Seagate ST9100828SB, ST980815SB, ST960815SB, ST9402116SB manual Set Features command values

Models: ST9402116SB ST980815SB ST9160821SB ST9100828SB ST9120822SB ST960815SB

1 44
Download 44 pages 33.11 Kb
Page 35
Image 35

13

Ultra DMA mode 5 is currently active.

 

 

Bit

Word 93

131 = 80-conductor cable detected, CBLID above VIH 0 = 40-conductor cable detected, CBLID below VIL

4.3.2Set Features command

This command controls the implementation of various features that the drive supports. When the drive receives this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an inter- rupt. If the value in the register does not represent a feature that the drive supports, the command is aborted. Power-on default has the read look-ahead and write caching features enabled. The acceptable values for the Features register are defined as follows:

Table 7: Set Features command values

02H

Enable write cache (default).

03H

Set transfer mode (based on value in Sector Count register).

 

Sector Count register values:

 

00H

Set PIO mode to default (PIO mode 2).

 

01H

Set PIO mode to default and disable IORDY (PIO mode 2).

 

08H

PIO mode 0

 

09H

PIO mode 1

 

0AH

PIO mode 2

 

0BH

PIO mode 3

 

0CH

PIO mode 4 (default)

 

20H

Multiword DMA mode 0

 

21H

Multiword DMA mode 1

 

22H

Multiword DMA mode 2

 

40H

Ultra DMA mode 0

 

41H

Ultra DMA mode 1

 

42H

Ultra DMA mode 2

 

43H

Ultra DMA mode 3

 

44H

Ultra DMA mode 4

 

45H

Ultra DMA mode 5

55H

Disable read look-ahead (read cache) feature.

82H

Disable write cache

AAH

Enable read look-ahead (read cache) feature (default).

F1H

Report full capacity available

Note. At power-on, or after a hardware or software reset, the default values of the features are as indi- cated above.

Momentus 5400.3 SATA Blade Server Product Manual, Rev. E

29

Page 35
Image 35
Seagate ST9100828SB, ST980815SB, ST960815SB, ST9402116SB, ST9160821SB, ST9120822SB manual Set Features command values

ST9402116SB, ST980815SB, ST9160821SB, ST9100828SB, ST9120822SB specifications

The Seagate ST980815SB, ST9120822SB, ST9402116SB, ST9160821SB, and ST9100828SB are a lineup of popular hard disk drives that cater to various data storage needs, especially in enterprise and server environments. Each model features a combination of cutting-edge technology, performance capabilities, and robust reliability, making them ideal choices for businesses and IT infrastructures.

The ST980815SB, with a capacity of 80GB, was designed to meet the requirements of entry-level servers, workstations, and embedded applications. It operates at a spindle speed of 7200 RPM, ensuring quick access to stored data. This model employs the use of perpendicular magnetic recording technology, which enhances data density and reliability, allowing for increased storage capacity in a compact form factor.

The ST9120822SB offers a larger storage capacity of 120GB, targeting small to mid-sized enterprise applications. Like its smaller counterpart, it operates at 7200 RPM, delivering high transfer rates and low latency, which are critical for data-intensive operations. It includes features such as Native Command Queuing (NCQ) that optimizes the order of read and write commands, enhancing overall performance during multi-tasking operations.

Next in line, the ST9402116SB provides an impressive 400GB of storage, catering to applications that require a substantial amount of capacity. This model also uses a 7200 RPM spindle speed and incorporates SATA interface technology, providing fast data transfer rates while ensuring seamless integration into existing systems. Its robust design makes it suitable for continuous operation in always-on environments.

The ST9160821SB is another impressive offering, with a maximum capacity of 160GB that serves businesses demanding higher storage solutions without sacrificing performance. It maintains 7200 RPM speeds and is built with advanced thermal and vibration protection features, ensuring stable performance under varying environmental conditions.

Lastly, the ST9100828SB rounds out this lineup with its unique balance of performance and capacity, offering 80GB of storage. It also benefits from Seagate's legacy of reliability and comes equipped with a SATA interface, ensuring compatibility with modern systems.

Overall, these Seagate models represent a comprehensive suite of solutions that meet the diverse needs of businesses, successfully combining capacity, speed, and reliability for optimal data storage solutions. Each of these devices leverages Seagate's cutting-edge technologies to deliver high performance and uptime, making them a reliable choice for both small businesses and enterprise-level applications.