Create disks in a dedicated block storage cluster

Background

Note

Dedicated Block Storage Cluster is available in the following regions: China (Hangzhou), China (Shanghai), China (Beijing), China (Zhangjiakou), China (Ulanqab), China (Shenzhen), China (Heyuan), Indonesia (Jakarta), Germany (Frankfurt), and China South 1 Finance.

Disks in dedicated block storage clusters are reserved for your exclusive use and physically isolated from public disks.

Available disk categories depend on the cluster type: PL0 ESSDs for basic clusters, PL1 ESSDs for performance clusters.
System disks and data disks are created differently:
- Create a system disk in a dedicated block storage cluster
- Create a data disk in a dedicated block storage cluster

Create a system disk in a dedicated block storage cluster

To create the system disk of an ECS instance in a dedicated block storage cluster, enable Dedicated Block Storage Cluster when you create the instance.

Go to ECS console - Instances.
In the top navigation bar, select a region.

The instance must be in the same region as the dedicated block storage cluster.
Click Create Instance.
Enable the Dedicated Block Storage Cluster service.
Follow the steps in Create an instance with Custom Launch with the following parameter settings:
- Billing Method: Select Pay-as-you-go.
  
  Important
  Only pay-as-you-go ECS instances support Dedicated Block Storage Cluster.
- Region and Network and Zone: Select the region and zone of the dedicated block storage cluster.
- Dedicated Block Storage Clusters: Select Enable Dedicated Block Storage Cluster and select the target cluster.
The system disk is created in the selected dedicated block storage cluster along with the instance.

Create a data disk in a dedicated block storage cluster

Create a data disk in a dedicated block storage cluster using one of the following methods:

Enable Dedicated Block Storage Cluster when you create an instance

If you enable Dedicated Block Storage Cluster when you create an instance, both the system disk and data disks are created in the cluster.

Go to the Dedicated Block Storage Cluster page.
1. Log on to the Elastic Block Storage console.
2. In the navigation pane, choose Enterprise-level Features > Dedicated Block Storage Clusters.
In the upper-left corner of the page, select a region and resource group.
Find the dedicated block storage cluster that you want to manage and click Create Disk in the Actions column.

On the disk buy page, configure the disk parameters.

Disk parameters:

Parameter	Description
Attach	Specify whether to attach the disks to ECS instances. Not Attach: Creates disks without attaching them to an ECS instance. Only pay-as-you-go disks can be created. The disks and the target ECS instance must be in the same zone. Choose Region and Zone carefully. Attach to ECS Instance: Creates disks and attaches them to a specified ECS instance. If you select Attach to ECS Instance, select a destination region and ECS instance in the ECS Instance field.
Billing Method	Pay-as-you-go is selected by default.
Dedicated Block Storage Cluster	Enabled by default. If not enabled, select Enable Dedicated Block Storage Cluster. If multiple clusters exist in the selected region and zone, select the target cluster.
Storage	PL0 ESSDs for basic clusters, PL1 ESSDs for performance clusters.
Quantity	The number of disks to create. Note Each ECS instance has a data disk attachment limit. See Limits. Total capacity (capacity per disk x quantity) cannot exceed your quota. Available quota is shown on the buy page.
Release	Specify whether to delete automatic snapshots when the disks are released, or release the disks with the associated instance. Available only when Attach is set to Attach to ECS Instance and Billing Method is Pay-as-you-go.
Terms of Service	Read and select ECS Service Terms.
Others (Optional)	Specify Disk Name, Description, Tag, and Resource Group for easy management.

Click Preview. Verify the disk information in the Preview message, then click Create.

Important
Disks created directly in a dedicated block storage cluster are not charged.

After the disk is created, view its details in the dedicated block storage cluster. See Create a dedicated block storage cluster.
(Conditional) If you set Attach to Not Attach, attach the disks to an ECS instance in the same zone and initialize them before use.
1. Attach a data disk to the ECS instance.
2. Log on to the ECS instance and initialize a data disk.