WD Scorpio ML160M
Description and Features
2679-701205-A00
RELEASED 1/16/09 (WD CONFIDENTIAL)
1
1.0
D
ESCRIPTION
AND
F
EATURES
1.1
General Description
WD Scorpio 2.5-inch drives offer fast performance and low power consumption, making them
ideal for notebooks and other portable devices.
1.2
Product Features
Perpendicular Magnetic Recording (PMR)
— With PMR technology the
magnetization of each data bit is aligned vertically to the spinning disk, rather than
longitudinally as has been the case in hard drive technology for decades. This enables
more data on a given disk than is possible with conventional longitudinal recording, and
provides a platform for future expansion of hard drive densities.
Reduced Power Spinup (RPS)
— WD’s optimized start up feature specifically
designed for the external hard drive and Consumer Electronics (CE) market. Specific
focus for RPS is to minimize the duration and magnitude of the peak power consumption
from the hard drive.
Ramp Load/Unload (LUL)
— LUL is a proven design that parks the recording head
when the drive is idle and on spin up, maximizing available disk space and minimizing
power usage, which results in lower transient acoustics, lower heat, and long-term drive
reliability.
System-on-Chip
- The System-on-Chip (SOC) is the foundation for WD's next
generation electronics and firmware architecture. The SOC lowers component count by
integrating a hard disk controller, high performance processor, high speed execution
SRAM, and read channel in a 128-pin package.
S.M.A.R.T. Command Transport (SCT)
— The SCT Command Transport feature set
provides a method for a host to send commands and data to a device and for a device to
send data and status to a host using log pages.
Reliability Features Set-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.
Fluid Dynamic Bearings (FDB)
— Bearing design that incorporates a layer of high-
viscosity lubricant instead of ball bearings in the hard drive spindle motor. As an
alternative to conventional ball bearing technology, FDB designs provide increased non-
operational shock resistance, speed control, and improved acoustics.
CacheFlow
™ —WD’s unique, multi-generation caching algorithm evaluates the way data
is read from and written to the drive and adapts “on-the-fly” to the optimum read and write
caching methods. CacheFlow minimizes disk seek operations and overheads due to
rotational latency. CacheFlow supports sequential and random write cache. With write
cache and other CacheFlow features, the user can cache both read and write data. The
cache can hold multiple writes and collectively write them to the hard drive.
Power Management
— The drive supports the ATA and SATA power management
command set, allowing the host to reduce the power consumption of the drive by issuing
a variety of power management commands.
