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Dot Hill Awarded Three Patents for R/Evolution Storage Architecture Technologies

Wednesday, October 22, 2008

Carlsbad, CA -- Dot Hill Systems Corp., a world-class provider of entry-level and midrange storage innovations for OEMs and system integrators (SIs), today announced that the United States Patent and Trademark Office has recently granted the company three patents pertaining to Dot Hill's line of RAID storage systems employing the company's innovative Rapid Evolution (R/Evolution) Architecture.

These unique technologies, developed by Dot Hill's engineering team at the company's Longmont, Colo. technology center, are part of Dot Hill's growing patent portfolio which enables the company to continue to provide unique products to a growing list of OEM customers. To date, the company has been awarded 38 patents.

The newest patents granted to Dot Hill include:

  • U.S. patent 7,340,555, "RAID System for Performing Efficient Mirrored Posted-Write Operations" -- This patent pertains to Dot Hill's SimulCache data caching architecture which leverages redundant RAID controllers, thus eliminating the performance degradation associated with conventional cache mirroring. The implementation of a high-speed dedicated PCI-Express bus streamlines write performance, resulting in superior overall system responsiveness to drive faster application throughput in database-related deployments.
  • U.S. patent 7,380,115, "Transferring Data using Direct Memory Access" -- This patent pertains to a method of improving controller performance by consolidating RAID functions into hardware and adding advanced memory controller technology.
  • U.S. patent 7,380,055, "Apparatus and Method in a Cached RAID Controller Utilizing a Solid State Backup Device for Improving Data Availability Time" -- This patent pertains to Dot Hill EcoStor, an environmentally friendly "green," battery-free alternative that leverages a combination of super capacitors and compact flash technology for non-volatile cache memory. With up to a 10-year life span, EcoStor practically eliminates service calls for battery replacement, new battery inventory management, and the issues of battery disposal, as well as the periodic replacement downtime associated with batteries. Additionally, it offers an improved customer experience upon installation or power restore as it does not require lengthy battery charging time. The array operates in high-performance write-back cache mode within minutes of installation, versus hours with batteries.

"OEMs look to Dot Hill for innovative 'out-of-the box' solutions that solve their customers' storage challenges and provide a competitive advantage to our OEM partners," said Jim Kuentzel, senior vice president of Engineering for Dot Hill. "These latest additions to our ever-expanding patent portfolio are a testament to the expertise of our seasoned engineering team."

Dot Hill R/Evolution Storage Architecture Gives OEMs a Competitive Advantage

The highly modular, highly dynamic Dot Hill R/Evolution Architecture is designed to rapidly evolve and support OEM technology, enabling OEMs to quickly achieve sustainable competitive advantage in the volume storage market. The R/Evolution Architecture delivers the high levels of performance, storage density, time-to-market leadership and -- most importantly -- configuration flexibility required by volume storage customers. Using modular and bladed components, the R/Evolution Architecture provides OEMs with a "configure-to-product" model (not just "configure-to-order") that lets them customize volume storage market solutions quickly, easily and precisely. This unique model revolutionizes how OEMs bring storage products to market by ensuring opportunities for product differentiation, even between different companies that simultaneously OEM products from Dot Hill.

About Dot Hill

Delivering innovative technology and global support, Dot Hill empowers the OEM community to bring unique storage solutions to market, quickly, easily and cost-effectively. Offering high performance and industry-leading uptime, Dot Hill's RAID technology is the foundation for best-in-class storage solutions offering enterprise-class security, availability and data protection. The company's products are in use today by the world's leading service and equipment providers, common carriers, advanced technology and telecommunications companies as well as government agencies. Dot Hill solutions are certified to meet rigorous industry standards and military specifications, as well as RoHS and WEEE international environmental standards. Headquartered in Carlsbad, Calif., Dot Hill has offices and/or representatives in China, Germany, Japan, United Kingdom and the United States. For more information, visit us at

Certain statements contained in this press release regarding matters that are not historical fact are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act. Because such statements are subject to risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements. Such statements include the continued availability or performance of Dot Hill products or product features, any positive effect on Dot Hill business due to the issuance of any patent, Dot Hill's ability to continue to receive patent protection, and the future value of any Dot Hill patent. The risks that contribute to the uncertain nature of the forward-looking statements include: unforeseen technological, intellectual property, supply or engineering issues and changing customer preferences. However, there are many other risks not listed here that may affect the future business of Dot Hill, as well as the forward-looking statements contained herein. To learn about such risks and uncertainties, you should read the risk factors set forth in Dot Hill's public filings with the SEC, including the Forms 8-K, 10-K and 10-Q most recently filed by Dot Hill. All forward-looking statements speak only as of the date on which they were made. Dot Hill undertakes no obligation to update such statements to reflect future events that may occur or circumstances that may exist.

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