Seagate ST9100826A Manual Do Utilizador

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Momentus 5400 FDE Product Manual, Rev. C

The Momentus 5400 FDE contains drive trust technology providing Full-Disc Encryption (FDE) using proven 
Triple DES (TDES) data encryption and decryption.

• Automatically encrypts (and decrypts) all data on the drive

• Operations are performed with no measured performance loss

• All user data is encrypted on write operations and decrypted on read operations

• Drive-level protection of data

• Drives that are stolen, taken out of service, or re-purposed remain fully protected

• Near instantaneous disposal and re-purposing of the drive (ensures that data from previous user is not 

accessible by the new drive owner)

• Able to be deployed within a trusted computing environment

The drive encrypts every write operation and decrypts every read operation without user intervention. The 
encryption and decryption is done on the drive itself, so there is a near-zero performance impact when the 
drive writes and reads data. The performance-optimized encryption and decryption engine performs at the ATA 
interface speed.

The purpose of full-disc encryption is to protect the data stored on the drive in the event that the host system is 
lost or stolen. This assures the system owner that if their system is lost or stolen, their data will not be accessi-
ble without the correct credentials.

Having the encryption/decryption on the drive also provides the highest level of security for data because all 
data, including the boot sector bytes, operating system, temp and even the swap files are encrypted at the 
drive level.

The Momentus 5400 FDE contains two security interfaces:

1.

The ATA Security Interface

This interface is provided for compatibility with the existing ATA Security Command Set. The ATA Security 
Interface is active upon shipment and ready for use. 

2.

The Drive Trust Security Interface

This interface is provided to enable a robust enterprise-level security and management policy. Use of the 
Drive Trust Security Interface requires additional software to manage the Drive Trust interface. Please con-
tact your system or software provider for more details.

Upon shipment from the Seagate factory, the ATA Security Interface is enabled and functioning. The following 
is the detailed state of the drive upon shipment.

• Full Disc Encryption (FDE) is active and functioning. All user data is encrypted on write and decrypted on 

read.

• The user interface to the drive is active and all read and write commands are allowed.

• The ATA user password is null (no value).

• The ATA master password is set to the Security ID (SID).

• ATA Security is set to the unlocked state. No password is required to access the drive.