WD Gold
3.5-inch Enterprise Class SATA Hard Drive

Overview

Conquering Tough Workloads With Enterpriseclass HDDs

Available in 1TB to 20TB¹ capacities, these highly reliable solutions for demanding storage environments provide up to 2.5M hours MTBF³, vibration protection technology and a low power draw thanks to HelioSeal technology (for 12TB and above). Specifically designed for use in enterprise-class data centers and storage systems, the WD Gold SATA HDDs deliver the world-class performance you expect from Western Digital hard drives.

¹ As used for storage capacity, one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment.
² Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred X (8760 / recorded power-on hours)). Workload Rate will vary depending on your hardware and software components and configurations.
³ MTBF and AFR: Projected values for model number WD201KRYZ. Final MTBF and AFR specifications will be based on a sample population and are estimated by statistical measurements and acceleration algorithms under typical operating conditions, workload 220TB/year and temperature 40C. Derating of MTBF and AFR will occur above these parameters, up to 550TB writes per year and 60C ambient (65C device temp). MTBF and AFR ratings do not predict an individual drive's reliability and do not constitute a warranty

Specifications

¹ As used for storage capacity, 1GB = 1 billion bytes and 1TB = one trillion bytes. Actual user capacity may be less depending on operating environment.
² Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred X (8760 / recorded power-on hours)). Workload Rate will vary depending on your hardware and software components and configurations.
³ 512e: Advanced Format drive with 512-byte logical sectors and 4K (4096-byte) physical sectors. 512n: Native 512-byte logical and physical sectors.
⁴ This drive is in compliance with the European Union Directive 2011/65/EU and Directive (EU) 2015/863 on the restriction of the use of certain hazardous substances (RoHS) in electrical and electronic equipment.
⁵ Data Transfer Rate: MB/s is 1,000,000 bytes; 1MiB = 1,048,576
⁶ Cache Buffer: Portion of buffer capacity used for drive firmware.
⁷ Operational Power: Random RW 50/50 8KB QD=1 @40 IOPS.
⁸ Idle Power: Based on use of Idle_A
⁹ MTBF and AFR: Projected values for model number WD201KRYZ. Final MTBF and AFR specifications will be based on a sample population and are estimated by statistical measurements and acceleration algorithms under typical operating conditions, workload 220TB/year and drive temperature 40C. Derating of MTBF and AFR will occur above these parameters, up to a maximum workload of 550TB writes at 60C device temp. MTBF and AFR ratings do not predict an individual drive’s reliability and do not constitute a warranty.

Documentation

Download the WD Gold Enterprise-Class SATA HDD Datasheet (.PDF)