Updated on 2023-08-11 GMT+08:00

EVS.SharedVolume

Element Description

The EVS.SharedVolume element can be used to deploy shared EVS disks at the IaaS layer. Shared EVS disks are block storage devices that can be attached to multiple ECSs and support concurrent read/write operations. These disks feature multiple attachments, high-concurrency, high-performance, and high-reliability.

Element Properties

Table 1 Property Description

Property

Required

Descripiton

availabilityZone

Yes

AZ

Type: HuaweiCloud.ECS.AvailabilityZone.Name

Value Constraint: The value must be selected as required. If the value of backupId is not empty, the AZ must be the same as the AZ where the backup is located.

Suggestion: 1. Use the get_input function to import this field. The value can be automatically selected on the AOS page. 2. For details about the AZ of each region.

description

No

EVS disk description

Type: string

Value Description: Supports customization.

volumeType

Yes

EVS disk type

Type: HuaweiCloud.EVS.Volume.Type.Name

Value Description: Supports SSD, SAS, and SATA. During EVS disk creation from a snapshot, the value of the volumeType field must be the same as that of the source EVS disk.

Suggestion: Set the value based on specifications and requirements.For more information on different disk types, see https://support.huaweicloud.com/eu/productdesc-evs/en-us_topic_0014580744.html.

name

No

EVS disk name

Type: string

Value Description: Supports customization, for example, share.

Value Constraint: The following requirement must be met: {"regex":"^[a-zA-Z][0-9a-zA-Z-_]*$","min_length":1,"max_length":250}.

Suggestion: Customize the value.

passthrough

No

equipment type about the created EVS disk

Type: string

Value Description: false: indicates that EVS disks are VBD. true: indicates that disks are SCSI

Value Constraint: The value must be true or false

Suggestion: For details, see the EVS documentation at https://support.huaweicloud.com/eu/api-evs/evs_04_2013.html.

backupId

No

EVS disk backup ID

Type: string

Value Description: Indicates the existing backup ID of an EVS disk. The use of both "Snapshotid" and "backupid" fields is not supported.

Value Constraint: The value must satisfy the UUID generation rule.

size

Yes

EVS disk size

Type: integer

Value Description: Indicates the EVS disk size (unit: GB).

Default: 40

Suggestion: Set the value based on requirements.When you try to create an EVS disk from a backup disk, image, or snapshot, the size of the EVS disk cannot be smaller than that of the backup disk, image, or snapshot.

snapshotId

No

Snapshot ID of the EVS disk

Type: string

Value Description: Indicates the existing snapshot ID of an EVS disk. The use of both "Snapshotid" and "backupid" fields is not supported.

Value Constraint: The value must satisfy the UUID generation rule.

Relationships Between Elements

None.

Return Value

Property

Type

Description

volume

Array

EVS disk information list

refName

string

EVS disk name

volumeIDs

string

Set of EVS disk IDs, which are separated by commas (,)

Blueprint Example

tosca_definitions_version: huaweicloud_tosca_version_1_0 
 inputs: 
   availabilityZone: 
     description: AZ 
   size: 
     description: EVS disk size 
     default: 10 
   volumeType: 
     description: EVS disk type
     default: SATA 
   name: 
     description: EVS disk name 
     default: my-evs 
 node_templates: 
   my-evs: 
     type: HuaweiCloud.EVS.SharedVolume 
     properties: 
       size: 
         get_input: size 
       availabilityZone: 
         get_input: availabilityZone 
       volumeType: 
         get_input: volumeType 
       name: 
         get_input: name 
 outputs: 
   evs-id: 
     description: ECS ID 
     value: 
       get_attribute: 
         - my-evs 
         - volumeIDs