Seagate ST9808211AB, ST960822AB, ST9408114AB manual Set Features command, Features register values

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4.1.3Set 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:

 

Features register 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

 

 

 

 

05H

 

Enable advanced power management

 

 

 

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 indicated above.

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Momentus 5400.2 Blade Server Product Manual, Rev. B

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Contents Momentus5400.2 Blade Server ST9100823AB ST9808211AB ST960822AB ST9408114ABPage Contents Momentus 5400.2 Blade Server Product Manual, Rev. B List of Figures Momentus 5400.2 Blade Server Product Manual, Rev. B Introduction Momentus 5400.2 Blade Server Pata disc driveMomentus 5400.2 Blade Server Product Manual, Rev. B Specifications Drive specificationsSpecification summary To 90% operating Default logical geometry LBA modeFormatted capacity Physical organizationRecording and interface technology Physical characteristicsTechnology Specification Seek time Time to readyTypical seek times msec Read Write Time to ready Typical MaxPower specifications Voltage tolerance Typical current profileConducted noise Environmental specifications Shock Operating shockNonoperating shock VibrationAcoustics Electromagnetic immunityDrive level acoustics Electromagnetic immunitySafety certification Measurement type SpecificationReliability Agency certificationFCC verification Korean RRLAustralian C-Tick N176 European Union Restriction of Hazardous Substances RoHS Environmental protectionCorrosive environment Momentus 5400.2 Blade Server Product Manual, Rev. B Configuring and mounting the drive Handling and static discharge precautionsJumper settings Master/slave configurationDrive mounting Cable-select optionATA interface signals and connector pins Connector signalsConnector Cable Signal Name Contact Conductor Cable Connector Conductor Contact Signal NameCommand name Command code in hex ATA-standard commands Supported ATA commandsSupported commands ATA-standard security commands Command name Command code in hexATA-standard power-management commands Supported commands Identify Device command Word Description ValueXx07H Bit Word Set Features command Features register valuesSeagate Technology support services InternetPresales Support Technical SupportData Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Index NumericsPage TMR Momentus 5400.2 Blade Server Product Manual, Rev. B Page Seagate Technology LLC

ST9808211AB, ST9100823AB, ST9408114AB, ST960822AB specifications

The Seagate ST960822AB, ST9408114AB, ST9100823AB, and ST9808211AB are notable hard disk drives (HDDs) that have made significant contributions to data storage technology. These drives are part of Seagate's extensive lineup, known for their reliability, performance, and innovative features.

The ST960822AB is a 2.5-inch HDD with a storage capacity of 60 GB. It is designed primarily for mobile computing applications, such as laptops and external drives. This model features a low power consumption design that enhances battery life, making it an ideal choice for portable devices. Its data transfer rates are competitive for its class, ensuring fast access to files.

Next, the ST9408114AB presents a slightly higher capacity of 40 GB, also within the 2.5-inch form factor. This drive was engineered for entry-level laptops and external storage solutions. Its Fluid Dynamic Bearing (FDB) technology allows for quieter operation and reduced vibration. With a 5400 RPM speed, it provides adequate performance for everyday tasks, including document storage and multimedia playback.

The ST9100823AB steps into the spotlight with a capacity of 80 GB, catering to users requiring more storage space for games, documents, and multimedia files. This HDD offers enhanced data integrity through Seagate's Advanced Power Management technology, which reduces power consumption without sacrificing performance. The ST9100823AB's consistent performance makes it suitable for both personal and professional use.

Lastly, there is the ST9808211AB, offering 80 GB of storage in a 2.5-inch format. It leverages similar technology as its counterparts but with improved data caching algorithms that allow for quicker access to frequently used files. This HDD is also built with durability in mind, suitable for environments that may experience shocks or vibrations.

All four models incorporate Seagate's commitment to quality with a focus on reliability and efficiency. They are equipped with features that prioritize speed, noise reduction, and power efficiency, making them excellent choices for varied applications in personal computing, gaming, and mobile storage. Collectively, the ST960822AB, ST9408114AB, ST9100823AB, and ST9808211AB represent a significant advancement in hard drive technology, serving users with diverse storage needs effectively.
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