Creating Cloud Disks

Last updated: 2021-09-23 10:20:05

    Overview

    CBS allows you to create a cloud disk and attach it to any CVM in the same availability zone. The cloud disk is identified and used by the CVM through block storage device mapping. Once created, the cloud disk can reach its maximum performance without prefetch.
    You can create different types of CBS cloud disks based on business needs. For more information about CBS disk types, see Cloud Disk Types.

    Prerequisites

    Directions

    1. Log in to the CBS console.

    2. Select a region and click Create.

    3. In the Purchase Data Disk dialog box, configure the following parameters:

      Parameter Description
      Availability Zone Required.
      The availability zone where the created cloud disk resides. It cannot be modified after the cloud disk is created.
      Cloud Disk Type Required.
      Four CBS cloud disk types are available:
      • Premium Cloud Storage
      • SSD
      • Enhanced SSD
      • Tremendous SSD. This type can only be purchased with the Standard Storage Optimized S5se CVM instance.
      Quick Disk Creation Optional. To create a cloud disk using a snapshot, you need to tick Create a cloud disk with a snapshot and select the snapshot you want to use.
      • The capacity of a cloud disk created using a snapshot is equal to that of the snapshot by default. You can adjust the disk capacity.
      • When you create a cloud disk using a snapshot, the disk type is the same as that of the snapshot’s source disk. You can change the disk type.
      Capacity Required.
      CBS provides the following cloud disk capacity and specifications:
      • Premium Cloud Storage: 10 to 32,000 GB
      • SSD: 20 to 32,000 GB
      • Enhanced SSD: 20 to 32,000 GB
      When you create a cloud disk using a snapshot, the disk capacity cannot be smaller than that of the snapshot. If you do not specify this parameter, the disk capacity is equal to that of the snapshot by default.
      Scheduled Snapshot Optional.
      You can associate scheduled snapshot policies when creating a cloud disk to regularly manage your cloud disk snapshots. Currently, Tencent Cloud provides a 50 GB free tier for each region in the Chinese mainland. For more information, see Billing Overview.
      Disk Name Optional.
      A maximum of 128 characters are supported. It must start with a letter, and can be a combination of letters, digits, and special characters (., _, :, -). This parameter can be modified after the cloud disk is created.
      • Creating a single cloud disk: the disk name entered is the name of the cloud disk you create.
      • Batch creating cloud disks: the disk name entered is the prefix of your cloud disk names, in the format of disk name_number.
      Project Required.
      When creating a cloud disk, you can configure the project to which the cloud disk belongs. The default value is DEFAULT PROJECT.
      Tags Optional.
      When creating a cloud disk, you can bind a tag to it. Tags are used for identification, helping you easily categorize and search for cloud resources. For more information, see Tag.
      Billing Mode Required
      CBS is pay-as-you-go.
      Quantity Optional.
      The default value is 1, meaning only one cloud disk is created. Currently, up to 50 cloud disks can be created at one time.
      Period The pay-as-you-go billing mode does not involve this parameter.
    4. Click OK.

      • Billing Mode is Pay as you go, the creation is completed.
    5. You can view the cloud disk(s) you created in the Cloud Block Storage list page. The new elastic cloud disk is in the To be attached status. To attach it to a CVM instance in the same availability zone, see Attaching Cloud Disks.