Changing the EVS Disk Type (OBT)
Scenarios
If the performance of an existing disk no longer meets your service requirements, you can change the disk type to improve the disk performance.
This function is in the OBT. Submit a ticket to apply for the OBT.
Notes and Constraints
Phase |
Description |
---|---|
Before the change |
|
During the change |
|
After the change |
In rare cases, the disk type may fail to be changed due to a backend issue. If this happens, try again later. |
The following table shows the supported changes between disk types.
Source Disk Type |
Description |
---|---|
General Purpose SSD V2 |
Can be assigned with a different IOPS or throughput or both. |
Extreme SSD |
Can be changed to Ultra-high I/O or General Purpose SSD. |
Ultra-high I/O |
Can be changed to Extreme SSD or General Purpose SSD. |
General Purpose SSD |
Can be changed to Extreme SSD or Ultra-high I/O. |
High I/O |
Can be changed to Extreme SSD, Ultra-high I/O, or General Purpose SSD. |
Common I/O (previous generation product) |
Can be changed to Extreme SSD, Ultra-high I/O, General Purpose SSD, or High I/O. |
Impact on the System
Read and write operations on the disk are not affected.
Procedure
- Log in to the management console.
- Click in the upper left corner and choose Storage > Elastic Volume Service.
The disk list page is displayed.
- In the disk list, locate the target disk, click More in the Operation column, and choose Modify Specifications.
The Modify Specifications page is displayed.
- Select a disk type from the drop-down list.
To change to the General Purpose SSD V2 type, you also need to specify the disk IOPS and throughput.
The system shows you the new price based on your selection.
- Click Submit.
The disk list is displayed, and the disk status is Changing disk type, indicating that the disk type is being changed. After the disk type changes to the target type, the operation is successful.
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