4.3.1Identify Device command

The Identify Device command (command code ECH) transfers information about the drive to the host following power up. The data is organized as a single 512-byte block of data, whose contents are shown in Table 7 on page 25. All reserved bits or words should be set to zero. Parameters listed with an “x” are drive-specific or vary with the state of the drive. See Section 2.0 on page 3 for default parameter settings.

The following commands contain drive-specific features that may not be included in the Serial ATA specifica- tion.

Word

Description

Value

 

 

 

 

Configuration information:

 

 

• Bit 15: 0 = ATA; 1 = ATAPI

0C5AH

0

• Bit 7: removable media

• Bit 6: removable controller

 

 

• Bit 0: reserved

 

1

Number of logical cylinders

16,383

 

 

 

2

ATA-reserved

0000H

3

Number of logical heads

16

 

 

 

4

Retired

0000H

5

Retired

0000H

6

Number of logical sectors per logical track: 63

003FH

7–9

Retired

0000H

10–19

Serial number: (20 ASCII characters, 0000H = none)

ASCII

20

Retired

0000H

21

Retired

0400H

22

Obsolete

0000H

23–26

Firmware revision (8 ASCII character string, padded with blanks to end of

x.xx

string)

 

 

27–46

Drive model number: (40 ASCII characters, padded with blanks to end of

 

string)

 

 

 

47

(Bits 7–0) Maximum sectors per interrupt on Read multiple and Write mul-

8010H

tiple (16)

48

Reserved

0000H

49

Standard Standby timer, IORDY supported and may be disabled

2F00H

50

ATA-reserved

0000H

51

PIO data-transfer cycle timing mode

0200H

52

Retired

0200H

53

Words 54–58, 64–70 and 88 are valid

0007H

54

Number of current logical cylinders

xxxxH

55

Number of current logical heads

xxxxH

56

Number of current logical sectors per logical track

xxxxH

57–58

Current capacity in sectors

xxxxH

59

Number of sectors transferred during a Read Multiple or Write Multiple

xxxxH

command

Pipeline HD Series SATA Product Manual, Rev. C

27

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Seagate ST3500422CS, ST3320310CS, ST3160310CS, ST3320410CS, ST3500321CS manual Identify Device command, Word Description Value
Page 32 Page 34

ST3320310CS, ST3500321CS, ST3320410CS, ST3160310CS, ST3500422CS specifications

Seagate has long been recognized as a leader in data storage solutions, and their range of hard drives continues to reflect innovation and reliability. Among the notable SATA drives are the Seagate ST3500422CS, ST3160310CS, ST3320410CS, ST3500321CS, and ST3320310CS models, all designed for various consumer and enterprise applications.

The ST3500422CS operates at a capacity of 500GB, combining high performance with energy efficiency. With a spindle speed of 7200 RPM and a 32MB cache, it ensures rapid data access and transfer rates, making it suitable for multimedia storage and gaming applications. This drive incorporates Seagate’s Instant Secure Erase technology, which allows users to securely wipe their data quickly, ensuring privacy and data protection.

Next, the ST3160310CS model offers a storage capacity of 160GB, ideal for smaller applications requiring faster access times. Also spinning at 7200 RPM, it features a similar 8MB cache, ensuring good performance for everyday computing needs. Its compact design makes it suitable for both desktop systems and where space is at a premium.

The ST3320410CS is designed for larger capacity requirements, providing up to 320GB of storage space. This drive features enhanced data integrity with a 16MB cache and a consistent performance level that makes it suitable for both personal computing and lightweight server applications. Its Balancing Act technology optimizes the drive's performance across multiple workloads, extending its lifespan.

The ST3500321CS provides users with 500GB of storage, similar to the ST3500422CS but with a focus on data reliability. Featuring advanced error correction technologies, it diminishes the chance of data loss, making it a great choice for critical applications requiring consistent reliability.

Finally, the ST3320310CS model holds 320GB of storage capacity and shares many characteristics with its counterparts, such as the 7200 RPM speed and strong error correction mechanisms. The drive also utilizes Seagate's Thermal Fly-Height Control technology, which further enhances reliability by adjusting the read/write heads according to the drive's operational temperature.

Overall, these drives exemplify Seagate's commitment to performance, efficiency, and data protection across their various storage solutions. With a range of capacities and features, they cater to diverse user needs while ensuring reliability and speed in data access.
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