Western Digital scorpio black mx320s-1, Technical Reference Manual

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WD Scorpio ML320S-AF2 Table of Contents
2679-771320-A00 RELEASED 4/7/11 (WD CONFIDENTIAL) i
T
ABLE OF
C
ONTENTS
1. D
ESCRIPTION AND
F
EATURES
................................................................................................. 1
1.1 General Description ....................................................................................................................................................................... 1
1.2 Product Features ............................................................................................................................................................................ 1
2. S
PECIFICATIONS
....................................................................................................................... 3
2.1 Performance Specifications ......................................................................................................................................................... 3
2.2 Physical Specifications.................................................................................................................................................................. 4
2.2.1
Physical Dimensions ...................................................................................................................................................... 5
2.3 Mechanical Specifications............................................................................................................................................................ 6
2.4 Electrical Specifications................................................................................................................................................................ 7
2.4.1
Current Requirements and Power Dissipation ........................................................................................................ 7
2.4.2 Input Voltage Requirements ......................................................................................................................................... 8
2.4.3 Ripple................................................................................................................................................................................. 8
2.4.4 ESD.................................................................................................................................................................................... 8
2.5 Environmental Specifications....................................................................................................................................................... 8
2.5.1
Shock and Vibration ....................................................................................................................................................... 9
2.5.2 Temperature and Humidity .........................................................................................................................................10
2.5.3 Thermocouple Location...............................................................................................................................................10
2.5.4 Cooling ............................................................................................................................................................................11
2.5.5 Atmospheric Pressure .................................................................................................................................................11
2.5.6 Acoustics ........................................................................................................................................................................11
2.5.7 RoHS (Restriction of Hazardous Substances) ......................................................................................................11
2.6 Reliability Specifications .............................................................................................................................................................11
2.7 Device Plug Connector Pin Definitions ...................................................................................................................................12
2.8 Agency Approvals.........................................................................................................................................................................13
2.9 Full Model Number Specification..............................................................................................................................................13
3. P
RODUCT
F
EATURES
.............................................................................................................. 14
3.1 SATA 3 Gb/s and SATA 1.5 Gb/s ..........................................................................................................................................15
3.2 Perpendicular Magnetic Recording (PMR).............................................................................................................................15
3.3 Reduced Power Spinup (RPS) .................................................................................................................................................16
3.4 System-on-Chip (SOC)..............................................................................................................................................................16
3.5 S.M.A.R.T. Command Transport (SCT)...................................................................................................................................17
3.5.1
Write Same ....................................................................................................................................................................17
3.5.2 Read/Write Long ..........................................................................................................................................................17
3.5.3 Temperature Reporting................................................................................................................................................17
3.6 Reliability Features Set................................................................................................................................................................18
3.6.1
Data Lifeguard™ ............................................................................................................................................................18
3.6.2 Thermal Management ..................................................................................................................................................18
3.6.3 Internal Environmental Protection System ..............................................................................................................19
3.6.4 Recoverable Errors .......................................................................................................................................................19
3.6.5 Unrecoverable Errors ...................................................................................................................................................19
3.6.6 Self Test ..........................................................................................................................................................................19
3.6.7 ATA Error Logging........................................................................................................................................................19
3.6.8 Defect Management.....................................................................................................................................................19
3.6.9 Automatic Defect Retirement.....................................................................................................................................20
3.6.10 Error Recovery Process...............................................................................................................................................20
3.7 Hot Plug Support..........................................................................................................................................................................20
3.7.1
Hot Plug Technical Issues ..........................................................................................................................................21
3.8 Active LED Status ........................................................................................................................................................................23
3.9 Fluid Dynamic Bearings (FDB) ..................................................................................................................................................24
3.10 Staggered Spinup and Activity Indication (SATA Power Pin 11) .....................................................................................24
3.10.1 Staggered Spinup ........................................................................................................................................................24
3.10.2 Activity Indication ..........................................................................................................................................................24
3.11 CacheFlow™ ..................................................................................................................................................................................24
3.11.1 Write Cache...................................................................................................................................................................24
3.11.2 Read Cache ...................................................................................................................................................................25