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3.5.1
Write Same
The Write Same command allows the host to erase the media, or write a pattern
repeatedly across the media, with a minimum of data transfer from the host. The host
can clear the entire media to zeros or a specific pattern by sending this command
with the pattern as a parameter—no data transfer is necessary. Write Same can write
the entire media, or just a portion of the media. The host can monitor the progress of
the Write Same by issuing SCT Status requests. This frees the host system to do other
tasks while the media is being cleared.
3.5.2
Temperature Reporting
The SCT Temperature Reporting (SCT TR) feature allows a host system to access
temperature information in the drive. This information can been used to control fans
or adjust the usage of various system components to keep the drive within its normal
operating temperature. Applications include Enterprise, Laptop, Desktop and
Consumer Electronics. SCT TR reports the maximum and minimum sustained
operating limits, warning level limits, and drive damage limits. In addition to reporting
the limits, SCT TR returns the current drive temperature (a temperature history which
the host can use to predict heating or cooling trends) and the maximum temperature
achieved during the lifetime of the drive as well as the highest temperature achieved
since the power was applied to the drive. Detailed information on this capability can
be found in ATA8-ACS.
3.6
Reliability Features Set
3.6.1
Data Lifeguard™
Representing WD's ongoing commitment to data protection, Data Lifeguard includes
features that enhance the drive's ability to prevent data loss. Data Lifeguard data
protection utilities include thermal management, an environmental protection
system, and embedded error detection and repair features that automatically detect,
isolate, and repair problem areas that may develop over the extended use of the hard
drive. With these enhanced data reliability features, the drive can perform more
accurate monitoring, error repair, and deliver exceptional data security.
All WD drives are defect-free and low-level formatted at the factory. After prolonged
use, any drive, including a WD drive, may develop defects. If you continue receiving
data errors in any given file, use the Data Lifeguard Diagnostics utility to recover,
relocate and rewrite the user data to the nearest spare sector and maintain a
secondary defect list.
CAUTION: As with all format utilities, some options in the Data Lifeguard Diagnostics
utility will overwrite user data.
Download the latest versions of the Data Lifeguard Diagnostic and Data Lifeguard
Tools programs at support.wd.com.
3.6.2
Thermal Management
The drive is designed with Thermal Management features for high reliability.
State-of-the-art mechanical design—Mechanical design is optimized to reduce
the drive's temperature. State-of-the-art thermal dissipation and windage design
is employed.
Product Features
WESTERN DIGITAL CONFIDENTIAL
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