Western Digital WDE4360, WDE2170 manual Internal status

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WD Enterprise WDE2170/WDE4360

Glossary

Formatted Capacity - Actual capacity available to store data in a mass storage device. The formatted capacity is the gross capacity minus the capacity taken up by the overhead data required for formatting the media.

Functional Integrity Testing (FIT) - Suite of tests Western Digital performs on all its drive products to ensure compatibility with different hosts, operating systems, adapters, application programs, and peripherals. This testing must be performed before the product can be released to manufacturing.

Hard Error - Error that cannot be corrected by the error recovery process.

Host Transfer Rate - Speed at which the host computer can transfer data across the SCSI interface.

Landing Zone - Non-data position on the disk's inner cylinder where the heads land when power is turned off.

Latency - Average time delay between the head arriving on track and the data rotating to the head. (Calculated as one-half the revolution period).

Logical Address - Storage location address that may or may not relate directly to a physical location. The logical address is used when requesting information from a controller. The controller performs a logical-to-physical address conversion and retrieves the data from a physical location in the storage device.

MB (Megabyte) - Western Digital defines a megabyte as 1,000,000 bytes.

MTBF (Mean Time Between Failures) - Mean number of life units (in 106 hours), during which all parts of the drive perform within their specified limits, during a particular measurement interval under stated conditions.

Recoverable Error - Read error, transient or otherwise, that can be corrected by ECC recovery or by re-reading the data.

RPM (Revolutions per Minute) - Rotational speed of the media (disk), also known as the spindle speed. Hard drives spin at one constant speed. Disk RPM is a critical component of hard drive performance because it directly impacts the rotational latency of the disk transfer rate.

SCA-2- The Single Connector Attach (SCA-2) interface incorporates a grounding contact, blindmate connector, direct plug misalignment tolerance, ESD protection, hot swap capability, and backplane connector options. SCA is commonly called the 80-pin connector.

SCSI Configure Automagically (SCAM) - Allows users to attach SCSI devices without worrying about configuration options.

SCSI-1- The Small Computer System Interface (ANSI document X3.131-1986).

SCSI-2- The Small Computer System Interface (ANSI document X3.131-1994).

SCSI-3- The ANSI X3T10 Working Documents (under development).

SCSI device - Host computer adapter, peripheral controller, or an intelligent peripheral that can be attached to the SCSI bus.

Sector - A packet of data (usually 512 bytes long).

Seek Time - A measure (in milliseconds) of how fast the hard drive can move its read/write heads to a desired location.

Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.) - Monitors a drive’s

internal status.

4079-001045 Rev. B

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Contents Technical Reference Manual Western Digital 4079-001045 Rev. B Released Escription and F Eatures Installation and Maintenance List of Figures List of Tables General Description Description and FeaturesProduct Features Advanced FeaturesData Buffer of 1 Megabyte OptionsSpecifications Performance SpecificationsPhysical Specifications WDE2170 Physical SpecificationsWDE4360 Physical Metric Characteristic Dimension Tolerance Physical DimensionsDimension Inches Millimeters Mechanical Specifications067 069 Drive Axis Definition Released MountingWDE2170 Current Requirements and Power Dissipation WDE2170 +12V Current Profile Current ProfileRipple Input Voltage RequirementsBring-Up Sequence +12 VDC +5 VDCShock Environmental Specifications Shock and VibrationVibration Operating Vibration Temperature and Humidity Temperature and HumidityCooling Component Location MaximumAtmospheric Pressure Mode Typical MaximumAcoustics AltitudeDrive Baseplate Thermocouple Location Pcba Thermocouple Locations 4079-001045 Rev. B Released Agency Approvals Product Safety Reliability SpecificationsElectromagnetic Compatibility EMC SCSI-3 SPI Compliant Compatibility TestingEmbedded Servo Control Read Caching and Pre-FetchMedia Defect Management Command Queuing and ReorderingMicrocode Download Reed Solomon ECC On-the-FlyHeaderless Format Zoned RecordingLED Support Option Block Functions Error Recovery Operations Hot Plug/Unplug Support Scsi Interface and Command SET Pin Designation Physical CharacteristicsOption Block Option Block Pin Assignments OPTION/SIGNAL Pins Configuration NotesScsi ID Jumper Table Pins 7 Pins 5 Pins 3 Pins 1Scsi Connectors Power Connectors and CablesScsi Physical Interface Drive Outline Pin Scsi ConnectorSignal Name Signal Name Pin NumberIV E O U T L in E SINGLE-ENDED Scsi Connector Differential Scsi Connector Pin Scsi Connector Pin Numbers Pin SCA-2 Scsi ConnectorSINGLE-ENDED Scsi Connector Electrostatic Discharge ESD Protection Installation and MaintenanceMaintaining the Drive Technical Support Glossary Internal status Glossary WD Enterprise WDE2170/WDE4360 Interface Matrix Appendix A. U Nderstanding the Model NumberIndex WD Enterprise WDE2170/WDE4360 Index H0300 4/97

WDE4360, WDE2170 specifications

Western Digital, a leader in data storage, has introduced innovative products like the WDE2170 and WDE4360 drives, which showcase their commitment to cutting-edge technology and reliability. These models are designed for various applications, from personal computing to larger enterprise solutions.

The WDE2170 is a 2TB hard drive positioned for consumers who require substantial storage for multimedia files, documents, and applications. Its interface features a SATA III connection, providing a robust data transfer rate that can reach up to 6Gbps. This speed ensures that users can access their files quickly and efficiently. Notably, the WDE2170 is equipped with a large cache size that enhances its performance during read and write operations. This makes it an excellent choice for gamers and content creators who need rapid access to their files.

On the other hand, the WDE4360 stands out as a 4TB offering, aimed at professionals and businesses requiring higher capacities. It utilizes advanced data management technologies to ensure data integrity and durability. With a focus on security features, the WDE4360 includes built-in encryption options to protect sensitive information. This model also utilizes advanced error recovery technology, which is vital for maintaining data integrity in RAID configurations or server setups.

Both models are built using Western Digital’s proprietary technologies that emphasize reliability and longevity. The drives are designed to withstand rigorous usage scenarios, making them perfect for environments where data access and protection are paramount. Additionally, these drives have low power consumption, which can help reduce operational costs, especially in larger installations.

The overall design of these drives is tailored for optimal performance and heat dissipation, ensuring that they can function effectively even under heavy loads. Western Digital's commitment to quality means that both the WDE2170 and WDE4360 undergo stringent testing processes to meet high standards of reliability before reaching the consumer market.

In conclusion, the Western Digital WDE2170 and WDE4360 are exceptional storage solutions, providing consumers and businesses with the speed, capacity, and reliability they need. These drives exemplify Western Digital's dedication to innovation and quality in the ever-evolving world of data storage. As data requirements continue to grow, these drives are sure to meet the demands of a diverse array of users.
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