Seagate ST2000VM002, ST1500VM002 Number of current logical heads, Current capacity in sectors

Page 34

Serial ATA Interface

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Table 7

Identify Device commands (Continued)

 

 

 

 

 

Word

 

Description

Value

 

 

 

 

47

 

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

8010H

 

 

Write multiple (16)

 

 

 

 

 

48

 

Reserved

0000H

 

 

 

 

49

 

Standard Standby timer, IORDY supported and may be disabled

2F00H

 

 

 

 

50

 

ATA-reserved

4000H

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

xxxxH

 

 

or Write Multiple command

 

 

 

 

 

60–61

 

Total number of user-addressable LBA sectors available

0FFFFFFFh*

 

 

(see Section 2.2 for related information)

 

 

 

*Note: The maximum value allowed in this field is: 0FFFFFFFh

 

 

 

(268,435,455 sectors, 137 Gbytes). Drives with capacities over

 

 

 

137 Gbytes will have 0FFFFFFFh in this field and the actual num-

 

 

 

ber of user-addressable LBAs specified in words 100-103. This is

 

 

 

required for drives that support the 48-bit addressing feature.

 

 

 

 

 

62

 

Retired

0000H

63

 

Multiword DMA active and modes supported

xx07H

 

 

(see note following this table)

 

 

 

 

 

64

 

Advanced PIO modes supported (modes 3 and 4 supported)

0003H

 

 

 

 

65

 

Minimum multiword DMA transfer cycle time per word (120 nsec)

0078H

 

 

 

 

66

 

Recommended multiword DMA transfer cycle time per word

0078H

 

 

(120 nsec)

 

 

 

 

 

67

 

Minimum PIO cycle time without IORDY flow control (240 nsec)

0078H

68

 

Minimum PIO cycle time with IORDY flow control (120 nsec)

0078H

69–74

 

ATA-reserved

0000H

 

 

 

 

75

 

Queue depth

001FH

76

 

Serial ATA capabilities

xxxxH

77

 

Reserved for future Serial ATA definition

xxxxH

 

 

 

 

78

 

Serial ATA features supported

xxxxH

79

 

Serial ATA features enabled

xxxxH

 

 

 

 

80

 

Major version number

01F0H

 

 

 

 

34

Pipeline HD SATA Product Manual, Rev. B

Image 34
Contents Pipeline HD 100633414 Rev. B JanuaryDocument Revision History Revision Date Description of changesContents 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 Introduction About the Serial ATA InterfaceIntroduction Specification summary tables Drive specification ST2000VM002 ST1500VM002Drive Specifications Formatted capacity LBA modeDefault logical geometry Recording and interface technologyPower consumption Physical characteristicsPower specifications Seek timeSpinup Idle* † 151 303 Operating 374 256 Standby 085 Sleep Typical Current Profiles Conducted noise Power-management modesPower modes Heads Spindle Buffer Voltage toleranceHumidity Environmental specifications Drive case temperatureTemperature gradient AltitudeOperating vibration Vibration2000GB and 1500GB models Nonoperating vibrationElectromagnetic immunity AcousticsTest for Prominent Discrete Tones PDTs Idle Seek All modelsElectromagnetic compatibility WarrantyAgency certification Safety certification FCC verificationEnvironmental protection China Restriction of Hazardous Substances RoHS DirectiveCorrosive environment Drive Specifications Configuring the drive Handling and static-discharge precautionsSerial ATA cables and connectors Drive mounting Attaching Sata cablingMounting dimensions 2000 and 1500GB models Configuring and Mounting the Drive Ground 2nd mate Differential signal pair B from PHY Ground 2nd mate Differential signal pair a from PHYSegment Pin Function Definition Command name Command code in hex Supported ATA commandsE5H ECH E7HEAH E3HF5H F3HF4H F1HIdentify Device command Word Description Value57-58 Current capacity in sectors Number of current logical headsNumber of current logical sectors per logical track Number of sectors transferred during a Read MultipleFffeh Hardware reset valueBE01H 160-254 ATA-reserved 0000H 255 Integrity word XxA5HBit Word Set Features command A.R.T. commands Code in features register A.R.T. commandIndex EprmlPipeline 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.