Product; Roduct Eatures; Sata 6 Gb/S And 3 Gb/S; P Roduct F Eatures - Western Digital caviar blue xl500s Technical Reference Manual

XL500S
3.0 P F
RODUCT
SATA 6 Gb/s and SATA 3 Gb/s
Perpendicular Magnetic Recording (PMR)
IntelliSeek™
NoTouch™
Native Command Queuing (NCQ)
Pre-Emptive Wear Leveling (PWL)
Femto Slider
S.M.A.R.T. Command Transport (SCT)
World Wide Name (WWN)
Reliability Features Set—Data Lifeguard™
Hot Plug Support
Active LED Status
Fluid Dynamic Bearings (FDB)
Staggered Spin-Up and Activity Indication (SATA Power Pin 11)
CacheFlow™
48-bit Logical Block Addressing (LBA)
Power Management
Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.)
Security Mode
Automatic Acoustic Management (AAM)
3.1

SATA 6 Gb/s and 3 Gb/s

SATA 6 Gb/s and 3 Gb/s are the next generation interfaces for SATA hard drives. They add to
the functionality of the SATA I interface with the following features:
Native Command Queuing (NCQ) — server feature for performance in random I/O
transaction environments. It aggregates many small random data transfers and allows the
disk to reorder the commands in a sequential order for faster access.
Improved Power Management— provides improved power management features
including Host Initiated SATA Power Management (HIPM) and Device Initiated SATA
Power Management (DIPM).
Staggered Spin-up — allows the system to control whether the drive will spin up
immediately or wait until the interface is fully ready before spinning up.
Asynchronous Signal Recovery (ASR) — robustness feature that improves signal
recovery.
Enclosure Services — defines external enclosure management and support features.
Backplane Interconnect — defines how to lay out signal line traces in a backplane.
Auto-activate DMA — provides increased command efficiency through automated
activation of the DMA controller.
Device Configuration Overlay (DCO) — allows hiding of supported features via a
SATA feature mask.
2679-701211-A06
EATURES
RELEASED 10/21/10 (WD CONFIDENTIAL)
Product Features
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