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28 CONSTELLATION ES.2 SERIAL ATA PRODUCT MANUAL, REV. H
5.11 ATA SECURITY ERASE UNIT COMMAND ON SED SATA DRIVES
The ATA SECURITY ERASE UNIT command shall support both the Normal and Enhanced erase modes with the following
modifications/additions:
• Normal Erase: Normal erase shall be accomplished by changing the media encryption key for the drive followed by an
overwrite operation that repeatedly writes a single sector containing random data to the entire drive. The write operation
shall bypass the media encryption. On reading back the overwritten sectors, the host will receive a decrypted version,
using the new encryption key, of the random data sector (the returned data will not match what was written).
• Enhanced Erase: Enhanced erase shall be accomplished by changing the media encryption key for the drive.
5.12 SANITIZE DEVICE - CRYPTO SCRAMBLE EXT
This command cryptographically erases all user data on the drive by destroying the current data encryption key and replacing it with a
new data encryption key randomly generated by the drive. Sanitize Device is a command field B4h and Feature field 0011h (CRYPTO
SCRAMBLE EXT).
The drive shall support the Sanitize Feature Set as defined in ANSI/INCITS ACS-2 with the exceptions and/or modifications described in
this section.
The drive shall not support the OVERWRITE EXT and BLOCK ERASE EXT sub-commands.
Support of the SANITIZE FREEZE LOCK EXT command shall be determined on a customer-specific basis. OEM drives shall support
the command.