Seagate ST1500VM002, ST2000VM002 manual Conducted noise, Voltage tolerance, Power-management modes

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Drive Specifications

2.8.2 Conducted noise

Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on the +12V line or an equivalent 15-ohm resistive load on the +5V line.

•Using 12V power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave injected noise at up to 10MHz.

•Using 5V power, the drive is expected to operate with a maximum of 100 mV peak-to-peak square-wave injected noise at up to 10MHz.

Note. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current.

2.8.3 Voltage tolerance

Voltage tolerance (including noise):

5V: ± 5%

12V: ± 10%

2.8.4 Power-management modes

The drive provides programmable power management to provide greater energy efficiency. In most systems, you can control power management through the system setup program. The drive features the following power- management modes:

 

Power modes

Heads

Spindle

Buffer

 

 

 

 

 

 

 

 

Active

Tracking

Rotating

Enabled

 

 

 

 

 

 

 

Idle

Tracking

Rotating

Enabled

 

 

 

 

 

 

 

Standby

Parked

Stopped

Enabled

 

 

 

 

 

 

 

Sleep

Parked

Stopped

Disabled

 

 

 

 

 

• Active mode

 

 

 

 

 

The drive is in Active mode during the read/write and seek operations.

•

Idle mode

 

 

 

 

 

The buffer remains enabled, and the drive accepts all commands and returns to Active mode any time disk

 

access is necessary.

 

 

 

• Standby mode

 

 

 

 

 

The drive enters Standby mode when the host sends a Standby Immediate command. If the host has set the

 

standby timer, the drive can also enter Standby mode automatically after the drive has been inactive for a spec-

 

ifiable length of time. The standby timer delay is established using a Standby or Idle command. In Standby

 

mode, the drive buffer is enabled, the heads are parked and the spindle is at rest. The drive accepts all com-

 

mands and returns to Active mode any time disk access is necessary.

• Sleep mode

 

 

 

 

 

The drive enters Sleep mode after receiving a Sleep command from the host. In Sleep mode, the drive buffer is

 

disabled, the heads are parked and the spindle is at rest. The drive leaves Sleep mode after it receives a Hard

 

Reset or Soft Reset from the host. After receiving a reset, the drive exits Sleep mode and enters Standby mode

 

with all current translation parameters intact.

 

 

•

Idle and Standby timers

 

 

 

 

Each time the drive performs an Active function (read, write or seek), the standby timer is reinitialized and

 

begins counting down from its specified delay times to zero. If the standby timer reaches zero before any drive

 

activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the drive

 

accepts all commands and returns to Active mode when disk access is necessary.

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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 Serial ATA cables and connectors Handling and static-discharge precautionsConfiguring the drive Attaching Sata cabling Drive mountingMounting dimensions 2000 and 1500GB models Configuring and Mounting the Drive Segment Pin Function Definition Ground 2nd mate Differential signal pair a from PHYGround 2nd mate Differential signal pair B from PHY E5H Supported ATA commandsCommand name Command code in hex 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.
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