Western Digital Re EX800M, Техническое справочное руководство, Страница: 5 / 60

EX800M Table of Contents
2679-771339-A05 RELEASED 8/13/13 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
....................................................................................................................... 4
2.1 Performance Specifications ......................................................................................................................................................... 4
2.2 CacheFlow™ .................................................................................................................................................................................... 5
2.2.1
Write Cache..................................................................................................................................................................... 5
2.2.2 Read Cache ..................................................................................................................................................................... 5
2.3 Mechanical Specifications............................................................................................................................................................ 6
2.3.1
Physical Dimensions ...................................................................................................................................................... 7
2.3.2 Drive Mounting ................................................................................................................................................................ 7
2.4 Electrical Specifications................................................................................................................................................................ 8
2.4.1
5-disk Platform ................................................................................................................................................................ 8
2.4.2 3-disk Platform ................................................................................................................................................................ 9
2.4.3 Power Savings Modes................................................................................................................................................... 9
2.4.4 Input Voltage Requirements .......................................................................................................................................10
2.4.5 Ripple...............................................................................................................................................................................11
2.4.6 Power Connectors and Cables .................................................................................................................................11
2.4.7 Device Plug Connector Pin Definitions ...................................................................................................................12
2.5 Environmental Specifications.....................................................................................................................................................13
2.5.1
Shock and Vibration .....................................................................................................................................................13
2.5.2 Temperature and Humidity .........................................................................................................................................14
2.5.3 Temperature Measurement.........................................................................................................................................14
2.5.4 Cooling ............................................................................................................................................................................15
2.5.5 Atmospheric Pressure .................................................................................................................................................15
2.5.6 Acoustics ........................................................................................................................................................................15
2.5.7 RoHS (Restriction of Hazardous Substances) ......................................................................................................15
2.6 Agency Approvals.........................................................................................................................................................................16
2.7 Full Model Number Specification..............................................................................................................................................16
3. P
RODUCT
F
EATURES
.............................................................................................................. 17
3.1 SATA 6 Gb/s.................................................................................................................................................................................18
3.2 Optional Self Encrypting Drive (SED)......................................................................................................................................18
3.3 Time-Limited Error Recovery (TLER) .......................................................................................................................................18
3.4 Rotary Acceleration Feed Forward (RAFF)™ .........................................................................................................................19
3.5 Perpendicular Magnetic Recording (PMR).............................................................................................................................19
3.6 IntelliSeek .......................................................................................................................................................................................20
3.7 StableTrac (Double-tied Shaft Motor) .....................................................................................................................................20
3.8 Native Command Queuing (NCQ) ...........................................................................................................................................20
3.9 Pre-emptive Wear Leveling (PWL) ..........................................................................................................................................20
3.10 MicroFemto Slider ........................................................................................................................................................................20
3.11 S.M.A.R.T. Command Transport (SCT)...................................................................................................................................21
3.11.1 Write Same ....................................................................................................................................................................21
3.11.2 Temperature Reporting................................................................................................................................................21
3.12 World Wide Name (WWN) .......................................................................................................................................................21
3.13 Hot Plug Support..........................................................................................................................................................................21
3.14 Active LED Status ........................................................................................................................................................................22
3.15 Fluid Dynamic Bearings (FDB) ..................................................................................................................................................22
3.16 Staggered Spinup and Activity Indication (SATA Power Pin 11) .....................................................................................22
3.16.1 Staggered Spinup ........................................................................................................................................................22
3.16.2 Activity Indication ..........................................................................................................................................................22
3.17 48-bit Logical Block Addressing (LBA) ..................................................................................................................................23
3.18 Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.)..................................................................................23
3.19 Password Security Mode............................................................................................................................................................23
3.19.1 Master and User Passwords ......................................................................................................................................23
3.19.2 Security Levels ..............................................................................................................................................................23