Serial ATA Interface

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Table 9

 

Set Features command values (Continued)

 

 

 

 

 

55H

 

Disable read look-ahead (read cache) feature.

 

82H

 

Disable write cache.

 

86H

 

Disable the PUIS feature set.

 

90H

 

Disable use of SATA features.

 

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.

4.3.3

S.M.A.R.T. commands

 

S.M.A.R.T. provides near-term failure prediction for disk drives. When S.M.A.R.T. is enabled, the drive monitors predetermined drive attributes that are susceptible to degradation over time. If self-monitoring determines that a failure is likely, S.M.A.R.T. makes a status report available to the host. Not all failures are predictable. S.M.A.R.T. predictability is limited to the attributes the drive can monitor. For more information on S.M.A.R.T. commands and implementation, see the Draft ATA-5 Standard.

SeaTools diagnostic software activates a built-in drive self-test (DST S.M.A.R.T. command for D4H) that eliminates unnecessary drive returns. The diagnostic software ships with all new drives and is also available at: http://seatools.seagate.com.

This drive is shipped with S.M.A.R.T. features disabled. You must have a recent BIOS or software package that supports S.M.A.R.T. to enable this feature. The table below shows the S.M.A.R.T. command codes that the drive uses.

Table 10 S.M.A.R.T. commands

Code in features register

S.M.A.R.T. command

 

 

D0H

S.M.A.R.T. Read Data

 

 

D2H

S.M.A.R.T. Enable/Disable Attribute Autosave

 

 

D3H

S.M.A.R.T. Save Attribute Values

D4H

S.M.A.R.T. Execute Off-line Immediate (runs DST)

 

 

D5H

S.M.A.R.T. Read Log Sector

 

 

D6H

S.M.A.R.T. Write Log Sector

D8H

S.M.A.R.T. Enable Operations

D9H

S.M.A.R.T. Disable Operations

 

 

DAH

S.M.A.R.T. Return Status

Note

If an appropriate code is not written to the Features Register, the command is aborted and 0x04 (abort) is

written to the Error register.

 

 

 

38

Pipeline HD SATA Product Manual, Rev. B

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Seagate ST2000VM002, ST1500VM002 manual A.R.T. commands, Code in features register A.R.T. command
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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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