Before you use the disk encryption function, KMS access rights need to be granted to EVS. If you have the Security Administrator rights, grant the KMS access rights to EVS directly. If you do not have this permission, contact a user with the security administrator rights to grant the KMS access rights to EVS, then repeat the preceding operations.
For details about how to create an encrypted disk, see Creating an EVS Disk.
Before you detach an EVS disk encrypted by a CMK, check whether the CMK is disabled or scheduled for deletion. If the CMK is unavailable, the disk can still be used, but normal read/write operations are not guaranteed permanently. If the disk is detached and then re-attached, re-attaching this disk will fail. In this case, do not detach the disk and restore the CMK status first.
The restoration method varies depending on the current CMK status. For details, see EVS Disk Encryption.
If the CMK is available, the disk can be detached and re-attached, and data on the disk will not be lost.
For details about how to detach an encrypted disk, see Detaching a Data Disk.