Affordable Enterprise-Class Storage
The Promise VTrak E-Class RAID subsystem is a fully redundant high performance RAID solution developed to meet the needs of mission critical enterprise and creative applications. At the heart of the Promise VTrak E-Class RAID subsystem is a mature RAID engine. The hardened RAID code is the central technology that controls how user data is stored on a group of hard drives. With more than 13 years and four generations of code, the Promise RAID engine delivers cutting-edge performance and data integrity features that rival all competitors in its class.
The Promise VTrak E-Class RAID subsystem provides flexible configuration and can scale along with your business. You can start with a four drive configuration and scale the RAID subsystem with additional SATA drives, high performance SAS drives, or an expansion units as your requirements change.

Apple Xsan 2 and Final Cut Studio 2 Qualified
Providing industry leading performance, reliability and scalability to some of the world’s most demanding storage environments, VTrak E-Class RAID subsystems are qualified for use with Apple Xsan 2 and Final Cut Studio 2. VTrak E-Class features dual active/active RAID controllers with automatic Fail over/Fail back capabilities and 4Gb Fibre Channel connectivity, The Promise VTrak E-Class RAID subsystem delivers multiple streams of uncompressed high def video without dropped frames. The unique integrated VTrak E-Class products sold through the Apple online Store and through Apple Authorized Resellers have been tested by Apple to ensure the performance and reliability you expect from an Apple qualified product.

Active/Active Controllers and I/O Modules
The advanced subsystem design includes fully redundant, active/active hot-swappable controllers and load balanced power and cooling units. All system components are monitored for continuous operation and send instant user notification in case of failure or malfunction. The active/active RAID controllers balance the workload across the data paths in normal operation and provide redundant data paths and high availability in the unlikely event of a controller failure.

E-class rear view
VTrak E-Class RAID Subsystem (rear view)

4Gb Fibre Channel SAN Performance and Reliability
Dual 4Gb Fibre Channel host interface ports per controller provide connectivity for direct attached storage and widely deployed storage area networks. With full auto negotiation functionality VTrak E-Class RAID subsystems are perfect for adding capacity to existing Xserve RAID installations and creating new high performance 4Gb per second volumes under Xsan.

SAS and SATA Hard Drive Support
Supporting both SAS and SATA drives allows deployments of tiered storage on a single flexible storage platform. Each standard 3U 19" rack unit supports up to sixteen 15,000-rpm 3.5" SAS or 7,200-rpm SATA 3Gb/s drives. If your application requires large sequential data transfers, like video editing, SATA drives are a perfect fit. If your application requires the efficient random access of many small files such as database and web transactions then SAS drives would provide optimum performance.

VTrak Expansion Chassis (rear view)

VTrak Expansion Chassis
The Promise VTrak E-Class RAID subsystem supports the addition of 16-bay J-Class expansion chassis, doubling the storage capacity . Dual I/O modules with 4x wide SAS interconnects provides redundant connectivity, and 12Gb/s bandwidth. The expansion chassis utilizes the same mechanical design as the VTrak E-Class RAID subsystem, allowing it to share the same key components.

With large VTrak deployments worldwide, enterprise users have come to rely on Promise Technology to protect their valuable data. The Promise VTrak E-Class supports attachment of up to four J-Class expansion chassis, providing 80TB of raw capacity using 1TB SATA drives for high capacity storage applications like tiered storage, disk-to-disk backup or archive.

Easy to Install and Manage
The VTrak E-Class RAID subsystem features Bonjour discovery and configuration using an embedded browser-based management interface, eliminating the need to install additional software. Simply open your browser and click on the VTrak unit you would like to manage. An easy to use guided setup allows novice users to create and provision the storage in just a few minutes. The VTrak's rich feature set gives advance users powerful tools to rapidly deploy multiple units tuned for applications like Xsan 2 and Final Cut Studio 2

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VTrak E-Class RAID subsystem Features

» Mac OS X, Mac OS X Server,
Xsan 2 and Final Cut Studio 2
qualified storage
» Dual active/active RAID Controllers
(Apple MPIO capable)
» Dual 4Gb/s Fibre Channel ports
per controller
» SATA or SAS hard drives
(pre-installed & tested)
» RAID Levels 0, 1, 1E, 5, 6 ,10, 50, 60
» Optional Expansion Chassis
for up to 80 drives of high
capacity storage

Product Specifications
» Frequently Asked Questions
» VTrak E-Class RAID Subsystem
» VTrak Expansion Chassis
» Product Keynote Slides

» Quick Install Guide
» User Manual

Promise Support Resources
» Service Release 2.4
» Promise Support
» VTrak E-Class Best Practice Guide
» Promise Knowledge Base
» Apple Knowledge Base
» Promise ServicePlus Onsite Service

Case Studies
» Super Capers

Customer Testimonials


"The combination of the E and J series is a home run. The cost savings is obvious when side by side with other drive vendors, and the performance is outstanding... More


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Support and Warranty
Support for the Promise VTrak E-Class RAID Subsystem connected to Apple Mac hardware is only available when the configurations are purchased fully integrated from Apple. Please click here for frequently asked questions about the supported Apple configurations

Promise and Apple support organizations work together to solve problems. A shared support database allows support tickets to be escalated across organizations. Mutual service level agreements between Apple and Promise allow customers to install VTrak E-Class units with the confidence that any issues they encounter will be resolved quickly and easily.

For details about the specific supported part numbers, visit the apple store at:

Supported environments running on Apple Mac hardware:

  • Operating systems: Mac OS X, Mac OS X Server, versions 10.5.2 or later
  • Apple Qualified Applications: Xsan 2, Final Cut Studio 2

The Promise 3-Year Limited Warranty backs each VTrak with 24/7 telephone and email support. When our support confirms a failure in the field, advanced replacement parts are always available to eliminate down time. For more information visit

If higher levels of service are required Promise offers Promise ServicePlus on-site hardware replacement service. The Promise ServicePlus onsite plan provides three years of rapid response onsite hardware parts replacement, available 24-hours a day, seven days a week. For more information visit

Promise Technology Inc.
Promise is proud to support Apple customers in their ongoing pursuit of excellence. The Mac platform has provided a solid foundation for cutting-edge creative expression for more than twenty years. Promise is proud to provide reliable high performance Apple-qualified VTrak E-Class RAID subsystems to satisfy the demanding requirements of Apple's data intensive Xsan and Final Cut Studio installations.