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Western Digital Tegile T4860
Hybrid Flash Storage Array for Balanced Performance and Capacity

Western Digital Tegile T4860

Western Digital Tegile Hybrid Storage Array
USA: FREE Ground ShippingWestern Digital Tegile T4860 Hybrid Flash Storage Array
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Performance of Flash at the Price of Disk

Western Digital Tegile offers an extensive line of hybrid arrays as part of the IntelliFlash portfolio. Western Digital Tegile hybrid storage arrays leverage the performance of flash, the density of hard disks and the rich features of IntelliFlash™ operating system to deliver a compelling storage platform that accelerates a wide variety of workloads in the enterprise.

Fully redundant with active/active controllers, these arrays are built for enterprise datacenters with resilience, data availability and data protection in mind. With Western Digital Tegile hybrid arrays, you no longer have to compromise between performance, capacity and cost for accelerating and protecting your enterprise applications.


Architected for Performance and Capacity

IT departments are increasingly challenged to deliver storage performance, scalability and capacity with high efficiency and reduced costs. At the same time, application workloads such as server virtualization, virtual desktops (VDI), online transaction processing (OLTP) and real-time analytics are further driving demand for storage infrastructure that can keep up.

Western Digital Tegile IntelliFlash storage arrays help IT boost storage utilization and efficiency and deliver unmatched storage savings and performance.

Hybrid and All-Flash in one storage system

Whether you need the balanced performance and high capacity of a hybrid array or the sustain high performance of an all-flash array, Western Digital Tegile’s flash storage arrays can satisfy any and all of these requirements cost effectively.

Regardless of which system you choose, Western Digital Tegile provides the same operating software, same feature set and same experience across our entire product line.


IntelliCare Cloud Analytics

Save time on storage administration and maximize the uptime and efficiency of your Western Digital Tegile storage arrays with IntelliCare™.

Driven by cloud-based analytics and backed by a team of storage experts, IntelliCare enables you to quickly and easily monitor the health, performance and usage of all your Western Digital Tegile storage arrays, predict future requirements, and detect problems before they develop into serious issues.

IntelliFlash Architecture

Western Digital Tegile’s flash storage arrays are powered by IntelliFlash. This fast, flexible software architecture is designed to leverage different grades of storage media—hard disk, high-performance flash, high-density flash, etc.—in a single storage array

IntelliFlash understands the inherent characteristics of different storage media and intelligently manages the placement of data to deliver optimal performance (speed and latency) with the best possible economics. It also includes advanced data services, multiprotocol support, and flexible management capabilities, enabling you to significantly shrink your storage footprint, maximize uptime, consolidate workloads, and simplify storage administration.


Data Security

Keep your data safe and secure. Data security is provided using 256-bit AES encryption of data at rest. IntelliFlash delivers in-line encryption of data on SSDs and hard disk drives with unnoticeable impact on performance. Key management required for encryption is performed natively in the system without user intervention.


Built-in Business Continuity

Take instantaneous point-in-time snapshots that are both VM-aware and application-consistent. For disaster recovery, replicate snapshots to a remote site. Replication transmits only changed data to reduce traffic over the WAN.


NAS and SAN from the Same Array

Enjoy the flexibility protocol of choice in how your storage is connected to your servers. No more silos of storage in your data center. FC, iSCSI, NFS, CIFS SMB 3.0 are all supported.


Up to 10:1 Data Reduction

In-line compression and de-duplication on SSD and hard disk throughout array. This helps significantly reduce storage acquisition and operational cost. Redundant operating system images in a virtual server platform are reduced to a single instance stored in flash. Hundreds or thousands of persistent VDI instances are shrunk down to one single boot image that can launch in seconds.


Storage Simplified

Single-click provisioning through application-optimized aware templates and integrated backup and replication without complex backend software. Monitor your storage infrastructure with your own Management Tool using SNMP.


Purpose-built for Virtualization

One-click virtual machine optimized storage creation enables hundreds of virtual machines and desktops to be deployed in minutes, not hours. VM-aware management tools let storage be provisioned, monitored and managed in virtual machine granularity – LUNs, file systems and RAID groups are a thing of the past for virtualization administrators.


T4860 Dimensions

Model T4100 T4200 T4630 T4730 T4760 T4860
Flash as % of Total Usable Capacity 10% Flash 30% Flash 60% Flash
DRAM Memory 256GB 464GB 240GB 464GB 464GB
Raw Flash Storage (Min)* 1.5TB 5.8TB 17.3TB 34.6TB 24.5TB 51.8TB
Raw Disk Storage (Min)* 26TB 52TB 52TB 104TB 26TB 52TB
Effective All-Flash Capacity** (Min / Max) N/A N/A 43TB - 939TB 86TB - 804TB 86TB - 983TB 173TB - 1065TB
Effective Hybrid Capacity** (Min / Max) 60TB - 780TB 120TB - 840TB 120TB - 720TB 240TB - 720TB 60TB - 660TB 120TB - 720TB
Form Factor (Rack Units) 3U 5U 8U 5U
Protocols SAN Protocol Support (iSCSI, Fibre Channel), NAS Protocol Support (NFS, CIFS, SMB 3.0)
Data Services Inline Deduplication, Compression, Thin Provisioning, Snapshots, Remote Replication, Application Profiles
Management Web browser, plug-ins for VMware vCenter and Microsoft System Center VM Manager, SSH, IP-KVM, SNMP
Cloud Management IntelliCare™ cloud analytics and proactive support available with Standard and Premier support programs
Data Security Inline 256-bit AES Encryption for Data-at-Rest
Redundancy No single point of failure, Active-Active High Availability Architecture, Dual-ported storage media

Accelerating Reads & Writes with IntelliFlash:

Western Digital Tegile Intelligent Flash Arrays enable enterprises to strike the perfect balance between performance and capacity. Each array is powered by the IntelliFlash™ software architecture. IntelliFlash gives you the flexibility to use all flash or a mixture of flash and disk. The software architecture intelligently manages the different storage media to deliver optimized performance and capacity.

This technology brief explains how IntelliFlash accelerates the read and write process within a Western Digital Tegile hybrid array.

Performance & Capacity Layers

Within each Western Digital Tegile array, there is a performance storage layer and a capacity storage layer. In the performance layer, there's a combination of DRAM and flash. This gives you the high performance and low latency you need for your virtual server, VDI, messaging, collaboration, and database applications. The capacity layer takes full advantage of the evolution in media densities. It accommodates spinning hard disk drives today and is designed to be flexible enough to accommodate emerging storage media as they become available.

Performance & Capacity Layers

Dual-Controller Architecture

All Western Digital Tegile arrays come with dual controllers. Multiple storage pools can be created within the Western Digital Tegile array. These storage pools can be all-flash (FlashVols) or a combination of flash and hard disk. A storage pool at any given point in time is associated with one of the two controllers. Both controllers can be used simultaneously by associating different pools to each controller.

In the event of a controller failure, or for live software upgrades, the associated pools can be failed-over transparently—with no perceived outage.

Dual-Controller Architecture

Accelerating Writes

All writes to the Western Digital Tegile array are synchronous. The moment the data is received, it's saved to a persistent "Write Cache" in flash and an acknowledgement is sent back to the host. Round trip, that whole process takes a millisecond or less.

Accelerating Writes

Metadata Acceleration

To optimize the IO path, IntelliFlash dedicates a portion of the performance layer exclusively for metadata. This includes block pointers, deduplication signatures, compression type, and the like. All of the metadata is organized, aggregated, and remains in this dedicated, persistent section within performance layer. This performance- optimization technique stands in stark contrast to traditional storage systems, which intersperse metadata with the rest of the data on disk. Over time, as data inevitably gets modified, deleted, and rewritten, the metadata becomes very fragmented, which negatively impacts performance.

Metadata Acceleration

Data Reduction

IntelliFlash also performs inline compression and deduplication. These data reduction techniques can not only shrink your storage footprint by up to 90 percent, they also act as performance multipliers by freeing up space in the performance layer for faster reads and writes.

Each data block is compressed and redundant data blocks are removed before they are written to disk. You can choose the compression rate and turn on/off deduplication at the volume level to strike the perfect balance between speed and capacity.

Data Reduction

The resulting unique data blocks are coalesced and streamed sequentially to the capacity layer. After that happens, the data is removed from the "Write Cache" and the process is complete.

Data Reduction

Accelerating Reads

Intelligent caching algorithms keep the most frequently accessed data in the Read Cache, which resides on DRAM and flash. These caching algorithms are optimized for various I/O patterns and dynamically adapt to differing media latencies across multiple levels of cache.

There are two levels of Read Cache in a Western Digital Tegile array. Both are self-tuning. The first level is the primary DRAM cache. This is smaller and faster. The second level resides on flash.

The array proactively fetches and populates the read cache with the hottest data. This all happens dynamically — in real time using intelligent, pre-fetch algorithms — without user intervention.

In most customer cases, the cache-hit ratio is well over 90%. That means that most read requests are satisfied from DRAM and flash.

Accelerating Reads

Western Digital Tegile Intelligent Flash Arrays use IntelliFlash to intelligently manage different types of media to deliver incredibly fast performance while also maximizing capacity and keeping your storage costs in check. For more information on how IntelliFlash can help accelerate your applications, check and visit IntelliFlash page.


Flash Storage Arrays - All-Flash vs Hybrid

What is the deal with Flash?

Flash is dramatically faster and uses less energy and space than traditional disk-based storage and is perfect for those applications that require performance. However disk-based storage isn't going away just yet and is still great for those applications where low-cost and high capacity trumps performance.


All-Flash can be expensive but in applications where performance and latency are critical, All-Flash is the way to go.


A hybrid flash system that mixes flash with low cost disks is ideal for most enterprise workloads.


Traditional disk-based storage is low cost but has high latency, low IOPs and uses more energy and rackspace as capacity grows.

What is the deal with latency?

Really important when you need fast reliable performance.


Compromise Nothing

Western Digital Tegile Systems offers both an All Flash and Hybrid storage solution so you won't hear us taking a stand on one versus the other. We work with our customers to understand their application workloads and storage requirements before making a recommendation on whether All-Flash or Hybrid is the ideal solution.

The All-Flash Solution
Western Digital Tegile All-Flash Storage Arrays

Western Digital Tegile All-Flash Storage Arrays

Western Digital Tegile All-Flash Storage Arrays feature high density enterprise flash solid state drives designed to support missioncritical applications that require extremely high performance at low latency for extend periods of time.

The Hybrid Solutions
Western Digital Tegile Hybrid Storage Arrays

Western Digital Tegile Hybrid Storage Arrays

Western Digital Tegile Hybrid Flash Storage Arrays deliver a perfect balance of data management, performance and economics by providing a flexible amount of high density flash solid state drives and metadata accelerated high density hard disk storage.


Western Digital Tegile Hybrid Storage Array
USA: FREE Ground ShippingWestern Digital Tegile T4860 Hybrid Flash Storage Array
Contact us for pricing!