4.3Supported ATA commands

The following table lists Serial ATA standard commands that the drive supports. For a detailed description of the ATA commands, refer to the Serial ATA: High Speed Serialized AT Attachment specification. See “S.M.A.R.T. commands” on page 36.for details and subcommands used in the S.M.A.R.T. implementation.

Table 7: Supported ATA commands

Command name

Command code (in hex)

 

 

Check Power Mode

98H or E5H

Device Configuration Freeze Lock

B1H / C1H

Device Configuration Identify

B1H / C2H

Device Configuration Restore

B1H / C0H

Device Configuration Set

B1H / C3H

Device Reset

08H

Download Microcode

92H

Execute Device Diagnostics

90H

Flush Cache

E7H

Flush Cache Extended

EAH

Format Track

50H

Identify Device

ECH

Idle

97H or E3H

Idle Immediate

95H or E1H

Initialize Device Parameters

91H

Read Buffer

E4H

Read DMA

C8H

Read DMA Extended

25H

Read DMA Without Retries

C9H

Read Log Ext

2FH

Read Multiple

C4H

Read Multiple Extended

29H

Read Native Max Address

F8H

Read Native Max Address Extended

27H

Read Sectors

20H

Read Sectors Extended

24H

Read Sectors Without Retries

21H

Read Verify Sectors

40H

Read Verify Sectors Extended

42H

Read Verify Sectors Without Retries

41H

Recalibrate

10H

Security Disable Password

F6H

Security Erase Prepare

F3H

Barracuda ES.2 Serial ATA Product Manual, Rev. A

29

Page 35
Image 35
Seagate ST3500320NS, ST31000340NS, ST3250310NS, ST3750330NS manual Supported ATA commands, Command name Command code in hex

ST3750330NS, ST31000340NS, ST3250310NS, ST3500320NS specifications

Seagate has long been a leader in the hard drive market, providing various storage solutions for personal and enterprise needs. Among its notable models are the ST3500320NS, ST3320630NS, ST3250310NS, and ST3750330NS, tailored for different applications, particularly in data center environments.

The Seagate ST3500320NS is a 500GB SATA hard drive designed for high-performance computing. One of its key features is a spindle speed of 7200 RPM, which offers quick data access times, significantly reducing latency in read and write operations. This model supports a 3Gb/s SATA interface, ensuring compatibility with a wide range of systems. Another important characteristic of the ST3500320NS is its robust error recovery mechanism, which enhances data integrity, making it suitable for applications where data precision is critical.

The ST3320630NS, on the other hand, is a 320GB variant, also featuring a 7200 RPM spindle speed. This model includes advanced power management features, allowing for reduced energy consumption without sacrificing performance. The drive's design focuses on reliability, designed to handle the demands of continuous operation in RAID configurations or as part of a network-attached storage (NAS) solution. Its dual stage actuator technology ensures more precise positioning of the read/write heads, improving overall performance and durability.

Considered an entry-level model, the ST3250310NS boasts a capacity of 250GB and shares the 7200 RPM speed common to other models. This drive is tailored for cost-effective solutions, providing a balance of price, performance, and reliability for small to medium business environments. Its resilience to shock and vibration makes it suitable for use in mobile workstations and external drives.

Lastly, the ST3750330NS features a significant 750GB capacity while maintaining the same 7200 RPM speed. It offers enhanced caching capabilities with a 32MB buffer, improving data throughput and responsiveness. Designed for high-capacity storage needs, this model is optimized for streaming applications and heavy workloads, reinforcing Seagate's commitment to delivering good performance in demanding scenarios.

All these models embody Seagate's dedication to innovation and reliability, featuring technologies such as Native Command Queuing (NCQ) and S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology) to monitor drive health. With years of expertise, Seagate continues to set industry standards for storage solutions, making these models ideal for a variety of professional applications.