Milestone Reinforces Continued Success of the Sun and Dot Hill Relationship

CARLSBAD, Calif., Oct. 3 /PRNewswire-FirstCall/ -- Dot Hill Systems Corp. (Nasdaq: HILL), a market leader in providing flexible storage offerings and responsive service and support to OEMs and system integrators (SIs), today announced a major milestone in its relationship with Sun Microsystems with the shipment of the 100,000th unit of the Sun StorageTek(TM) 3000 family of workgroup storage systems.

"Dot Hill's delivery of 100,000 units through Sun is a significant milestone and remarkable for any product in this class," said Dana Kammersgard, president and chief executive officer at Dot Hill Systems. "Sun is a valued strategic partner and we look forward to continuing to provide the company with highly scalable and available storage solutions to continue its leadership in the workgroup storage market."

The Sun StorageTek(TM) 3510 Fibre Channel array was the 100,000th milestone unit and was shipped to New Jersey-based reseller partner Innovativ. Innovativ's proven track record for bringing intelligent solutions to large enterprises has earned the company a ranking of 132 in the VARBusiness 500 in 2005 and the 2005 VARBusiness Top Revenue Generator Award.

The milestone is based on gross units shipped. All total, the 100,000 units equate to approximately 103 petabytes of storage capacity -- equivalent to more than 25 billion pages of text, or the contents of two billion four- drawer filing cabinets.

The Sun StorageTek 3000 workgroup storage family is based on Dot Hill's SANnet II offering, designed to address the needs of the critical workgroup market segment. Dot Hill's SANnet II is extremely rugged and is certified to Network Equipment Building Systems (NEBS) Level 3 and MIL-STD-810F standards to assure high availability. Downtime due to component failures is virtually eliminated as the compact, scalable storage systems have redundant hot- swappable field replaceable units. These products are targeted at small to medium application deployments and workgroup network infrastructure running with multiple operating environments.

Sun currently OEMs Dot Hill's complete line of SANnet II RAID storage solutions including the SANnet II U320 and SANnet II FC-G, which are both RoHS- and WEEE-compliant.

"Dot Hill storage systems provide Sun and our customers with leading-edge entry-level array technology," said Douglas Murray, executive director of Storage Alliances, Sun Microsystems. "Dot Hill is a significant strategic partner and we look forward to the continued success of the relationship."

Dot Hill is the market leader in providing flexible storage offerings and responsive service and support to OEMs and system integrators, from engagement through end-of-life. Founded in 1984, Dot Hill has more than two decades of expertise in developing high-quality, competitively priced storage products. Focused on delivering global 24 X 7 X 365 technical support, the company has more than 100,000 systems in use worldwide and numerous OEM and indirect partners. With its patented technology and award-winning SANnet(R) family of storage and its Dot Hill Storage Services, Dot Hill makes storage easy. Headquartered in Carlsbad, Calif., Dot Hill has offices in China, Germany, Israel, Japan, Netherlands, United Kingdom and the United States. More information is available at www.dothill.com.

Dot Hill, the Dot Hill logo, SANnet, SANpath, SANscape, RIVA and RIO Xtreme are trademarks of Dot Hill Systems Corp. All other products and names mentioned herein are trademarks or registered trademarks of their respective owners.

Sun, Sun Microsystems, the Sun logo, StorageTek, and The Network Is The Computer are trademarks or registered trademarks of Sun Microsystems, Inc. in the United States and other countries.

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 future success of Dot Hill's relationship with Sun including the volume of future shipments and the actual performance and downtime of members of the Sun StorageTek 3000 workgroup storage in particular environments. The risks that contribute to the uncertain nature of the forward-looking statements include unforeseen technological, logistical or operations issues. 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 contained in this press release speak only as of the date on which they were made. Dot Hill undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made.

SOURCE Dot Hill Systems Corp.

CONTACT: Erin Lutz of Lutz PR, +1-949-293-1055, erinlutz@cox.net, for
Dot Hill Systems Corp.