Seagate ST1500VM002, ST2000VM002 manual Identify Device command, Word Description Value

Page 33

www.seagate.com

Serial ATA Interface

Table 6 Supported ATA commands (Continued)

 

 

Command name

Command code (in hex)

 

 

Write Multiple

C5H

Write Multiple Extended

39H

Write Multiple FUA Extended

CEH

Write Sectors

30H

Write Sectors Without Retries

31H

Write Sectors Extended

34H

Write Stream DMA Extended

3AH

Write Stream Extended

3BH

Write Uncorrectable

45H

4.3.1 Identify 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 4096-byte block of data, whose contents are shown in on page 30. 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.

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

Table 7 Identify Device commands

Word

Description

Value

 

 

 

0

Configuration information:

0C5AH

 

• Bit 15: 0 = ATA; 1 = ATAPI

 

 

• 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

x.xx

 

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

 

 

 

 

27–46

Drive model number:

 

 

(40 ASCII characters, padded with blanks to end of string)

 

 

 

 

Pipeline HD SATA Product Manual, Rev. B

33

Page 32 Page 34
Image 33
Page 32 Page 34
Contents 100633414 Rev. B January Pipeline HDRevision Date Description of changes Document Revision HistoryContents Pipeline HD Sata Product Manual, Rev. B Figures Pipeline HD Sata Product Manual, Rev. B Seagate Technology Support Services Pipeline HD Sata Product Manual, Rev. B About the Serial ATA Interface IntroductionIntroduction Drive specification ST2000VM002 ST1500VM002 Specification summary tablesDrive Specifications Default logical geometry LBA modeFormatted capacity Recording and interface technologyPower specifications Physical characteristicsPower consumption Seek timeSpinup Idle* † 151 303 Operating 374 256 Standby 085 Sleep Typical Current Profiles Power modes Heads Spindle Buffer Power-management modesConducted noise Voltage toleranceTemperature gradient Environmental specifications Drive case temperatureHumidity Altitude2000GB and 1500GB models VibrationOperating vibration Nonoperating vibrationTest for Prominent Discrete Tones PDTs AcousticsElectromagnetic immunity Idle Seek All modelsAgency certification Safety certification WarrantyElectromagnetic compatibility FCC verificationChina Restriction of Hazardous Substances RoHS Directive Environmental protectionCorrosive environment Drive Specifications Handling and static-discharge precautions Configuring the driveSerial ATA cables and connectors Attaching Sata cabling Drive mountingMounting dimensions 2000 and 1500GB models Configuring and Mounting the Drive Ground 2nd mate Differential signal pair a from PHY Ground 2nd mate Differential signal pair B from PHYSegment Pin Function Definition Supported ATA commands Command name Command code in hexE5H EAH E7HECH E3HF4H F3HF5H F1HWord Description Value Identify Device commandNumber of current logical sectors per logical track Number of current logical heads57-58 Current capacity in sectors Number of sectors transferred during a Read MultipleBE01H Hardware reset valueFffeh 160-254 ATA-reserved 0000H 255 Integrity word XxA5HBit Word Set Features command Code in features register A.R.T. command A.R.T. commandsEprml IndexPipeline HD Sata Product Manual, Rev. B Pipeline HD Sata Product Manual, Rev. B Pipeline HD Sata Product Manual, Rev. B Page Seagate Technology LLC

ST2000VM002, ST1500VM002 specifications

The Seagate ST1500VM002 and ST2000VM002 are part of the Seagate Video 3.5 Series, designed specifically for surveillance systems and DVRs. These hard drives provide robust storage solutions tailored to handle the high demands of continuous video recording and playback.

Both models boast a 3.5-inch form factor and utilize SATA III interfaces, ensuring fast data transfer rates essential for processing large video files from multiple security cameras. The ST1500VM002 offers a storage capacity of 1.5TB, while the ST2000VM002 provides an enhanced capacity of 2TB, making them suitable for extensive surveillance setups that may require longer retention of video content.

One of the most significant features of these drives is their support for 24/7 operation, allowing them to perform reliably and efficiently under constant load. This aspect is particularly important for security applications where data is consistently being recorded and accessed without downtime. Moreover, both models are optimized for high workload rates, capable of handling workloads of up to 180TB per year, which is essential for the rigorous demands of surveillance use.

The Seagate ST1500VM002 and ST2000VM002 also feature advanced technologies that help enhance performance and reliability. These drives incorporate AgileArray technology, which optimizes drive performance in multi-drive systems and improves RAID performance. This technology also features error recovery controls, which are critical for maintaining data integrity over time.

In terms of reliability, both drives are built with robust components designed to withstand the harsh conditions typically associated with surveillance environments. They come equipped with high shock resistance, ensuring they remain functional in various conditions, preserving valuable data even in the event of physical impacts or vibrations.

Furthermore, they include features like Seagate Rescue Data Recovery Services, providing customers peace of mind knowing that their data can be recovered in unexpected scenarios. Overall, the Seagate ST1500VM002 and ST2000VM002 are excellent choices for anyone in need of high-capacity, reliable storage solutions for their surveillance needs, offering a blend of advanced technology, robust performance, and dependable data integrity.
Top Page Image Contents