7K200 SATA OEM Specification

14.31Security Unlock (F2h)

Command Block Output Registers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Command Block Input Registers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Register

 

 

 

 

7

 

 

6

 

 

 

5

 

4

 

 

 

3

 

2

 

 

 

1

 

0

 

 

Register

 

 

 

 

7

 

6

 

 

 

 

5

 

 

4

3

2

 

1

 

0

Data

 

 

 

 

-

 

-

 

-

 

-

 

-

 

-

 

 

-

 

-

 

 

Data

 

 

 

 

 

-

 

-

 

-

 

-

-

-

 

-

 

-

Feature

 

 

 

-

 

-

 

-

 

-

 

-

 

-

 

 

-

 

-

 

 

Error

 

 

 

 

 

 

 

 

 

 

...See Below...

 

 

 

Sector Count

 

 

 

-

 

-

 

-

 

-

 

-

 

-

 

 

-

 

-

 

 

Sector Count

 

 

 

 

-

 

-

 

 

-

 

 

-

 

 

-

-

 

-

 

-

LBA Low

 

 

 

-

 

-

 

-

 

-

 

-

 

-

 

 

-

 

-

 

 

LBA Low

 

 

 

 

-

 

-

 

 

-

 

-

 

-

-

 

-

 

-

LBA Mid

 

 

 

 

-

 

 

-

 

 

 

-

 

-

 

 

 

-

 

-

 

 

 

-

 

-

 

 

LBA Mid

 

 

 

 

-

 

-

 

 

 

 

-

 

 

-

 

 

-

-

 

-

 

-

LBA High

 

 

 

 

-

 

 

-

 

 

 

-

 

-

 

 

 

-

 

-

 

 

 

-

 

-

 

 

LBA High

 

 

 

 

-

 

-

 

 

 

 

-

 

 

-

 

 

-

-

 

-

 

-

Device

 

 

 

 

 

-

 

 

-

 

 

 

-

 

-

 

 

 

-

 

-

 

 

 

-

 

-

 

 

Device

 

 

 

 

 

-

 

-

 

 

 

 

-

 

 

-

 

-

-

 

-

 

-

Command

 

 

 

1

 

1

 

1

 

1

 

0

 

0

 

 

1

 

0

 

 

Status

 

 

 

 

 

 

 

 

 

 

...See Below...

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Error Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Status Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

6

5

4

 

3

 

 

 

 

2

 

 

1

 

 

 

0

 

 

 

 

7

 

6

5

 

4

3

 

 

 

2

 

 

 

1

 

 

0

 

CRC

 

UNC

0

IDN

 

0

 

 

 

 

ABT

 

T0N

 

 

 

 

AM

 

 

 

BSY

 

RDY

DF

 

DSC

DRQ

 

COR

 

 

IDX

 

ERR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

V

0

0

 

0

 

 

 

 

 

 

 

V

 

0

 

 

 

0

 

 

 

 

0

 

V

0

 

-

-

 

 

 

0

 

 

 

0

 

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 100 Security Unlock Command (F2h)

This command unlocks the password and causes the device to enter device unlock mode. If COMRESET with Software Setting Preservation disable or power on reset is done without executing the Security Disable Password command after this command is completed, the device will be in device lock mode. The password has not been changed yet.

The Security Unlock command requests to transfer a single sector of data from the host including information specified in the following table.

If the Identifier bit is set to master and the file is in high security mode then the password supplied will be compared with the stored master password. If the file is in maximum security mode then the security unlock will be rejected.

If the Identifier bit is set to user, then the file compares the supplied password with the stored user password.

If the password compare fails then the device returns an abort error to the host and decrements the unlock attempt counter. This counter is initially set to 5 and is decremented for each password mismatch. When this counter reaches zero then all password protected commands are rejected until a power off.

Word

Description

 

00

Control word

 

 

bit 0

: Identifier (1-Master, 0-User)

 

 

 

 

 

 

bit 1-15

: Reserved

 

 

 

 

 

01-16

Password

(32 bytes)

17-255

Reserved

 

Table 101 Security

Unlock Information

 

Identifier

Zero indicates that device regards Password as User Password. One indicates that device

 

regards Password as Master Password.

The user can detect if the attempt to unlock the device has failed due to a mismatched password as this is the only reason that an abort error will be returned by the file AFTER the password information has been sent to the device. If an abort error is returned by the device BEFORE the password data has been sent to the file then another problem exists.

130/173

Page 129 Page 131
Page 130
Image 130
Hitachi HDS723020BLA642 manual Security Unlock F2h, Security Unlock Command F2h, Security Unlock Information
Page 129 Page 131

HDS723020BLA642 specifications

The Hitachi HDS723020BLA642 is a high-performance hard disk drive that exemplifies the balance between reliability and advanced technology, making it an excellent choice for a range of applications, from desktop computers to enterprise storage solutions. This 2TB SATA hard drive is designed to meet the growing data storage needs of users who demand both speed and efficiency.

One of the key features of the HDS723020BLA642 is its impressive rotational speed of 7200 RPM. This speed facilitates faster data access and improved overall performance, significantly enhancing the user experience during data-intensive operations such as gaming, video editing, and large file transfers. Coupled with a SATA III interface, this drive facilitates data transfer rates of up to 6 Gb/s, providing an efficient conduit for moving data quickly between the hard drive and the motherboard.

The drive comes equipped with a large 64 MB cache, which plays a crucial role in buffering read and write operations. This substantial amount of cache memory allows the drive to temporarily store frequently accessed data, leading to reduced latency and enabling smoother multitasking capabilities. Users will benefit from faster load times and reduced wait periods when working with large files.

Reliability is another defining characteristic of the HDS723020BLA642. Hitachi, now a part of Western Digital, has a longstanding reputation for producing durable hard drives. This model incorporates advanced technologies, such as the Fluid Dynamic Bearing (FDB) for quieter operation and better longevity. The drive also features an enhanced error recovery system that minimizes the risk of data loss, making it a suitable option for both personal and professional use.

In terms of power efficiency, the HDS723020BLA642 is designed to consume less power during operation compared to older hard drive models. This efficiency not only helps in reducing operational costs but also contributes to a longer lifespan for the drive itself.

Overall, the Hitachi HDS723020BLA642 hard drive combines speed, reliability, and efficiency into a compact package, making it an ideal choice for users needing a substantial amount of storage without compromising on performance. Whether for upgrading an existing system or building a new one, this drive offers a blend of technology and durability that caters to modern storage demands.
Top Page Image Contents