406-4061-b635-a51c16e488ac', u'image_id': u'397e713c-b95b-4186-ad46-6126863ea0a9', u'ramdisk_id': u'3cf852bd-2332-48f4-9ae4-7d926d50945e', u'image_name': u'cirros-0.3.1-x86_64-uec'} |
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| volume_type | None |
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+------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+</computeroutput></screen>
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<para>The output shows that the volume is attached to
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the server with ID
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<literal>84c6e57d-a6b1-44b6-81eb-fcb36afd31b5</literal>,
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is in the nova availability zone, and is
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bootable.</para>
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</step>
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</procedure>
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</section>
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<section xml:id="cli_extend_volumes" audience="enduser">
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<title>Resize a volume</title>
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<procedure>
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<step>
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<para>To resize your volume, you must first detach it
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from the server.</para>
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<para>To detach the volume from your server, pass the
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server ID and volume ID to the command:</para>
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<screen><prompt>$</prompt> <userinput>nova volume-detach 84c6e57d-a6b1-44b6-81eb-fcb36afd31b5 573e024d-5235-49ce-8332-be1576d323f8</userinput></screen>
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<para>The <command>volume-detach</command> command
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does not return any output.</para>
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</step>
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<step>
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<para>List volumes:</para>
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<screen><prompt>$</prompt> <userinput>cinder list</userinput></screen>
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<screen><?db-font-size 65%?><computeroutput>+--------------------------------------+-----------+-----------------+------+-------------+----------+-------------+
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| ID | Status | Display Name | Size | Volume Type | Bootable | Attached to |
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+--------------------------------------+-----------+-----------------+------+-------------+----------+-------------+
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| 573e024d-5235-49ce-8332-be1576d323f8 | available | my-new-volume | 8 | None | true | |
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| bd7cf584-45de-44e3-bf7f-f7b50bf235e3 | available | my-bootable-vol | 8 | None | true | |
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+--------------------------------------+-----------+-----------------+------+-------------+----------+-------------+</computeroutput></screen>
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<para>Note that the volume is now available.</para>
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</step>
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<step>
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<para>Resize the volume by passing the volume ID and
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the new size (a value greater than the old one) as
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parameters:</para>
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<screen><prompt>$</prompt> <userinput>cinder extend <replaceable>573e024d-5235-49ce-8332-be1576d323f8</replaceable> <replaceable>10</replaceable></userinput></screen>
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<para>The <command>extend</command> command does not
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return any output.</para>
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</step>
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</procedure>
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</section>
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<section xml:id="cli_delete_volumes" audience="enduser">
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<title>Delete a volume</title>
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<procedure>
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<step>
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<para>To delete your volume, you must first detach it
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from the server.</para>
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<para>To detach the volume from your server and check
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for the list of existing volumes, see steps 1 and
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2 mentioned in <xref linkend="cli_extend_volumes"
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/>.</para>
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</step>
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<step>
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<para>Delete the volume:</para>
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<screen><prompt>$</prompt> <userinput>cinder delete my-new-volume</userinput></screen>
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<para>The delete command does not return any
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output.</para>
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</step>
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<step>
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<para>List the volumes again, and note that the status
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of your volume is
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<literal>deleting</literal>:</para>
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<screen><prompt>$</prompt> <userinput>cinder list</userinput></screen>
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<screen><?db-font-size 65%?><computeroutput>+--------------------------------------+-----------+-----------------+------+-------------+----------+-------------+
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| ID | Status | Display Name | Size | Volume Type | Bootable | Attached to |
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+--------------------------------------+-----------+-----------------+------+-------------+----------+-------------+
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| 573e024d-5235-49ce-8332-be1576d323f8 | deleting | my-new-volume | 8 | None | true | |
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| bd7cf584-45de-44e3-bf7f-f7b50bf235e3 | available | my-bootable-vol | 8 | None | true | |
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+--------------------------------------+-----------+-----------------+------+-------------+----------+-------------+</computeroutput></screen>
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<para>When the volume is fully deleted, it disappears
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from the list of volumes:</para>
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<screen><prompt>$</prompt> <userinput>cinder list</userinput></screen>
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<screen><?db-font-size 65%?><computeroutput>+--------------------------------------+-----------+-----------------+------+-------------+----------+-------------+
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| ID | Status | Display Name | Size | Volume Type | Bootable | Attached to |
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+--------------------------------------+-----------+-----------------+------+-------------+----------+-------------+
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| bd7cf584-45de-44e3-bf7f-f7b50bf235e3 | available | my-bootable-vol | 8 | None | true | |
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+--------------------------------------+-----------+-----------------+------+-------------+----------+-------------+</computeroutput></screen>
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</step>
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</procedure>
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</section>
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<section xml:id="cli_transfer_volumes" audience="enduser">
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<title>Transfer a volume</title>
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<para>You can transfer a volume from one owner to another by
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using the <command>cinder transfer*</command> commands.
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The volume donor, or original owner, creates a transfer
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request and sends the created transfer ID and
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authorization key to the volume recipient. The volume
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recipient, or new owner, accepts the transfer by using the
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ID and key.</para>
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<note>
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<para>The procedure for volume transfer is intended for tenants (both the volume donor and recipient) within the same cloud.</para>
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</note>
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<para>Use cases include:</para>
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<itemizedlist>
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<listitem>
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<para>Create a custom bootable volume or a volume with
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a large data set and transfer it to the end
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customer.</para>
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</listitem>
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<listitem>
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<para>For bulk import of data to the cloud, the data
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ingress system creates a new Block Storage volume,
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copies data from the physical device, and
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transfers device ownership to the end user.</para>
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</listitem>
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</itemizedlist>
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<section xml:id="create_volume_transfer">
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<title>Create a volume transfer request</title>
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<procedure>
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<step>
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<para>While logged in as the volume donor, list
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available volumes:</para>
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<screen><prompt>$</prompt> <userinput>cinder list</userinput></screen>
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<screen><computeroutput>+--------------------------------------+-----------+--------------+------+-------------+----------+-------------+
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| ID | Status | Display Name | Size | Volume Type | Bootable | Attached to |
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+--------------------------------------+-----------+--------------+------+-------------+----------+-------------+
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| 72bfce9f-cacf-477a-a092-bf57a7712165 | error | None | 1 | None | false | |
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| a1cdace0-08e4-4dc7-b9dc-457e9bcfe25f | available | None | 1 | None | false | |
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+--------------------------------------+-----------+--------------+------+-------------+----------+-------------+</computeroutput></screen>
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</step>
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<step>
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<para>As the volume donor, request a volume
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transfer authorization code for a specific
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volume:</para>
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<screen><prompt>$</prompt> <userinput>cinder transfer-create <replaceable>volumeID</replaceable></userinput></screen>
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<para>The volume must be in an ‘available’ state
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or the request will be denied. If the transfer
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request is valid in the database (that is, it
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has not expired or been deleted), the volume
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is placed in an <literal>awaiting
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transfer</literal> state. For
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example:</para>
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<screen><prompt>$</prompt> <userinput>cinder transfer-create a1cdace0-08e4-4dc7-b9dc-457e9bcfe25f</userinput></screen>
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<screen><computeroutput>+------------+--------------------------------------+
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| Property | Value |
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+------------+--------------------------------------+
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| auth_key | b2c8e585cbc68a80 |
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| created_at | 2013-10-14T15:20:10.121458 |
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| id | 6e4e9aa4-bed5-4f94-8f76-df43232f44dc |
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| name | None |
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| volume_id | a1cdace0-08e4-4dc7-b9dc-457e9bcfe25f |
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+------------+--------------------------------------+</computeroutput></screen>
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<note>
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<para>Optionally, you can specify a name for
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the transfer by using the
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<code>--display-name
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<replaceable>displayName</replaceable></code>
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parameter.</para>
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</note>
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</step>
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<step>
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<para>Send the volume transfer ID and
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authorization key to the new owner (for
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example, by email).</para>
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</step>
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<step>
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<para>View pending transfers:</para>
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<screen><prompt>$</prompt> <userinput>cinder transfer-list</userinput></screen>
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<screen><computeroutput>+--------------------------------------+--------------------------------------+------+
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| ID | VolumeID | Name |
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+--------------------------------------+--------------------------------------+------+
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| 6e4e9aa4-bed5-4f94-8f76-df43232f44dc | a1cdace0-08e4-4dc7-b9dc-457e9bcfe25f | None |
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+--------------------------------------+--------------------------------------+------+</computeroutput></screen>
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</step>
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<step>
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<para>After the volume recipient, or new owner,
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accepts the transfer, you can see that the
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transfer is no longer available:</para>
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<screen><prompt>$</prompt> <userinput>cinder transfer-list</userinput></screen>
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<screen><computeroutput>+----+-----------+------+
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| ID | Volume ID | Name |
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+----+-----------+------+
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+----+-----------+------+</computeroutput></screen>
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</step>
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</procedure>
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</section>
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<section xml:id="accept_volume_transfer">
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<title>Accept a volume transfer request</title>
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<procedure>
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<step>
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<para>As the volume recipient, you must first
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obtain the transfer ID and authorization key
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from the original owner.</para>
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</step>
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<step>
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<para>Display the transfer request details using
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the ID:</para>
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<screen><prompt>$</prompt> <userinput>cinder transfer-show <replaceable>transferID</replaceable></userinput></screen>
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<para>For example:</para>
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<screen><prompt>$</prompt> <userinput>cinder transfer-show 6e4e9aa4-bed5-4f94-8f76-df43232f44dc</userinput></screen>
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<screen><computeroutput>+------------+--------------------------------------+
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| Property | Value |
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+------------+--------------------------------------+
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| created_at | 2013-10-14T15:20:10.000000 |
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| id | 6e4e9aa4-bed5-4f94-8f76-df43232f44dc |
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| name | None |
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| volume_id | a1cdace0-08e4-4dc7-b9dc-457e9bcfe25f |
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+------------+--------------------------------------+</computeroutput></screen>
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</step>
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<step>
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<para>Accept the request:</para>
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<screen><prompt>$</prompt> <userinput>cinder transfer-accept <replaceable>transferID</replaceable> <replaceable>authKey</replaceable></userinput></screen>
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<para>For example:</para>
|
||
<screen><prompt>$</prompt> <userinput>cinder transfer-accept 6e4e9aa4-bed5-4f94-8f76-df43232f44dc b2c8e585cbc68a80</userinput></screen>
|
||
<screen><computeroutput>+-----------+--------------------------------------+
|
||
| Property | Value |
|
||
+-----------+--------------------------------------+
|
||
| id | 6e4e9aa4-bed5-4f94-8f76-df43232f44dc |
|
||
| name | None |
|
||
| volume_id | a1cdace0-08e4-4dc7-b9dc-457e9bcfe25f |
|
||
+-----------+--------------------------------------+</computeroutput></screen>
|
||
<note>
|
||
<para>If you do not have a sufficient quota
|
||
for the transfer, the transfer is
|
||
refused.</para>
|
||
</note>
|
||
</step>
|
||
</procedure>
|
||
</section>
|
||
<section xml:id="delete_transfer">
|
||
<title>Delete a volume transfer</title>
|
||
<procedure>
|
||
|
||
<step>
|
||
<para>List available volumes and their
|
||
statuses:</para>
|
||
<screen><prompt>$</prompt> <userinput>cinder list</userinput></screen>
|
||
<screen><computeroutput>+--------------------------------------+-------------------+--------------+------+-------------+----------+-------------+
|
||
| ID | Status | Display Name | Size | Volume Type | Bootable | Attached to |
|
||
+--------------------------------------+-------------------+--------------+------+-------------+----------+-------------+
|
||
| 72bfce9f-cacf-477a-a092-bf57a7712165 | error | None | 1 | None | false | |
|
||
| a1cdace0-08e4-4dc7-b9dc-457e9bcfe25f | awaiting-transfer | None | 1 | None | false | |
|
||
+--------------------------------------+-------------------+--------------+------+-------------+----------+-------------+</computeroutput></screen>
|
||
</step>
|
||
<step>
|
||
<para>Find the matching transfer ID:</para>
|
||
<screen><prompt>$</prompt> <userinput>cinder transfer-list</userinput></screen>
|
||
<screen><computeroutput>+--------------------------------------+--------------------------------------+------+
|
||
| ID | VolumeID | Name |
|
||
+--------------------------------------+--------------------------------------+------+
|
||
| a6da6888-7cdf-4291-9c08-8c1f22426b8a | a1cdace0-08e4-4dc7-b9dc-457e9bcfe25f | None |
|
||
+--------------------------------------+--------------------------------------+------+</computeroutput></screen>
|
||
</step>
|
||
<step>
|
||
<para>Delete the volume:</para>
|
||
<screen><prompt>$</prompt> <userinput>cinder transfer-delete <replaceable>transferID</replaceable></userinput></screen>
|
||
<para>For example:</para>
|
||
<screen><prompt>$</prompt> <userinput>cinder transfer-delete a6da6888-7cdf-4291-9c08-8c1f22426b8a</userinput></screen>
|
||
</step>
|
||
<step>
|
||
<para>The transfer list is now empty and the
|
||
volume is again available for transfer:</para>
|
||
<screen><prompt>$</prompt> <userinput>cinder transfer-list</userinput></screen>
|
||
<screen><computeroutput>+----+-----------+------+
|
||
| ID | Volume ID | Name |
|
||
+----+-----------+------+
|
||
+----+-----------+------+</computeroutput></screen>
|
||
<screen><prompt>$</prompt> <userinput>cinder list</userinput></screen>
|
||
<screen><computeroutput>+--------------------------------------+-----------+--------------+------+-------------+----------+-------------+
|
||
| ID | Status | Display Name | Size | Volume Type | Bootable | Attached to |
|
||
+--------------------------------------+-----------+--------------+------+-------------+----------+-------------+
|
||
| 72bfce9f-cacf-477a-a092-bf57a7712165 | error | None | 1 | None | false | |
|
||
| a1cdace0-08e4-4dc7-b9dc-457e9bcfe25f | available | None | 1 | None | false | |
|
||
+--------------------------------------+-----------+--------------+------+-------------+----------+-------------+</computeroutput></screen>
|
||
</step>
|
||
</procedure>
|
||
</section>
|
||
</section>
|
||
<xi:include href="section_cli_cinder_read-only-volumes.xml"/>
|
||
</section>
|