Hello, friend!
If a disk-intensive or ultra-high I/O ECS flavor is created and safeFormat is set to True, the disk will be formatted safely when you delete the ECS created using this flavor and release the disk. If safeFormat is set to False, the disk is formatted rapidly. This section describes the differences between secure formatting and rapid formatting, and how to estimate the time required for secure formatting.
Secure Formatting and Rapid Formatting
Table 1 Differences between secure formatting and rapid formatting
Category | Rapid Formatting | Safe Formatting |
|---|
| Whether to rewrite the disk sector | If no, delete only the files on the drive where the disk is located and do not rewrite the disk sector. | If yes, delete the files on the drive where the disk resides and rewrite the disk sector. |
Data restoration | If only surface data is deleted, data can be restored using some methods. Therefore, the security is not high. | Data is permanently deleted and disks are detected. After the deletion, data is difficult to restore, ensuring high security. |
Bad sectors | If a formatted disk has bad sectors, no message is displayed. | The disk is detected during disk formatting. If bad sectors exist on the disk, a message is displayed. |
Duration | Relatively short | Relatively long |
Therefore, you can select a formatting method based on the importance of the data stored on the disk. If the disk stores confidential data, you are advised to select the secure formatting when releasing the disk.
If you are more concerned about taking less time to release the disk, you can choose to format it quickly.
Hope this helps!
