Before you format, ensure that there is no data in the data disk or that important data has been backed up. After formatting, all data in the data disk will be cleared.
To avoid service exceptions, ensure that the Cloud Virtual Machine has stopped external services before you format.

Directions

Select the appropriate operation guide according to the disk capacity:

If the disk capacity is less than 2TB, Initialize Cloud Block Storage (Linux).
If the disk capacity is greater than or equal to 2TB, Initialize Cloud Block Storage (Linux).