DocsICP FilingConsole
官方文档
首页

Create a data disk

更新时间：
复制 MD 格式
产品详情
我的收藏

You can create a subscription or pay-as-you-go data disk and attach it to an ECS instance to increase its storage capacity.

Limitations

  • Limitations vary depending on the cloud disk's billing method.

    Billing method

    Limitations

    Pay-as-you-go cloud disk

    To activate pay-as-you-go ECS resources, your Alibaba Cloud account balance, including cash and coupons, must be at least CNY 100.00. For more information about the pay-as-you-go billing method, see Pay-as-you-go.

    Subscription cloud disk

    • You must attach a subscription cloud disk to a subscription instance during creation.

    • Its expiration date matches the attached instance, and it is released with the instance. To release only the cloud disk, convert it to a pay-as-you-go cloud disk before detaching and releasing it.

  • You cannot merge block storage devices, which are independent units after creation. Plan the required number and capacity of your block storage devices in advance.

  • A system disk can only be created with an instance.

Procedure

Note

You can create a cloud disk separately on the cloud disk purchase page, or on the instance details page by clicking Create Disk on the Block Storage tab. You can also create a cloud disk along with an instance on the instance purchase page by clicking Add Data Disk in the Data Disk section when you create the instance. This topic uses the cloud disk purchase page as an example.

  1. Go to ECS console - Block Storage.

  2. Click Create Disk.

  3. On the Create Cloud Disk page, configure the parameters for the cloud disk.

    Parameter

    Description

    Attach

    Specifies whether to attach the new cloud disk to an instance immediately after creation.

    • Not Attach: Creates a cloud disk without attaching it to an ECS instance.

      If you select this option, you can create only pay-as-you-go cloud disks. A cloud disk must be in the same zone as the instance it will be attached to, except for Regional ESSDs. Therefore, select the Region and Zone carefully.

    • Attach to ECS Instance: Creates a cloud disk and attaches it to a specified ECS instance in the same zone. This zone restriction does not apply to Regional ESSDs, as they can be attached to any supported instance within their region. For more information, see Limitations.

      If you select this option, you must select the destination region and ECS instance.

    Billing Method

    Specifies the billing method for the cloud disk.

    • Pay-as-you-go: You can attach a pay-as-you-go cloud disk to either a subscription or a pay-as-you-go ECS instance.

    • Subscription: You must attach a subscription cloud disk to a subscription ECS instance.

    Dedicated Block Storage Clusters

    Specifies whether to add the disk to a Dedicated Block Storage Cluster by selecting Enable Dedicated Block Storage Cluster.

    Cloud disks in a Dedicated Block Storage Cluster use physically isolated resources for your exclusive use. For more information, see Dedicated Block Storage Cluster.

    Cloud Disk

    Select the cloud disk category and set its capacity.

    • Performance: This parameter is available only for ESSDs. You can select a performance level based on the ESSD capacity. Different performance levels provide different I/O performance. For more information, see ESSDs.

    • Create from Snapshot: Creates a cloud disk using the data from a selected snapshot. For more information, see Create a data disk from a snapshot.

    • Multi-attach: This feature, available for ESSDs, allows a single disk to be attached to multiple instances in the same zone. For more information, see Enable the multi-attach feature.

    • Encrypt: When enabled, this feature automatically encrypts data on the cloud disk. For more information, see Encrypted disks.

    • Provisioned Performance Fee and Enable Burst: For an ESSD AutoPL disk, you can configure its provisioned IOPS and burst IOPS. For more information, see ESSD AutoPL disks.

    • Release Settings: When you select Attach to ECS Instance and the billing method for the cloud disk is Pay-as-you-go, you can configure whether the cloud disk and automatic snapshots are released with the instance.

  4. Review the configuration and fees, and then follow the on-screen instructions to complete the purchase.

    After creation, you are redirected to the Disks page, where you can view the new disk. The disk must be initialized on the ECS instance before it can be used.

  5. Next steps:

    Important

    After creating a cloud disk, you must perform the necessary attachment and initialization steps before it can be used. The required steps depend on the creation scenario.

    Scenario

    Next steps

    You selected Attach to ECS Instance when you created the cloud disk.

    You must initialize the data disk. The required steps depend on the operating system of the instance:

    You selected Not Attach when you created the cloud disk.

    You must attach and then initialize the data disk:

    Step 1: Attach a data disk.

    Step 2: Initialize the data disk.
Previous：Create data diskNext：Create a data disk from a snapshot