WD s Datacenter Storage Portfolio Capacity Storage Evolved

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1 Capacity storage that lets you push your capacity for innovation. WD and the WD logo are registered trademarks of Western Digital Technologies, Inc. in the U.S. and other countries; WD Ae, WD Re+, WD Re, WD Se, Progressive Capacity, RAFF and StableTrac are trademarks of Western Digital Technologies, Inc. in the U.S. and other countries. Other trademarks may be mentioned herein that belong to other companies. Pictures shown may vary from actual products. Data reflects products in production as of April Not all products may be available in all regions of the world. Product specifications subject to change without notice. Warranties vary by region. Visit support.wdc.com/warranty for details. As used for storage capacity, one gigabyte (GB) = one billion bytes and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. As used for buffer or cache, one megabyte (MB) = 1,048,576 bytes. As used for transfer rate or interface, megabyte per second (MB/s) = one million bytes per second, and gigabit per second (Gb/s) = one billion bits per second Western Digital Technologies, Inc. All rights reserved A04 Apr 2015 WD s Datacenter Storage Portfolio Capacity Storage Evolved

2 WD s Datacenter Storage Portfolio Capacity Storage Evolved WD s Datacenter Storage Portfolio PERFORMANCE TRADITIONAL NEARLINE The pervasive use of mobile devices coupled with the explosive growth of unstructured data has led to To align with the data temperature, datacenters are employing differentiated storage tiers that require storage devices with distinct attributes that cater to the performance, power, and TCO requirements of each tier. Varying application intensity which is determined by workload and environmental demands and varying application performance/power requirements benefit from an innovative portfolio of storage devices that can be custom-fit to the application. WD s datacenter storage portfolio meets the needs of today s modern datacenter with drives that offer the right combination of performance, capacity, power-efficiency and workload capability at the right cost-pergigabyte. WD s datacenter storage portfolio addresses three levels of application intensity high, medium, and low and offers choice of either performance-optimization or power-efficiency, ultimately tailor made for any traditional enterprise or modern datacenter application. With the largest portfolio of capacity storage drives available, WD provides you a choice of tools to build your modern storage infrastructure exactly the way you need it. APPLICATION INTENSITY intense innovation that defines today s modern datacenters. Capacity Storage Evolved POWER EFFICIENCY MODERN NEARLINE

3 WD Re Datacenter Capacity HDD Performance-optimized high-capacity storage for high-intensity applications Performance With advanced technology that delivers consistently high-performance in a multitude of applications, and with ten times the workload capability of desktop drives, WD Re is the workhorse of WD s datacenter portfolio. WD Re is designed for high-availability multi-bay storage arrays such as RAID that demand the most robust storage device available. WD Re s high performance, capacity and reliability make it the no-compromise solution for any heavy application workload, including online analytical processing (OLAP), data warehousing/mining, high-performance computing, high-end NAS/SAN and surveillance systems, and high-availability cloud storage arrays. WD Re is available with a SATA interface for maximum flexibility and compatibility. Highlights: Advanced technology delivers performance optimization Purchase Criteria: Best for: Online analytical processing (OLAP), data warehousing / mining, high-performance Workload Capability Capacity Power Efficiency Cost Per Terabyte Capacity with durability, for any SATA application 3.5-inch form factor With StableTrac to reduce the effects of system-induced vibration Designed and tested for the heaviest workloads and demanding environments computing, high-end NAS / SAN and Maximum capacity 6 TB Rotary Acceleration Feed Forward (RAFF ) surveillance systems, and high-availability Heavy workload capability Ideal combination of capacity, reliability and workload capability for any datacenter application Self Encrypting Drive option available requires performance and capacity without Delivers 24x7x365 enterprise-class reliability 5-year limited warranty cloud storage arrays. If your application compromising reliability and workload capability, WD Re is the right Datacenter storage device for you. 1.2 M hours MTBF

4 WD Re+ Datacenter Capacity HDD Power-optimized high-capacity storage for highavailability deployments Purchase Criteria: Power Efficiency For today s modern datacenter, WD Re+ is the industry s leading low-power drive for a power-optimized, highcapacity storage solution. With 1.2 million hours MTBF, the WD Re+ delivers the durability and 24x7x365 reliability required in tightly-packed and vibration-prone multi-drive systems. Built on an optimal mix of high-capacity, balanced performance and robust design, WD Re+ drives are ideal for heavy workload environments and modern distributed storage subsystems using replication or erasure, hardware and/or software RAID arrays. Highlights: Capacity storage for the modern datacenter with up to 6 TB per drive Optimized for TCO savings providing the industry s best Watt/GB, Performance/Watt, and Max Watts Meets the demands of high-intensity workloads of 550 TB/yr Designed for 24x7x365 enterpriseclass reliability Best for: Workload Capability Capacity Cost Per Terabyte Performance High-reliable cloud storage, high application 3.5-inch form factor intensity workloads and datacenters where Industry s leading lowpower datacenter drive power is critical, WD Re+ delivers massive TCO savings. Designed for highintensity applications Maximum capacity 6 TB With StableTrac to reduce the effects of system-induced vibration Rotary Acceleration Feed Forward (RAFF) Delivers 24x7x365 enterprise-class reliability 1.2 M hours MTBF 5-year limited warranty

5 WD Se Datacenter Capacity HDD High-performance, high-capacity storage for mid-intensity applications Purchase Criteria: Performance With the ideal combination of performance, capacity, and workload capability for many scale-out architectures, WD Se provides a cost-effective enterprise-grade storage solution for large-scale cloud deployments and entry-level servers and storage systems. With its true enterprise-class pedigree and design, WD Se is suitable for enclosures with any number of bays, and is ideal for medium workload applications from entry level servers, to mid-range NAS/ SAN deployments, to bulk cloud storage. WD Se employs Advanced Format and the SATA interface to deliver a cost-effective yet performance-oriented storage option for medium intensity applications. Highlights: Optimized for replicated environments and cost-efficient RAID architectures Best for: Bulk cloud storage, distributed file systems, Capacity Workload Capability Cost Per Terabyte Power Efficiency Cost-effective datacenter SATA storage replicated environments, cost-efficient RAID 3.5-inch form factor architectures, and content delivery networks Maximum capacity 6 TB Feature-set enhanced to enable lower cost per gigabyte (CDNs). If your application deployment Enterprise-class design delivers capacities up to 6 TB performance, yet can accept slightly lower requires enterprise-class features and high reliability to gain a more cost-effective solution, WD Se is the right datacenter storage device for you. Right blend of performance and power Delivers 24x7x365 enterprise-class reliability 1 TB: 800,000 hours MTBF; 4 TB 6 TB: 1,000,000 hours MTBF With StableTrac to reduce the effects of system-induced vibration Rotary Acceleration Feed Forward (RAFF) 5-year limited warranty

6 WD Ae Datacenter Archive HDD The maximum capacity energy-efficient cold storage HDD Purchase Criteria: Cost Per Terabyte The high-reliability, low maintenance, fast response time, and cost structure of HDDs create an opportunity for entirely new markets within the Archive layer. The WD Ae is the first true Archive-optimized HDD. On top of optimizing power set-up by reducing the media spin speed, the drive provides progressive capacities throughout the life cycle. The Progressive Capacity feature enhances the cost/gb optimization by passing on incremental improvements in manufacturing capability to the market. Highlights: Capacity Power Efficiency Workload Capability Performance Cost-effective datacenter SATA storage Optimized to deliver the lowest TCO and VTL replacement. Creating a tier 3 cold/ 3.5-inch form factor 24x7x365 reliability Lowest power consumption HDD; power features optimized for cold online storage archive online storage layer, WD Ae provides Maximum capacity over 6 TB 3-year limited warranty Best in class $/TB HDD the online cold / archive market. Designed Progressive Capacity; enabling capacity growth throughout the life of the product The right Tier 3 HDD to improve TCO goals Best for: Datacenter archive storage, cold storage servers, tape library disk layer, tape library the right balance between capacity, power, performance and cost, to meet the needs of for cold applications where the number of writes is low, and the number of reads is low and rarely if almost never read again.

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