razlika med diski?

ISE: drive transparently encrypts all data with a built-in factory key. User cannot access or modify or disable this. When you Instant Secure Erase, the drive simply deletes said key from its internal memory and generates a new one, rendering data inaccessible.

SE: drive has an onboard, cryptographically secure pseudorandom number generator. When you Secure Erase, drive uses this to overwrite entire surface of the disk, including user-inaccessible areas like remap (spare sectors), etc. Expect hours.