Detaching a Disk from an ECS¶
Function¶
This API is used to detach a disk from an ECS.
Constraints¶
The system disk, the device name of which is /dev/sda, and user disks can be detached from an ECS only when the ECS is stopped. There are no requirements on OTC Tools.
When an ECS is in the active state, pay attention to the following constraints:
Only data disks, the device name of which is not /dev/sda, can be detached from an ECS.
Make sure that OTC Tools have been installed and enabled on the ECS. Otherwise, the uninstallation will fail.
For a Linux ECS, you need to log in to the ECS and run the umount command to disassociate the target disk from the file system. In addition, you need to ensure that no data is being written into or being read from the disk. Otherwise, the detachment will fail.
For a Windows ECS, you need to ensure that no data is being written into or being read from the disk when a disk is to be detached from the running ECS. Otherwise, data will be lost.
OSs supporting EVS disk detachment from a running ECS include two parts:
For the first part, see External Image File Formats and Supported OSs.
Table 1 lists the second part of supported OSs.
Table 1 OSs supporting EVS disk detachment from a running ECS¶ OS
Version
CentOS
7.3 64bit
7.2 64bit
6.8 64bit
6.7 64bit
Debian
8.6.0 64bit
8.5.0 64bit
Fedora
25 64bit
24 64bit
SUSE
SUSE Linux Enterprise Server 12 SP2 64bit
SUSE Linux Enterprise Server 12 SP1 64bit
SUSE Linux Enterprise Server 11 SP4 64bit
SUSE Linux Enterprise Server 12 64bit
OpenSUSE
42.2 64bit
42.1 64bit
Oracle Linux Server release
7.3 64bit
7.2 64bit
6.8 64bit
6.7 64bit
Ubuntu Server
16.04 64bit
14.04 64bit
14.04.4 64bit
Windows (SCSI EVS disks cannot be detached from a running ECS.)
Windows Server 2008 R2 Enterprise 64bit
Windows Server 2012 R2 Standard 64bit
Windows Server 2016 R2 Standard 64bit
Red Hat Linux Enterprise
7.3 64bit
6.8 64bit
URI¶
DELETE /v2.1/{project_id}/servers/{server_id}/os-volume_attachments/{volume_id}
DELETE /v2/{project_id}/servers/{server_id}/os-volume_attachments/{volume_id}
Table 2 describes the parameters in the URI.
Parameter | Mandatory | Description |
|---|---|---|
project_id | Yes | Specifies the project ID. |
server_id | Yes | Specifies the ECS ID. |
volume_id | Yes | Specifies the volume ID. |
Usage: DELETE /v2/{project_id}/servers/{server_id}/os-volume_attachments/{volume_id}
Request¶
None
Response¶
None
Example Request¶
Detach the disk whose ID is 54667652-3029-4af8-9222-2d53066fd61c from a specified ECS.
DELETE https://{endpoint}/v2/6fbe9263116a4b68818cf1edce16bc4f/servers/ab258e25-e351-47c7-b6e3-0749c5d9ed6a/os-volume_attachments/54667652-3029-4af8-9222-2d53066fd61c
DELETE https://{endpoint}/v2.1/6fbe9263116a4b68818cf1edce16bc4f/servers/ab258e25-e351-47c7-b6e3-0749c5d9ed6a/os-volume_attachments/54667652-3029-4af8-9222-2d53066fd61c
Example Response¶
None