In this section, we use the Cinder CLI to verify that the configuration presented in the section called “Sample cinder.conf” has been properly initialized by Cinder.
stack@ostk-controller:~/$ cinder service-list
+------------------+--------------------------------+------+---------+-------+------------------------+-----------------+
| Binary | Host | Zone | Status | State | Updated_at | Disabled Reason |
+------------------+--------------------------------+------+---------+-------+------------------------+-----------------+
| cinder-scheduler | ostk-controller | nova | enabled | up | 2014-05-20T17:14:12.00 | None |
| cinder-volume | ostk-controller@cdot-iscsi | nova | enabled | up | 2014-05-20T17:14:10.00 | None |
| cinder-volume | ostk-controller@cdot-nfs | nova | enabled | up | 2014-05-20T17:14:11.00 | None |
+------------------+--------------------------------+------+---------+-------+------------------------+-----------------+
ostk-controller@cdot-iscsi is the backend defined by the configuration
stanza [cdot-iscsi].
ostk-controller@cdot-nfs is the backend defined by the configuration
stanza [cdot-nfs].
In this section, we create a variety of Cinder volume Types that leverage both the default capabilities of each driver, as well as the NetApp specific extra specs described in Table 4.11, “NetApp supported Extra Specs for use with Cinder volume Types”
The iscsi type provisions Cinder volumes onto any backend that
uses the iSCSI storage protocol (in this example, that would be
[cdot-iscsi]).
The nfs type provisions Cinder volumes onto any backend that uses
the NFS storage protocol (in this example, that would be
[cdot-nfs]).
The gold type provisions Cinder volumes onto any pure-SSD pool on
any backend that has a SnapMirror relationship (in this example, that
would be [cdot-nfs], although only one of the four NFS exports
defined in /etc/cinder/nfs_shares has this support).
The silver type provisions Cinder volumes onto any backend that
has deduplication enabled (in this example, that would be
[cdot-nfs], although only one of the four NFS exports defined in
/etc/cinder/nfs_shares has this support).
The bronze type provisions Cinder volumes onto any backend that
has compression enabled (in this example, that would be
[cdot-nfs], although only one of the four NFS exports defined in
/etc/cinder/nfs_shares has this support).
The encrypted type provisions Cinder volumes onto any backend
that has Flexvol encryption enabled (NVE) (in this example, that
would be [cdot-iscsi]).
$ cinder type-create iscsi
+--------------------------------------+-------+
| ID | Name |
+--------------------------------------+-------+
| 46cecec0-a040-476c-9475-036ca5577e6a | iscsi |
+--------------------------------------+-------+
$ cinder type-create nfs
+--------------------------------------+------+
| ID | Name |
+--------------------------------------+------+
| 7564ec5c-a81b-4c62-8376-fdcab62037a2 | nfs |
+--------------------------------------+------+
$ cinder type-create gold
+--------------------------------------+------+
| ID | Name |
+--------------------------------------+------+
| 0ac5c001-d5fa-4fce-a9e3-e2cce7460027 | gold |
+--------------------------------------+------+
$ cinder type-create silver
+--------------------------------------+--------+
| ID | Name |
+--------------------------------------+--------+
| f820211a-ee1c-47ff-8f70-2be45112826d | silver |
+--------------------------------------+--------+
$ cinder type-create bronze
+--------------------------------------+--------+
| ID | Name |
+--------------------------------------+--------+
| ae110bfc-0f5a-4e93-abe1-1a31856c0ec7 | bronze |
+--------------------------------------+--------+
$ cinder type-create encrypted
+--------------------------------------+-----------+
| ID | Name |
+--------------------------------------+-----------+
| a564a421-55aa-238a-a4d3-e1438b4002d1 | encrypted |
+--------------------------------------+-----------+
$ cinder type-key iscsi set storage_protocol=iSCSI
$ cinder type-key nfs set storage_protocol=nfs
$ cinder type-key gold set netapp_mirrored=true
$ cinder type-key gold set netapp_disk_type=SSD
$ cinder type-key gold set netapp_hybrid_aggregate="<is> False"
$ cinder type-key silver set netapp_dedup=true
$ cinder type-key bronze set netapp_compression=true
$ cinder type-key encrypted set netapp_flexvol_encryption=true
$ cinder extra-specs-list
+--------------------------------------+-----------+--------------------------------------------+
| ID | Name | extra_specs |
+--------------------------------------+-----------+--------------------------------------------+
| 0ac5c001-d5fa-4fce-a9e3-e2cce7460027 | gold | {'netapp_hybrid_aggregate': '<is> False', |
| | | 'netapp_mirrored': 'true', |
| | | 'netapp_disk_type': 'SSD'} |
| 46cecec0-a040-476c-9475-036ca5577e6a | iscsi | {u'storage_protocol': u'iSCSI'} |
| a564a421-55aa-238a-a4d3-e1438b4002d1 | encrypted | {u'netapp_flexvol_encryption': u'true'} |
| 7564ec5c-a81b-4c62-8376-fdcab62037a2 | nfs | {u'storage_protocol': u'nfs'} |
| ae110bfc-0f5a-4e93-abe1-1a31856c0ec7 | bronze | {u'netapp_compression': u'true'} |
| f820211a-ee1c-47ff-8f70-2be45112826d | silver | {u'netapp_dedup': u'true'} |
+--------------------------------------+-----------+--------------------------------------------+
In this section, we create volumes with no type, as well as each of the previously defined volume types.
$ cinder create --display-name myGold --volume-type gold 1
+--------------------------------+--------------------------------------+
| Property | Value |
+--------------------------------+--------------------------------------+
| attachments | [] |
| availability_zone | nova |
| bootable | false |
| created_at | 2014-05-20T17:23:57.000000 |
| description | None |
| encrypted | False |
| id | 3678281e-3924-4512-952a-5b89713fac4d |
| metadata | {} |
| name | myGold |
| os-vol-host-attr:host | None |
| os-vol-mig-status-attr:migstat | None |
| os-vol-mig-status-attr:name_id | None |
| os-vol-tenant-attr:tenant_id | f42d5597fb084480a9626c2ca844db3c |
| size | 1 |
| snapshot_id | None |
| source_volid | None |
| status | creating |
| user_id | a9ef3a9f935f4761861afb003986bdab |
| volume_type | gold |
+--------------------------------+--------------------------------------+
$ cinder create --display-name mySilver --volume-type silver 1
+--------------------------------+--------------------------------------+
| Property | Value |
+--------------------------------+--------------------------------------+
| attachments | [] |
| availability_zone | nova |
| bootable | false |
| created_at | 2014-05-20T17:24:12.000000 |
| description | None |
| encrypted | False |
| id | 6dd3e64d-ca02-4156-8532-24294db89329 |
| metadata | {} |
| name | mySilver |
| os-vol-host-attr:host | None |
| os-vol-mig-status-attr:migstat | None |
| os-vol-mig-status-attr:name_id | None |
| os-vol-tenant-attr:tenant_id | f42d5597fb084480a9626c2ca844db3c |
| size | 1 |
| snapshot_id | None |
| source_volid | None |
| status | creating |
| user_id | a9ef3a9f935f4761861afb003986bdab |
| volume_type | silver |
+--------------------------------+--------------------------------------+
$ cinder create --display-name myBronze --volume-type bronze 1
+--------------------------------+--------------------------------------+
| Property | Value |
+--------------------------------+--------------------------------------+
| attachments | [] |
| availability_zone | nova |
| bootable | false |
| created_at | 2014-05-20T17:24:28.000000 |
| description | None |
| encrypted | False |
| id | 459b388f-ae1d-49bf-9c1d-3fe3b18afad3 |
| metadata | {} |
| name | myBronze |
| os-vol-host-attr:host | None |
| os-vol-mig-status-attr:migstat | None |
| os-vol-mig-status-attr:name_id | None |
| os-vol-tenant-attr:tenant_id | f42d5597fb084480a9626c2ca844db3c |
| size | 1 |
| snapshot_id | None |
| source_volid | None |
| status | creating |
| user_id | a9ef3a9f935f4761861afb003986bdab |
| volume_type | bronze |
+--------------------------------+--------------------------------------+
$ cinder create --display-name myISCSI --volume-type iscsi 1
+--------------------------------+--------------------------------------+
| Property | Value |
+--------------------------------+--------------------------------------+
| attachments | [] |
| availability_zone | nova |
| bootable | false |
| created_at | 2014-05-20T17:25:42.000000 |
| description | None |
| encrypted | False |
| id | 93ef9627-ac75-46ae-820b-f722765d7828 |
| metadata | {} |
| name | myISCSI |
| os-vol-host-attr:host | None |
| os-vol-mig-status-attr:migstat | None |
| os-vol-mig-status-attr:name_id | None |
| os-vol-tenant-attr:tenant_id | f42d5597fb084480a9626c2ca844db3c |
| size | 1 |
| snapshot_id | None |
| source_volid | None |
| status | creating |
| user_id | a9ef3a9f935f4761861afb003986bdab |
| volume_type | iscsi |
+--------------------------------+--------------------------------------+
$ cinder create --display-name myNFS --volume-type nfs 1
+--------------------------------+--------------------------------------+
| Property | Value |
+--------------------------------+--------------------------------------+
| attachments | [] |
| availability_zone | nova |
| bootable | false |
| created_at | 2014-05-20T17:26:03.000000 |
| description | None |
| encrypted | False |
| id | 4ccf1a4c-cfe0-4b35-8435-400547cabcdd |
| metadata | {} |
| name | myNFS |
| os-vol-host-attr:host | None |
| os-vol-mig-status-attr:migstat | None |
| os-vol-mig-status-attr:name_id | None |
| os-vol-tenant-attr:tenant_id | f42d5597fb084480a9626c2ca844db3c |
| size | 1 |
| snapshot_id | None |
| source_volid | None |
| status | creating |
| user_id | a9ef3a9f935f4761861afb003986bdab |
| volume_type | nfs |
+--------------------------------+--------------------------------------+
$ cinder create --display-name myGenericVol 1
+--------------------------------+--------------------------------------+
| Property | Value |
+--------------------------------+--------------------------------------+
| attachments | [] |
| availability_zone | nova |
| bootable | false |
| created_at | 2014-05-20T18:01:02.000000 |
| description | None |
| encrypted | False |
| id | 12938589-3ca9-49a7-bcd7-003bbcd62895 |
| metadata | {} |
| name | myGenericVol |
| os-vol-host-attr:host | None |
| os-vol-mig-status-attr:migstat | None |
| os-vol-mig-status-attr:name_id | None |
| os-vol-tenant-attr:tenant_id | f42d5597fb084480a9626c2ca844db3c |
| size | 1 |
| snapshot_id | None |
| source_volid | None |
| status | creating |
| user_id | a9ef3a9f935f4761861afb003986bdab |
| volume_type | None |
+--------------------------------+--------------------------------------+
$ cinder list
+--------------------------------------+-----------+--------------+------+-------------+----------+-------------+
| ID | Status | Name | Size | Volume Type | Bootable | Attached to |
+--------------------------------------+-----------+--------------+------+-------------+----------+-------------+
| 12938589-3ca9-49a7-bcd7-003bbcd62895 | available | myGenericVol | 1 | None | false | |
| 1f71ccef-781b-4628-b0f7-44030acd8181 | available | myISCSI | 1 | iscsi | false | |
| 3678281e-3924-4512-952a-5b89713fac4d | available | myGold | 1 | gold | false | |
| 459b388f-ae1d-49bf-9c1d-3fe3b18afad3 | available | myBronze | 1 | bronze | false | |
| 4ccf1a4c-cfe0-4b35-8435-400547cabcdd | available | myNFS | 1 | nfs | false | |
| 6dd3e64d-ca02-4156-8532-24294db89329 | available | mySilver | 1 | silver | false | |
| 93ef9627-ac75-46ae-820b-f722765d7828 | available | myISCSI | 1 | iscsi | false | |
+--------------------------------------+-----------+--------------+------+-------------+----------+-------------+
We’ll now look at the local NFS mounts that are present on the node that
is running cinder-volume and look for the volumes that were created
on NFS backends. By mapping the mountpoints to the directories where the
volume files exist, we are able to associate that the volumes were
created in the appropriate FlexVol volume that had the NetApp specific
features enabled that matched the Cinder volume type definitions.
$ mount |grep cinder
10.63.40.153:/vol2_dedup on /opt/stack/data/cinder/mnt/6fbcc46d69a86a6be25f3df3e6ae55ba type nfs (rw,vers=4,addr=10.63.40.153,clientaddr=192.168.114.157)
10.63.40.153:/vol3_compressed on /opt/stack/data/cinder/mnt/aac4e6312b50b1fd6ddaf25d8dec8aaa type nfs (rw,vers=4,addr=10.63.40.153,clientaddr=192.168.114.157)
10.63.40.153:/vol4_mirrored on /opt/stack/data/cinder/mnt/89af08204a543dd0985fa11b16f3d22f type nfs (rw,vers=4,addr=10.63.40.153,clientaddr=192.168.114.157)
10.63.40.153:/vol5_plain on /opt/stack/data/cinder/mnt/e15a92dcf98a7b3fdb3963e39ed0796f type nfs (rw,vers=4,addr=10.63.40.153,clientaddr=192.168.114.157)
$ cd /opt/stack/data/cinder/
$ find . -name volume-\*
./mnt/89af08204a543dd0985fa11b16f3d22f/volume-3678281e-3924-4512-952a-5b89713fac4d [1]
./mnt/aac4e6312b50b1fd6ddaf25d8dec8aaa/volume-459b388f-ae1d-49bf-9c1d-3fe3b18afad3 [2]
./mnt/6fbcc46d69a86a6be25f3df3e6ae55ba/volume-6dd3e64d-ca02-4156-8532-24294db89329 [3]
./mnt/6fbcc46d69a86a6be25f3df3e6ae55ba/volume-4ccf1a4c-cfe0-4b35-8435-400547cabcdd [4]
This is the volume of type gold which was placed on
10.63.40.153:/vol4_mirrored.
This is the volume of type bronze which was placed on
10.63.40.153:/vol3_compressed.
This is the volume of type silver which was placed on
10.63.40.153:/vol2_dedup.
This is the volume of type nfs which was placed on
10.63.40.153:/vol2_dedup. It could have been placed on
10.63.40.153:/vol3_compressed, 10.63.40.153:/vol4_mirrored,
or 10.63.40.153:/vol5_plain as any of those destinations would
have fulfilled the volume type criteria of storage_protocol=nfs.
Note
Note that the volumes of type iscsi, as well
as the volume created without a type did not appear under the NFS
mount points because they were created as iSCSI LUNs within the
NetApp ONTAP systems.
In this section we import an ONTAP iSCSI LUN by specifying it by name or UUID.
$ cinder get-pools
+----------+-----------------------+
| Property | Value |
+----------+-----------------------+
| name | openstack9@iscsi#pool |
+----------+-----------------------+
$ cinder manage --id-type source-name openstack9@iscsi#pool /vol/vol1/lun1
+--------------------------------+--------------------------------------+
| Property | Value |
+--------------------------------+--------------------------------------+
| attachments | [] |
| availability_zone | nova |
| bootable | false |
| created_at | 2014-08-25T15:11:18.000000 |
| description | None |
| encrypted | False |
| id | 9a62ce5f-b125-48e8-8c94-79356b27f2a9 |
| metadata | {} |
| name | None |
| os-vol-host-attr:host | openstack9@iscsi#pool |
| os-vol-mig-status-attr:migstat | None |
| os-vol-mig-status-attr:name_id | None |
| os-vol-tenant-attr:tenant_id | 8b4ef3cd82f145738ad8195e6bd3942c |
| size | 0 |
| snapshot_id | None |
| source_volid | None |
| status | creating |
| user_id | 1b1c9e72e33f4a35b73a8e2d43354d1c |
| volume_type | None |
+--------------------------------+--------------------------------------+
$ cinder manage --id-type source-id openstack9@iscsi#pool 013a7fe0-039b-459e-8cc2-7b59c693139d
+--------------------------------+--------------------------------------+
| Property | Value |
+--------------------------------+--------------------------------------+
| attachments | [] |
| availability_zone | nova |
| bootable | false |
| created_at | 2014-08-25T15:13:18.000000 |
| description | None |
| encrypted | False |
| id | f2c94f4d-adb3-4c3c-a6aa-cb4c52bd2e39 |
| metadata | {} |
| name | None |
| os-vol-host-attr:host | openstack9@iscsi#pool |
| os-vol-mig-status-attr:migstat | None |
| os-vol-mig-status-attr:name_id | None |
| os-vol-tenant-attr:tenant_id | 8b4ef3cd82f145738ad8195e6bd3942c |
| size | 0 |
| snapshot_id | None |
| source_volid | None |
| status | creating |
| user_id | 1b1c9e72e33f4a35b73a8e2d43354d1c |
| volume_type | None |
+--------------------------------+--------------------------------------+
$ cinder list
+--------------------------------------+----------------+------+------+-------------+----------+-------------+
| ID | Status | Name | Size | Volume Type | Bootable | Attached to |
+--------------------------------------+----------------+------+------+-------------+----------+-------------+
| 9a62ce5f-b125-48e8-8c94-79356b27f2a9 | available | None | 1 | None | false | |
+--------------------------------------+----------------+------+------+-------------+----------+-------------+
| f2c94f4d-adb3-4c3c-a6aa-cb4c52bd2e39 | available | None | 1 | None | false | |
+--------------------------------------+----------------+------+------+-------------+----------+-------------+
In this section we import an ONTAP NFS file by specifying its path.
$ cinder get-pools
+----------+------------------------------+
| Property | Value |
+----------+------------------------------+
| name | openstack9@nfs#10.0.0.2:/nfs |
+----------+------------------------------+
$ cinder manage --id-type source-name openstack9@nfs#10.0.0.2:/nfs 10.0.0.2:/nfs/file1
+--------------------------------+--------------------------------------+
| Property | Value |
+--------------------------------+--------------------------------------+
| attachments | [] |
| availability_zone | nova |
| bootable | false |
| created_at | 2014-08-25T15:11:18.000000 |
| description | None |
| encrypted | False |
| id | f068e1f7-f008-4eb3-8a74-bacb24afb49a |
| metadata | {} |
| name | None |
| os-vol-host-attr:host | openstack9@nfs#10.0.0.2:/nfs |
| os-vol-mig-status-attr:migstat | None |
| os-vol-mig-status-attr:name_id | None |
| os-vol-tenant-attr:tenant_id | 8b4ef3cd82f145738ad8195e6bd3942c |
| size | 0 |
| snapshot_id | None |
| source_volid | None |
| status | creating |
| user_id | 1b1c9e72e33f4a35b73a8e2d43354d1c |
| volume_type | None |
+--------------------------------+--------------------------------------+
$ cinder list
+--------------------------------------+----------------+------+------+-------------+----------+-------------+
| ID | Status | Name | Size | Volume Type | Bootable | Attached to |
+--------------------------------------+----------------+------+------+-------------+----------+-------------+
| f068e1f7-f008-4eb3-8a74-bacb24afb49a | available | None | 1 | None | false | |
+--------------------------------------+----------------+------+------+-------------+----------+-------------+
In this section we unmanage a Cinder volume by specifying its ID.
$ cinder list
+--------------------------------------+----------------+------+------+-------------+----------+-------------+
| ID | Status | Name | Size | Volume Type | Bootable | Attached to |
+--------------------------------------+----------------+------+------+-------------+----------+-------------+
| 206a6731-f23b-419d-8131-8bccbbd83647 | available | None | 1 | None | false | |
+--------------------------------------+----------------+------+------+-------------+----------+-------------+
| ad0262e0-bbe6-4b4d-8c36-ea6a361d777a | available | None | 1 | None | false | |
+--------------------------------------+----------------+------+------+-------------+----------+-------------+
$ cinder unmanage 206a6731-f23b-419d-8131-8bccbbd83647
$ cinder list
+--------------------------------------+----------------+------+------+-------------+----------+-------------+
| ID | Status | Name | Size | Volume Type | Bootable | Attached to |
+--------------------------------------+----------------+------+------+-------------+----------+-------------+
| ad0262e0-bbe6-4b4d-8c36-ea6a361d777a | available | None | 1 | None | false | |
+--------------------------------------+----------------+------+------+-------------+----------+-------------+
In this section, we will configure a Cinder volume type, a Cinder QoS spec, and lastly associate the QoS spec with the volume type.
$ cinder type-create vol_type_qos_demo
+--------------------------------------+-------------------+
| ID | Name |
+--------------------------------------+-------------------+
| 7b060008-632c-412d-8fdc-a12351f7dfe4 | vol_type_qos_demo |
+--------------------------------------+-------------------+
$ cinder qos-create qos_demo maxIOPS=100
+----------+--------------------------------------+
| Property | Value |
+----------+--------------------------------------+
| consumer | back-end |
| id | db081cde-1a9a-41bd-a8a3-a0259db7409b |
| name | qos_demo |
| specs | {u'maxIOPS': u'100'} |
+----------+--------------------------------------+
$ cinder qos-associate db081cde-1a9a-41bd-a8a3-a0259db7409b 7b060008-632c-412d-8fdc-a12351f7dfe4
$ cinder qos-list
+--------------------------------------+----------+----------+----------------------+
| ID | Name | Consumer | specs |
+--------------------------------------+----------+----------+----------------------+
| db081cde-1a9a-41bd-a8a3-a0259db7409b | qos_demo | back-end | {u'maxIOPS': u'100'} |
+--------------------------------------+----------+----------+----------------------+
$ cinder create 1 --volume-type vol_type_qos_demo
+---------------------------------------+--------------------------------------+
| Property | Value |
+---------------------------------------+--------------------------------------+
| attachments | [] |
| availability_zone | nova |
| bootable | false |
| consistencygroup_id | None |
| created_at | 2015-04-22T13:39:50.000000 |
| description | None |
| encrypted | False |
| id | 66027b97-11d1-4399-b8c6-031ad8e38da0 |
| metadata | {} |
| multiattach | False |
| name | None |
| os-vol-host-attr:host | None |
| os-vol-mig-status-attr:migstat | None |
| os-vol-mig-status-attr:name_id | None |
| os-vol-tenant-attr:tenant_id | 3149a10c07bd42569bd5094b83aefdfa |
| os-volume-replication:driver_data | None |
| os-volume-replication:extended_status | None |
| replication_status | disabled |
| size | 1 |
| snapshot_id | None |
| source_volid | None |
| status | creating |
| user_id | 322aff449dac4503b7cab8f38440597e |
| volume_type | vol_type_qos_demo |
+---------------------------------------+--------------------------------------+
After we associate the QoS spec with the volume type, we can use the volume type just as we did in the section called “Creating and Defining Cinder volume Types”. The example below shows how to verify that the QoS policy group has been created on the NetApp storage controller.
qos policy-group show -policy-group *66027b97-11d1-4399-b8c6-031ad8e38da0*
Name Vserver Class Wklds Throughput
---------------- ----------- ------------ ----- ------------
openstack-66027b97-11d1-4399-b8c6-031ad8e38da0
dustins01 user-defined 1 0-100IOPS
The name of the QoS policy group created on the storage controller contains the UUID of the Cinder volume that was created previously. This QoS policy group has been assigned to the file or LUN on the storage controller to ensure an isolated, independent limit is enforced on a per-Cinder-volume basis.
Note
Support for Consistency groups has been deprecated in Block Storage V3 API. Only Block Storage V2 API supports consistency groups. Future releases will involve a migration of existing consistency group operations to use generic volume group operations.
In this section, we will configure a Cinder volume type, associate the volume type with a backend capable of supporting consistency groups, create a Cinder consistency group, create a Cinder volume within the consistency group, take a snapshot of the consistency group, and then finally create a second consistency group from the snapshot of the first consistency group.
$ cinder type-create consistency-group-support
+--------------------------------------+---------------------------+-----------+
| ID | Name | Is_Public |
+--------------------------------------+---------------------------+-----------+
| 313da739-b629-47f6-ba5d-0d5e4ead0635 | consistency-group-support | True |
+--------------------------------------+---------------------------+-----------+
$ cinder type-key consistency-group-support set volume_backend_name=BACKEND_WITH_CG_SUPPORT
$ cinder consisgroup-create consistency-group-support --name cg1
+-------------------+-------------------------------------------+
| Property | Value |
+-------------------+-------------------------------------------+
| availability_zone | nova |
| created_at | 2016-02-29T15:57:11.000000 |
| description | None |
| id | 2cc3d172-af05-421b-babd-01d4cd91078d |
| name | cg1 |
| status | available |
| volume_types | [u'313da739-b629-47f6-ba5d-0d5e4ead0635'] |
+-------------------+-------------------------------------------+
$ cinder create --name vol-in-cg1 --consisgroup-id 2cc3d172-af05-421b-babd-01d4cd91078d --volume-type consistency-group-support 1
+---------------------------------------+-------------------------------------------+
| Property | Value |
+---------------------------------------+-------------------------------------------+
| attachments | [] |
| availability_zone | nova |
| bootable | false |
| consistencygroup_id | 2cc3d172-af05-421b-babd-01d4cd91078d |
| created_at | 2016-02-29T15:59:36.000000 |
| description | None |
| encrypted | False |
| id | 959e5f9f-67b9-4011-bd60-5dad2ee43200 |
| metadata | {} |
| migration_status | None |
| multiattach | False |
| name | vol-in-cg1 |
| os-vol-host-attr:host | openstack1@cmodeiSCSI#vol_21082015_132031 |
| os-vol-mig-status-attr:migstat | None |
| os-vol-mig-status-attr:name_id | None |
| os-vol-tenant-attr:tenant_id | b2b6110ec5c3411089e60e928aafbba6 |
| os-volume-replication:driver_data | None |
| os-volume-replication:extended_status | None |
| replication_status | disabled |
| size | 1 |
| snapshot_id | None |
| source_volid | None |
| status | creating |
| updated_at | 2016-02-29T15:59:37.000000 |
| user_id | 12364c2f57ee4d459ae535af100fdf63 |
| volume_type | consistency-group-support |
+---------------------------------------+-------------------------------------------+
$ cinder cgsnapshot-create 2cc3d172-af05-421b-babd-01d4cd91078d --name snap-of-cg1
+---------------------+--------------------------------------+
| Property | Value |
+---------------------+--------------------------------------+
| consistencygroup_id | 2cc3d172-af05-421b-babd-01d4cd91078d |
| created_at | 2016-02-29T16:01:30.000000 |
| description | None |
| id | cd3770e1-fa59-48a6-ba48-2f3581f2b03b |
| name | snap-of-cg1 |
| status | creating |
+---------------------+--------------------------------------+
$ cinder consisgroup-create-from-src --name cg2 --cgsnapshot cd3770e1-fa59-48a6-ba48-2f3581f2b03b
+----------+--------------------------------------+
| Property | Value |
+----------+--------------------------------------+
| id | f84529af-e639-477e-a6e7-53dd401ab909 |
| name | cg2 |
+----------+--------------------------------------+
To delete a consistency group, first make sure that any snapshots of the consistency group have first been deleted, and that any volumes in the consistency group have been removed via an update command on the consistency group.
$ cinder consisgroup-update cg2 --remove-volumes ddb31a53-6550-410c-ba48-a0a912c8ae95
$ cinder delete ddb31a53-6550-410c-ba48-a0a912c8ae95
Request to delete volume ddb31a53-6550-410c-ba48-a0a912c8ae95 has been accepted.
$ cinder consisgroup-delete cg2
$ cinder cgsnapshot-delete snap-of-cg1
$ cinder consisgroup-update cg1 --remove-volumes 959e5f9f-67b9-4011-bd60-5dad2ee43200
$ cinder delete 959e5f9f-67b9-4011-bd60-5dad2ee43200
Request to delete volume 959e5f9f-67b9-4011-bd60-5dad2ee43200 has been accepted.
$ cinder consisgroup-delete cg1
In this section, we will configure a Cinder volume type, associate the volume type with a backend capable of supporting groups, create a Cinder group type, create a Cinder group, create a Cinder volume within the group, take a snapshot of the group, and then finally create a group from the snapshot of the first group.
Note
Currently only the Block Storage V3 API supports group operations. The
minimum version for group operations supported by the ONTAP drivers is
3.14. The API version can be specified with the following CLI flag
--os-volume-api-version 3.14. Optionally an environment variable can
be set: export OS_VOLUME_API_VERSION=3.14
Note
The Cinder community plans to migrate existing consistency group operations to group operations in an upcoming release. Please review Cinder release notes for upgrade instructions prior to using group operations.
Note
The ONTAP volume drivers support the consistent_group_snapshot_enabled
group type. By default Cinder group snapshots take individual snapshots
of each Cinder volume in the group. To enable consistency group snapshots set
consistent_group_snapshot_enabled="<is> True" in the group type used.
Be aware that only one consistency group snapshot per storage pool (i.e.
flexvol) can be performed at a time. Overlapping consistency group snapshot
operations can fail.
$ cinder type-create volume-support
+--------------------------------------+----------------+-------------+-----------+
| ID | Name | Description | Is_Public |
+--------------------------------------+----------------+-------------+-----------+
| 52c62136-4c87-4ec1-9e29-1132e975eab9 | volume-support | - | True |
+--------------------------------------+----------------+-------------+-----------+
$ cinder type-key volume-support set volume_backend_name=BACKEND_WITH_CG_SUPPORT
$ cinder --os-volume-api-version 3.14 group-type-create group-support
+--------------------------------------+---------------+-------------+
| ID | Name | Description |
+--------------------------------------+---------------+-------------+
| bc910903-35d8-49cd-842e-77c77c1d52f5 | group-support | - |
+--------------------------------------+---------------+-------------+
$ cinder --os-volume-api-version 3.14 group-type-key group-support set consistent_group_snapshot_enabled="<is> True"
$ cinder --os-volume-api-version 3.14 group-create --name group1 group-support volume-support
+-------------------+-------------------------------------------+
| Property | Value |
+-------------------+-------------------------------------------+
| availability_zone | nova |
| created_at | 2017-09-08T22:24:57.000000 |
| description | None |
| group_snapshot_id | None |
| group_type | 5bf45d12-0ea3-4061-b6b9-287965edce41 |
| id | 68ea5b1d-0b09-44ae-ad9f-5e6d9672cc93 |
| name | group1 |
| source_group_id | None |
| status | creating |
| volume_types | [u'0ca68595-7218-4d44-a992-9f6db4b75143'] |
+-------------------+-------------------------------------------+
$ cinder --os-volume-api-version 3.14 create --name vol-in-group1 --group-id 68ea5b1d-0b09-44ae-ad9f-5e6d9672cc93 --volume-type volume-support 1
+--------------------------------+--------------------------------------+
| Property | Value |
+--------------------------------+--------------------------------------+
| attachments | [] |
| availability_zone | nova |
| bootable | false |
| consistencygroup_id | None |
| created_at | 2017-09-08T22:30:11.000000 |
| description | None |
| encrypted | False |
| group_id | 68ea5b1d-0b09-44ae-ad9f-5e6d9672cc93 |
| id | e982211e-1c34-4996-bee4-af30c5661d8a |
| metadata | {} |
| migration_status | None |
| multiattach | False |
| name | vol-in-group1 |
| os-vol-host-attr:host | None |
| os-vol-mig-status-attr:migstat | None |
| os-vol-mig-status-attr:name_id | None |
| os-vol-tenant-attr:tenant_id | a9a7c9d88ad34fa889fd3b63c3d03292 |
| replication_status | None |
| size | 1 |
| snapshot_id | None |
| source_volid | None |
| status | creating |
| updated_at | None |
| user_id | f7d1f04baac34064a238a45dc5a6aa1b |
| volume_type | volume-support |
+--------------------------------+--------------------------------------+
$ cinder --os-volume-api-version 3.14 group-snapshot-create group1 --name group1-snapshot1
+---------------+--------------------------------------+
| Property | Value |
+---------------+--------------------------------------+
| created_at | 2017-09-08T22:32:06.000000 |
| description | None |
| group_id | 68ea5b1d-0b09-44ae-ad9f-5e6d9672cc93 |
| group_type_id | 5bf45d12-0ea3-4061-b6b9-287965edce41 |
| id | 3ac3a4cc-658a-4b1a-96c5-6272756ea60e |
| name | group1-snapshot1 |
| status | creating |
+---------------+--------------------------------------+
$ cinder --os-volume-api-version 3.14 group-create-from-src --group-snapshot group1-snapshot1 --name group2
+----------+--------------------------------------+
| Property | Value |
+----------+--------------------------------------+
| id | 66c4d2a0-13b7-49a2-a144-89fcc4cf3362 |
| name | group2 |
+----------+--------------------------------------+
In this section, we will configure a Cinder volume type, associate
the thin_provisioning_support attribute and then create a thin
provisioned Cinder volume. To check if the driver configuration
supports Thin Provisioning, refer to “Theory of Operation: Over-Subscription and Thin-Provisioning”.
$ cinder type-create thin
$ cinder type-key thin set thin_provisioning_support="<is> True"
$ cinder create --name cinder-vol-a --volume-type thin 5000
In this section, we will create a new volume, take a snapshot from it and revert to that last snapshot.
Note
This command is only available in microversion 3.40 and above.
Note
You can only revert the volume to the last snapshot taken. If you need to revert to an earlier snapshot, you have to delete snapshots until that one is the most recent.
Note
The snapshot being reverted to must have the same size of the volume.
$ cinder create --name cinder-vol-1 --volume-type cmodeNFS 1
+--------------------------------+--------------------------------------+
| Property | Value |
+--------------------------------+--------------------------------------+
| attachments | [] |
| availability_zone | nova |
| bootable | false |
| consistencygroup_id | None |
| created_at | 2018-10-15T11:49:59.000000 |
| description | None |
| encrypted | False |
| id | c4913fc6-1dc9-4380-8372-9d290c23f32e |
| metadata | {} |
| migration_status | None |
| multiattach | False |
| name | cinder-vol-1 |
| os-vol-host-attr:host | None |
| os-vol-mig-status-attr:migstat | None |
| os-vol-mig-status-attr:name_id | None |
| os-vol-tenant-attr:tenant_id | 3810b2bf356f430d9a06019cd9e56cc2 |
| replication_status | None |
| size | 1 |
| snapshot_id | None |
| source_volid | None |
| status | creating |
| updated_at | None |
| user_id | 90d2c8d154594c2eb51929a89474c753 |
| volume_type | cmodeNFS |
+--------------------------------+--------------------------------------+
$ cinder snapshot-create --name cinder-snapshot-1 cinder-vol-1
+-------------+--------------------------------------+
| Property | Value |
+-------------+--------------------------------------+
| created_at | 2018-10-20T11:51:11.943346 |
| description | None |
| id | a2dee3cd-d14a-4920-8a73-17a3a8ca8fdc |
| metadata | {} |
| name | cinder-snapshot-1 |
| size | 1 |
| status | creating |
| updated_at | None |
| volume_id | c4913fc6-1dc9-4380-8372-9d290c23f32e |
+-------------+--------------------------------------+
$ cinder --os-volume-api-version=3.40 revert-to-snapshot a2dee3cd-d14a-4920-8a73-17a3a8ca8fdc
This document is licensed under Apache 2.0 license.