ceea9dda0d
Applied review feedback. Fixed 'grey bars' formatting. Fixed gerunds and lists Added abbreviations and references Change-Id: I104d678ce3ea52bddcbc141f8aad49ea1e1971db Signed-off-by: Keane Lim <keane.lim@windriver.com>
194 lines
8.7 KiB
ReStructuredText
194 lines
8.7 KiB
ReStructuredText
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.. kzy1552678575570
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.. _add-a-storage-tier-using-the-cli:
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================================
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Add a Storage Tier Using the CLI
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================================
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You can add custom storage tiers for |OSDs| to meet specific container disk
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requirements.
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.. rubric:: |context|
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For more information about storage tiers, see |stor-doc|: :ref:`Storage on
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Storage Hosts <storage-hosts-storage-on-storage-hosts>`.
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.. rubric:: |prereq|
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.. _adding-a-storage-tier-using-the-cli-ul-eyx-pwm-k3b:
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- On an All-in-One Simplex or Duplex system, controller-0 must be
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provisioned and unlocked before you can add a secondary tier.
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- On Standard \(2+2\) and Standard with Storage \(2+2+2\) system, both
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controllers must be unlocked and available before secondary tiers can be
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added.
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.. rubric:: |proc|
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#. Ensure that the **storage** tier has a full complement of OSDs.
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You cannot add new tiers until the default **storage** tier contains
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the number of OSDs required by the replication factor for the storage
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backend.
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.. code-block:: none
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~(keystone)admin)$ system storage-tier-show ceph_cluster storage
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+--------------+--------------------------------------+
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| Property | Value |
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+--------------+--------------------------------------+
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| uuid | acc8fb74-6dc9-453f-85c8-884f85522639 |
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| name | storage |
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| type | ceph |
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| status | in-use |
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| backend_uuid | 649830bf-b628-4170-b275-1f0b01cfc859 |
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| cluster_uuid | 364d4f89-bbe1-4797-8e3b-01b745e3a471 |
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| OSDs | [0, 1] |
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| created_at | 2018-02-15T19:32:28.682391+00:00 |
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| updated_at | 2018-02-15T20:01:34.557959+00:00 |
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+--------------+--------------------------------------+
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#. List the names of any other existing storage tiers.
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To create a new tier, you must assign a unique name.
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.. code-block:: none
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~(keystone)admin)$ system storage-tier-list ceph_cluster
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+---------+---------+--------+--------------------------------------+
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| uuid | name | status | backend_using |
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+---------+---------+--------+--------------------------------------+
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| acc8... | storage | in-use | 649830bf-b628-4170-b275-1f0b01cfc859 |
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+---------+---------+--------+--------------------------------------+
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#. Use the :command:`system storage-tier-add` command to add a new tier.
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For example, to add a storage tier called **gold**:
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.. code-block:: none
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~(keystone)admin)$ system storage-tier-add ceph_cluster gold
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+--------------+--------------------------------------+
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| Property | Value |
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+--------------+--------------------------------------+
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| uuid | 220f17e2-8564-4f4d-8665-681f73d13dfb |
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| name | gold |
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| type | ceph |
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| status | defined |
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| backend_uuid | None |
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| cluster_uuid | 5c48ed22-2a03-4b90-abc4-73757a594494 |
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| OSDs | [0, 1] |
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| created_at | 2018-02-19T21:36:59.302059+00:00 |
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| updated_at | None |
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+--------------+--------------------------------------+
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#. Add a storage backend to provide access to the tier.
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.. code-block:: none
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~(keystone)admin)$ system storage-backend-add -n <name> -t <tier_uuid> ceph
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For example, to add a storage backend named **gold-store** using the
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new tier:
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.. code-block:: none
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~(keystone)admin)$ system storage-backend-add -n gold-store -t 220f17e2-8564-4f4d-8665-681f73d13dfb ceph
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System configuration has changed.
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Please follow the administrator guide to complete configuring the system.
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+-----------+--------------+----------+------------+-----------+----------+--------------------+
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| uuid | name | backend | state | task | services | capabilities |
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+-----------+--------------+----------+------------+-----------+----------+--------------------+
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| 23e396f2- | shared_servi | external | configured | None | glance | |
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| | ces | | | | | |
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| 558e5573- | gold-store | ceph | configured | None | None | min_replication: 1 |
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| | | | | | | replication: 2 |
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| | | | | | | |
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| 5ccdf53a- | ceph-store | ceph | configured | provision | None | min_replication: 1 |
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| | | | |-storage | | replication: 2 |
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| | | | | | | |
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+-----------+--------------+----------+------------+-----------+----------+--------------------+
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#. Enable the Cinder service on the new storage backend.
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.. note::
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The Cinder Service is ONLY applicable to the |prod-os| application.
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.. code-block:: none
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~(keystone)admin)$ system storage-backend-modify gold-store
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+----------------------+-----------------------------------------+
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| Property | Value |
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+----------------------+-----------------------------------------+
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| backend | ceph |
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| name | gold-store |
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| state | configuring |
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| task | {u'controller-1': 'applying-manifests', |
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| | u'controller-0': 'applying-manifests'} |
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| services | cinder |
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| capabilities | {u'min_replication': u'1', |
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| | u'replication': u'2'} |
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| object_gateway | False |
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| ceph_total_space_gib | 0 |
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| object_pool_gib | None |
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| cinder_pool_gib | 0 |
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| glance_pool_gib | None |
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| ephemeral_pool_gib | None |
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| tier_name | gold |
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| tier_uuid | 220f17e2-8564-4f4d-8665-681f73d13dfb |
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| created_at | 2018-02-20T19:55:49.912568+00:00 |
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| updated_at | 2018-02-20T20:14:57.476317+00:00 |
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+----------------------+-----------------------------------------+
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.. note::
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During storage backend configuration, Openstack services may not be
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available for a short period of time. Proceed to the next step once
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the configuration is complete.
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.. rubric:: |postreq|
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You must assign OSDs to the tier. For more information, see |stor-doc|:
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:ref:`Provision Storage on a Storage Host
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<provision-storage-on-a-controller-or-storage-host-using-horizon>`.
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To delete a tier that is not in use by a storage backend and does not have
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OSDs assigned to it, use the command:
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.. code-block:: none
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~(keystone)admin)$ system storage-tier-delete
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usage: system storage-tier-delete <cluster name or uuid> <storage tier name or uuid>
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For example:
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.. code-block:: none
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~(keystone)admin)$ system storage-tier-delete ceph_cluster 268c967b-207e-4641-bd5a-6c05cc8706ef
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To use the tier for a container volume, include the ``--volume-type`` parameter
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when creating the Cinder volume, and supply the name of the cinder type.
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For example:
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.. code-block:: none
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~(keystone)admin)$ cinder create --volume-type ceph-gold --name centos-guest 2
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+---------+-----------+-------------+-----------+
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| ID | Name | Description | Is_Public |
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+---------+-----------+-------------+-----------+
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| 77b2... | ceph-gold | - | True |
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| df25... | ceph | - | True |
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+---------+-----------+-------------+-----------+
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