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Creating a Disk Domain
Storage systems provide storage space based on disk domains. When creating a disk domain, specify the disk type and quantity.
Context
- You are advised to use different disk domains to create storage pools for the block storage service and file storage service.
- To prevent data loss or performance deterioration caused by a member disk failure, a storage system uses hot spare space to take over data from the failed member disk. For details about how to plan hot spare policies for a disk domain, see "Planning Disk Domains".
Procedure
- Choose
Provisioning >
Disk Domain.
- Click Create.
The Create Disk Domain dialog box is displayed.
- Specify Name and Description for the disk domain.
The descriptive information, such as the function and properties of the disk domain, helps identify the disk domain.
- Select the disks that comprise the disk domain. There are three ways to select the disks:
- Select All available disks.
You only need to configure the hot spare policy for the storage tier.
- Select Specify disk type.
- Select the storage tier according to the disk type.
- Configure the number of disks for each storage tier.
- Configure the hot spare policy for each storage tier.
- Select Manually select.
- Click Select.
- In the Select Disk dialog box, select the disks you need and click
.
- Click OK to finish selecting disks.
- Configure the hot spare policy for each storage tier.
- Select All available disks.
- Click OK.
A message is displayed, indicating that the operation succeeded.
- Click OK.
Provisioning > 
Disk Domain.
.
