Attaching an additional disk to an instance¶
The SIM-Cloud service enables you to add a separate, additional disk to an existing instance, should this be necessary. This can be done either via the SIM-Cloud web interface using ‘Connect disk’ and ‘Remove disk’ from the drop-down instances menu or via the command line interface using the openstack utility.
More detail on the procedure using the “openstack” utility.
- Attach your volume to a server, specifying the server ID and the volume ID:
$ openstack server add volume 84c6e57d-a6b1-44b6-81eb-fcb36afd31b5 \
573e024d-5235-49ce-8332-be1576d323f8 --device /dev/vdb
- Show information for your volume:
$ openstack volume show 573e024d-5235-49ce-8332-be1576d323f8
The output shows that the volume is attached to the server with ID 84c6e57d-a6b1-44b6-81eb-fcb36afd31b5, is in the nova availability zone, and is bootable.
+------------------------------+-----------------------------------------------+
| Field | Value |
+------------------------------+-----------------------------------------------+
| attachments | [{u'device': u'/dev/vdb', |
| | u'server_id': u'84c6e57d-a |
| | u'id': u'573e024d-... |
| | u'volume_id': u'573e024d... |
| availability_zone | nova |
| bootable | true |
| consistencygroup_id | None |
| created_at | 2016-10-13T06:08:07.000000 |
| description | None |
| encrypted | False |
| id | 573e024d-5235-49ce-8332-be1576d323f8 |
| multiattach | False |
| name | my-new-volume |
| os-vol-tenant-attr:tenant_id | 7ef070d3fee24bdfae054c17ad742e28 |
| properties | |
| replication_status | disabled |
| size | 8 |
| snapshot_id | None |
| source_volid | None |
| status | in-use |
| type | lvmdriver-1 |
| updated_at | 2016-10-13T06:08:11.000000 |
| user_id | 33fdc37314914796883706b33e587d51 |
| volume_image_metadata |{u'kernel_id': u'df430cc2..., |
| | u'image_id': u'397e713c..., |
| | u'ramdisk_id': u'3cf852bd..., |
| |u'image_name': u'cirros-0.3.5-x86_64-uec'} |
+------------------------------+-----------------------------------------------+