Subscribe to Our Youtube Channel
Related Manuals for Western Digital Scorpio ML320S-AF2
Summary of Contents for Western Digital Scorpio ML320S-AF2
- Page 1 WD Scorpio ® Blue ML320S-AF2 SATA Hard Drives WD3200BPVT WD2500BPVT WD CONFIDENTIAL...
- Page 2 WD. WD reserves the right to change specifications at any time without notice. Western Digital, WD, the WD logo, and WD Scorpio are registered trademarks in the U.S. and other countries; and Data Lifeguard, CacheFlow, and FIT Lab are trademarks of Western Digital Technologies, Inc.
- Page 3 WD Scorpio ML320S-AF2 WD3200BPVT WD2500BPVT Technical Reference Manual 2679-771320-A00 RELEASED 4/7/11 (WD CONFIDENTIAL)
- Page 4 RELEASED 4/7/11 (WD CONFIDENTIAL) 2679-771320-A00...
-
Page 5: Table Of Contents
WD Scorpio ML320S-AF2 Table of Contents ABLE OF ONTENTS 1. D ....................1 ESCRIPTION AND EATURES 1.1 General Description ..................................1 1.2 Product Features .................................... 1 2. S ........................3 PECIFICATIONS 2.1 Performance Specifications ................................. 3 2.2 Physical Specifications.................................. 4 2.2.1... - Page 6 Table of Contents WD Scorpio ML320S-AF2 3.11.3 48-bit Logical Block Addressing (LBA) ........................25 3.12 Power Management ..................................25 3.13 Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.)..................25 3.14 Security Mode ....................................26 3.14.1 Master and User Passwords ............................26 3.14.2 Security Levels ................................26 4. AT C ........................
- Page 7 WD Scorpio ML320S-AF2 List of Figures IST OF IGURES Figure 2-1 Mounting Dimensions ............................6 Figure 2-2 Typical +5V Current Draw During Spinup .....................7 Figure 2-3 Drive Base Casting Thermocouple Location ....................9 Figure 2-4 Forced Airflow Direction ........................... 10 Figure 2-5 Standard Factory Connectors ......................... 11 Figure 3-1 RPS Spinup Profile ............................
- Page 8 WD Scorpio ML320S-AF2 List of Tables IST OF ABLES Table 2-1 Shock and Vibration ...............................8 Table 2-2 Device Pin Connector Pin Definitions ......................11 Table 2-3 Full Model Number Description........................12 Table 4-1 ATA-7/ATA-8 Command Opcodes......................... 26 Table 4-2 SATA 2.5 Command Opcodes ........................27 Table 4-3 Obsolete Command Opcodes .........................
-
Page 9: Description And Features
WD Scorpio ML320S-AF2 Description and Features ESCRIPTION AND EATURES General Description WD Scorpio 2.5-inch drives offer fast performance and low power consumption, making them ideal for notebooks and other portable devices. Product Features Serial ATA (SATA) — Serial ATA (SATA) is the next generation bus interface for 2.5-inch hard drives. - Page 10 Description and Features WD Scorpio ML320S-AF2 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 rota- tional latency.
-
Page 11: Specifications
WD Scorpio ML320S-AF2 Specifications PECIFICATIONS Performance Specifications Average Seek - Read 12.0 ms average - Write 15.0 ms average Track-to-Track Seek 1.5 ms average Full Stroke Seek 24 ms average Index Pulse Period 11.1 ms (nominal) Average Latency 5.5 ms... -
Page 12: Physical Specifications
Specifications WD Scorpio ML320S-AF2 Physical Specifications Physical WD2500BPVT WD3200BPVT Specifications 250,059 MB 320,072 MB Capacity Interface (BEVT) SATA 3.0 Gb/s SATA 3.0 Gb/s Actuator Type Rotary Voice Rotary Voice Coil Coil Number of Disks Data Surfaces Number of Heads Physical bytes per Sector... -
Page 13: Physical Dimensions
WD Scorpio ML320S-AF2 Specifications 2.2.1 Physical Dimensions English Metric Dimension Tolerance Dimension Tolerance Height 0.374 inches ±0.01 inch 9.50 mm ±0.20 mm Length 3.94 inches ±0.01 inch 100.20 mm ±0.25 mm Width 2.75 inches ±0.01 inch 69.85 mm ±0.25 mm Weight (typical) 0.22 pounds... -
Page 14: Mechanical Specifications
Specifications WD Scorpio ML320S-AF2 Mechanical Specifications Figure 2-1 shows the mounting dimensions and locations of the screw holes for the drive. Figure 2-1. Mounting Dimensions RELEASED 4/7/11 (WD CONFIDENTIAL) 2679-771320-A00... -
Page 15: Electrical Specifications
WD Scorpio ML320S-AF2 Specifications Electrical Specifications 2.4.1 Current Requirements and Power Dissipation Operating Mode Current Power 5 VDC Spinup (max) 950 mA 4.75W Read/Write (average) 320 mA 1.6W Seek (average) 320 mA 1.6W POWER MANAGEMENT COMMANDS Operating Mode Current Power... -
Page 16: Input Voltage Requirements
Specifications WD Scorpio ML320S-AF2 2.4.2 Input Voltage Requirements The input voltage requirement for these drives is +5.0V ± 5%. 2.4.3 Ripple +5 VDC Maximum 100 mV (peak-to-peak) Frequency 10 KHz - 30 MHz 2.4.4 The ESD specification compliance is determined at room ambient conditions with nominal power supply settings, unless otherwise specified. - Page 17 WD Scorpio ML320S-AF2 Specifications Drives are tested by applying a random or swept sinusoidal excitation in each linear axis, one axis at a time. The drive incurs no physical damage when subjected to continuous vibration not exceeding the level listed in Table 2-1.
-
Page 18: Temperature And Humidity
Specifications WD Scorpio ML320S-AF2 2.5.2 Temperature and Humidity Temperature & Humidity Operating ambient temperature 0°C to 60°C (32°F to 140°F) Max base casting temperature 60°C (140°F) Humidity 8-90% RH non-condensing 29.4°C (maximum wet bulb) Thermal Gradient 20°C/hour (maximum) Humidity Gradient... -
Page 19: Cooling
WD Scorpio ML320S-AF2 Specifications 2.5.4 Cooling If forced air cooling is required, the drive must be positioned to receive airflow from one or more fans as indicated in Figure 2-4. Figure 2-4. Forced Airflow Direction 2.5.5 Atmospheric Pressure Altitude Operating... -
Page 20: Device Plug Connector Pin Definitions
Specifications WD Scorpio ML320S-AF2 Device Plug Connector Pin Definitions The drive interfaces with the host I/O bus via the SATA interface connection, and receives power from the SATA power connection, illustrated in Figure 2-5 below. Table 2-2 identifies the pin definitions of the SATA connectors and the corresponding signal names and signal functions. -
Page 21: Agency Approvals
WD Scorpio ML320S-AF2 Specifications Agency Approvals ML320S-AF2 Regulatory Number (R/N): 771692 These drives meet the standards of the following regulatory agencies: Federal Communication Commission: Verified to comply with FCC Rules for Radiated and Conducted Emission, Part 15, Subpart B, for Class B Equipment. -
Page 22: Product
Product Features WD Scorpio ML320S-AF2 RODUCT EATURES SATA 3.0 Gb/s Perpendicular Magnetic Recording (PMR) Reduced Power Spinup (RPS) System-on-Chip (SOC) S.M.A.R.T. Command Transport (SCT) 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™... -
Page 23: Perpendicular Magnetic Recording (Pmr)
WD Scorpio ML320S-AF2 Product Features SATA 3 Gb/s SATA 3 Gb/s is the next generation interface for SATA hard drives. It adds to the functionality of the SATA I interface with the following features: Improved Power Management— provides improved power management features including Host Initiated SATA Power Management (HIPM) and Device Initiated SATA Power Management (DIPM). -
Page 24: Reduced Power Spinup (Rps)
Product Features WD Scorpio ML320S-AF2 Reduced Power Spinup (RPS) Applications for 2.5-inch hard drives like the WD Scorpio include USB external hard drives, notebook systems, and Consumer Electronics (CE). Due to the fact that many of these applications are portable in nature, an option for limiting startup current levels and increasing spinup speed is necessary. -
Page 25: Command Transport (Sct)
WD Scorpio ML320S-AF2 Product Features 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. Standard ATA commands may be interspersed with SCT commands, but SCT commands cannot be nested. -
Page 26: Reliability Features Set
Product Features WD Scorpio ML320S-AF2 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. -
Page 27: Internal Environmental Protection System
WD Scorpio ML320S-AF2 Product Features 3.6.3 Internal Environmental Protection System This system protects the inside environment of the drive from contamination. System features include: Filtration System to ensure fast clean-up times Directed airflow to maximize mechanical cooling Increase casting surface area to maximize cooling... -
Page 28: Automatic Defect Retirement
Product Features WD Scorpio ML320S-AF2 3.6.9 Automatic Defect Retirement The automatic defect retirement feature automatically maps out defective sectors while reading or writing. If a defective sector appears, the drive finds a spare sector. The following item is specific to automatic defect retirement on writes (write auto-relocation): Data is always written to disk (using automatic defect retirement if required) and no error is reported. -
Page 29: Hot Plug Support
WD Scorpio ML320S-AF2 Product Features Hot Plug Support SATA supports hot plugging (also known as “hot swapping”), the ability to swap out a failed hard drive without having to power down the system or reboot. This capability contributes to both data availability and serviceability without any associated downtime, making it a critical feature for extending SATA into enterprise applications. - Page 30 Product Features WD Scorpio ML320S-AF2 voltage busses. This residual droop needs to be eliminated or at least reduced to a very small value because most power distribution budgets do not provide allowances for this droop. Low ESR bulk capacitors installed on the backplane voltage busses for each hot plug connector can minimize this droop.
-
Page 31: Active Led Status
WD Scorpio ML320S-AF2 Product Features could also be a problem with backward compatibility. Both these issues need new specification items in drive specifications to set limits for both the disk drive designers and designers of hot plug enclosures. 3.7.1.6 Hot Plug Removal Issues Generally, removal of hot plug disk drives does not present any technical issues. -
Page 32: Fluid Dynamic Bearings (Fdb)
Product Features WD Scorpio ML320S-AF2 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. -
Page 33: 3.11.2 Read Cache
WD Scorpio ML320S-AF2 Product Features The write cache adaptively detects random and sequential access patterns during application execution. If a defective sector is found during a write cache operation, that sector is automatically relocated before the write occurs. 3.11.2 Read Cache CacheFlow implements a multiple segment read cache. -
Page 34: Security Mode
Product Features WD Scorpio ML320S-AF2 3.14 Security Mode The Security Mode feature set allows the user to create a device lock password that prevents unauthorized hard drive access even if the drive is removed from the computer. 3.14.1 Master and User Passwords The manufacturer/dealer can set a master password using the Security Set Password command, without enabling the device lock function. -
Page 35: At Command Set
WD Scorpio ML320S-AF2 AT Command Set AT C OMMAND Host Interface Commands 4.1.1 ATA-7/ATA-8 Commands Table 4-1 lists the hexadecimal codes specific to each ATA-7/ATA-8 command supported by these hard drives. Refer to the D1699 ATA8-ACS specification for full details on each command. -
Page 36: Sata 2.5 Commands
AT Command Set WD Scorpio ML320S-AF2 COMMAND HEX OPCODE STANDBY STANDBY IMMEDIATE WRITE BUFFER WRITE DMA WRITE DMA EXT WRITE LOG EXT WRITE MULTIPLE WRITE MULTIPLE EXT WRITE SECTOR(S) WRITE SECTOR(S) EXT 4.1.2 SATA 2.5 Commands Table 4-2 lists the hexadecimal codes specific to each SATA 2.5 command supported by these hard drives. -
Page 37: Sct Commands
WD Scorpio ML320S-AF2 AT Command Set 4.1.4 SCT Commands SCT commands provide capabilities not covered in ATA/ATAPI-7 for commands that do not fit the ATA command delivery model. Some SCT commands report completion when the command begins execution. Execution progress for these commands may be checked by requesting SCT status. For instance, the host can track the progress of a Write Same command by issueing a status request once per minute. - Page 38 AT Command Set WD Scorpio ML320S-AF2 BYTE VALUE DESCRIPTION The self-test routine was interrupted by the host with a hard or soft reset A fatal error or unknown test error occurred while the device was executing its self-test routine. The device was unable to complete the self-test routine.
-
Page 39: Supported Attributes
WD Scorpio ML320S-AF2 AT Command Set 4.2.2 Supported Attributes The drive supports the following attributes. Attribute Attribute ID Number Pre-Failure/Advisory Bit (Status Flags bit 0) Read Error Rate Pre-Failure Spin-up Time Pre-Failure Start/Stop Count Advisory Re-allocated Sector Count Pre-Failure Seek Error Rate... -
Page 40: Read Log Sector
AT Command Set WD Scorpio ML320S-AF2 4.2.3 Read Log Sector There are several logs that can be read with the S.M.A.R.T. Read Log Sector sub-command. The LBA Low Register indicates the log sector to be returned. Table 4-6. Defined Error Logging Sectors... -
Page 41: Identify Device (Ech)
WD Scorpio ML320S-AF2 AT Command Set Identify Device (ECh) The Identify Device command transfers 512 bytes of data that specify the drive’s parameters. Table 4-7 lists the parameters read by the host. Table 4-7. Identify Device Command WORD FIELD DESCRIPTION... - Page 42 AT Command Set WD Scorpio ML320S-AF2 WORD FIELD DESCRIPTION VALUE Obsolete Multi-Word DMA Transfer Mode Supported Bit 10: If set, Multiword DMA mode 2 is selected Bit 9: If set, Multiword DMA mode 1 is selected XX07h Bit 8: If set, Multiword DMA mode 0 is selected...
- Page 43 WD Scorpio ML320S-AF2 AT Command Set WORD FIELD DESCRIPTION VALUE Command and feature sets supported Bit 14: If set, NOP command supported Bit 13: If set, Read buffer command supported Bit 12: If set, Write buffer command supported Bit 11: Obsolete...
- Page 44 AT Command Set WD Scorpio ML320S-AF2 WORD FIELD DESCRIPTION VALUE Commands and Feature sets supported or enabled Bit 15: If set, Words 119-120 are valid Bit 14: Reserved Bit 13: If set, Flush Cache EXT command supported Bit 12: If set, Flush Cache command supported...
- Page 45 WD Scorpio ML320S-AF2 AT Command Set WORD FIELD DESCRIPTION VALUE 108-111 World Wide Name XXXXXXXXXXXXXXXX 112-118 Not supported Commands and feature sets supported (Continued from words 82-84) Bit 15: Cleared to zero Bit 14: Shall be set to one Bit 13-6: Reserved...
-
Page 46: Set Features (Efh)
AT Command Set WD Scorpio ML320S-AF2 Set Features (EFh) The Set Features command enables or disables the features listed in the following table FUNCTION FEATURES SECTOR COUNT REGISTER REGISTER Don’t care Enable read cache Don’t care Disable read cache Don’t care Enable write cache Don’t care... -
Page 47: Installation And Setup Procedures
WD Scorpio ML320S-AF2 Installation and Setup Procedures NSTALLATION AND ETUP ROCEDURES Hard drives are precision instruments that must be handled with care to prevent damage. It is important to understand that drives are typically damaged due to electrostatic discharge (ESD), pressing on the top cover, rough handling, or shock and vibration. -
Page 48: Inspection Of Shipping Container
Installation and Setup Procedures WD Scorpio ML320S-AF2 5.1.2 Inspection of Shipping Container Carefully examine the container for obvious shipping damage, such as: holes, signs of crushing, or stains. Notify the carrier and your WD representative if you observe any shipment damage. Always move the shipping container in the upright position indicated by the arrows on the container. -
Page 49: Mounting Restrictions
WD Scorpio ML320S-AF2 Installation and Setup Procedures Mounting Restrictions Important: Your system must be turned off and unplugged before installing your hard drive. 5.2.1 Orientation You can mount the hard drive in the X, Y, or Z axis, depending upon the physical design of your system. -
Page 50: Grounding
Installation and Setup Procedures WD Scorpio ML320S-AF2 5.2.3 Grounding For best results, mount the drive with all four screws in the side grounded to the chassis (positions A, B, C, and D below). You must ground the drive with at least one mounting screw. -
Page 51: Jumper Settings
WD Scorpio ML320S-AF2 Installation and Setup Procedures Jumper Settings It is not necessary to put a jumper shunt on the drive for notebook use. Advanced settings for the drive are as follows: SSC Mode – Spread spectrum clocking feature. Default setting is disabled. -
Page 52: Maintenance
Maintenance WD Scorpio ML320S-AF2 AINTENANCE The hard drive requires no preventative maintenance and contains no user-serviceable parts. The service and repair of WD drives can only be performed at a WD Service Center. Please contact your WD representative for warranty information and service/return procedures. -
Page 53: Technical Support
WD Scorpio ML320S-AF2 Technical Support ECHNICAL UPPORT NORTH AMERICA US/Canada (Central Time) 800.ASK.4WDC Monday - Thursday 9:00 am - 7:00 pm Friday 9:00 am - 5:00 pm Saturday 8:00 am - 5:00 pm EUROPE +31.20.4467651 Central European Time (CET) Monday - Thursday... -
Page 54: Glossary
Glossary WD Scorpio ML320S-AF2 LOSSARY Active LED Status - WD SATA drives support external LED requirements. It provides an activity LED output which is ON during command execution and OFF otherwise. Advanced Format Technology — Technology being adopted by WD and other drive manufacturers to increase media format efficiencies, thus enabling larger drive capacities. - Page 55 WD Scorpio ML320S-AF2 Glossary drive that permits disk sizes greater than 528 MB. Perpendicular Magnetic Recording (PMR) - In PMR, the magnetization of each data bit is aligned vertically rather than longitudinally to the spinning disk. The adjacent bits attract instead of repel (as with bar magnets placed side by side), creating more thermally stable bits.
- Page 56 Index WD Scorpio ML320S-AF2 —I— NDEX Input Voltage Requirements, 8 Installation and Setup, 39 —A— Interleave, 3 Acoustics, 10, 12 Internal Environmental Protection System, 18 Active LED Status, 22 Activity indication, 23 —J— Actuator Type, 4 Jumper Settings, 42 Agency Approvals, 12...
- Page 57 WD Scorpio ML320S-AF2 Index Seek Time, 3 Servo Type, 4 Shock, 8 Specifications, 3 Electrical, 7 Environmental, 8 Mechanical, 6 Performance, 3 Physical, 4 Reliability, 10 Spindle Start Time, 3 Staggered Spinup, 23 System-on-Chip (SOC), 15 —T— Technical Support, 44...
- Page 58 Index WD Scorpio ML320S-AF2 RELEASED 4/7/11 (WD CONFIDENTIAL) 2679-771320-A00...
- Page 59 For service and literature: support.wdc.com www.westerndigital.com Western Digital 800. North America 3355 Michelson Drive, Suite 100 800.832.4778 Spanish Irvine, California 92612 +800.6008.6008 Asia Pacific U.S.A.. 00800.27549338 Europe (toll free where available) +31.880062100 Europe/Middle East/Africa 2679-771320-A00 Apr 2011 WD CONFIDENTIAL...
Need help?
Do you have a question about the Scorpio ML320S-AF2 and is the answer not in the manual?
Questions and answers