Western Digital manual Glossary WD Enterprise WDE2170/WDE4360

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Glossary

WD Enterprise WDE2170/WDE4360

Servo Burst - Provides positioning information to the actuator arm, usually positioned between sectors or at the end of a track.

Single-ended SCSI - Standard electrical interface for SCSI. Single-ended means an interface with one signal line and one corresponding ground line for each SCSI signal.

Soft Error - Data error that can be corrected by the error recovery process.

Ultra SCSI - Provides 20 MB/s over an 8-bit bus or 40 MB/s over a 16-bit Wide SCSI bus. Known also as Fast-20 SCSI, this feature is most commonly found in SCSI-3 devices.

Unrecoverable Error - Read error that cannot be corrected by an ECC scheme or by re-reading the data when host retries are enabled.

Zoned Recording - Increases the data density on the outer tracks of the drive where most of the sectors are located. This type of recording affords more disk capacity because there can be more sectors on the larger outer tracks than would be possible if the number of sectors per track were constant for the whole drive.

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RELEASED 04-08-97

4079-001045 Rev. B

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Page 49 Page 51
Contents Technical Reference Manual Western Digital 4079-001045 Rev. B Released Escription and F Eatures Installation and Maintenance List of Figures List of Tables Description and Features General DescriptionAdvanced Features Product FeaturesOptions Data Buffer of 1 MegabytePerformance Specifications SpecificationsWDE4360 Physical SpecificationsPhysical Specifications WDE2170 Physical Dimensions Physical Metric Characteristic Dimension ToleranceMechanical Specifications Dimension Inches Millimeters067 069 Mounting Drive Axis Definition ReleasedWDE2170 Current Requirements and Power Dissipation Current Profile WDE2170 +12V Current ProfileBring-Up Sequence Input Voltage RequirementsRipple +12 VDC +5 VDCVibration Environmental Specifications Shock and VibrationShock Operating Vibration Cooling Temperature and HumidityTemperature and Humidity Component Location MaximumAcoustics Mode Typical MaximumAtmospheric Pressure AltitudeDrive Baseplate Thermocouple Location Pcba Thermocouple Locations 4079-001045 Rev. B Released Electromagnetic Compatibility EMC Reliability SpecificationsAgency Approvals Product Safety Embedded Servo Control Compatibility TestingSCSI-3 SPI Compliant Read Caching and Pre-FetchMicrocode Download Command Queuing and ReorderingMedia Defect Management Reed Solomon ECC On-the-FlyLED Support Zoned RecordingHeaderless Format Option Block Functions Error Recovery Operations Hot Plug/Unplug Support Scsi Interface and Command SET Option Block Physical CharacteristicsPin Designation OPTION/SIGNAL Pins Configuration Notes Option Block Pin AssignmentsPins 7 Pins 5 Pins 3 Pins 1 Scsi ID Jumper TableScsi Physical Interface Power Connectors and CablesScsi Connectors Pin Scsi Connector Drive OutlineSignal Name Pin Number Signal NameIV E O U T L in E SINGLE-ENDED Scsi Connector Differential Scsi Connector Pin SCA-2 Scsi Connector Pin Scsi Connector Pin NumbersSINGLE-ENDED Scsi Connector Maintaining the Drive Installation and MaintenanceElectrostatic Discharge ESD Protection Technical Support Glossary Internal status Glossary WD Enterprise WDE2170/WDE4360 Appendix A. U Nderstanding the Model Number Interface MatrixIndex 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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