Dot Hill Selects PMC-Sierra's maxSAS Storage Solutions for Its 2000 and 5000 Series RAID Storage Systems

Business Wire, Nov 19, 2007

PMC-Sierra's SAS Expanders and SATA Active/Active Multiplexers Enable Dot Hill to Deliver Highly Scalable and Reliable SAS/SATA Storage Array Solutions

SANTA CLARA, Calif. -- PMC-Sierra, Inc. (Nasdaq:PMCS), a leading provider of broadband communications and storage semiconductors, today announced that Dot Hill Systems Corp. (Nasdaq:HILL) has selected PMC-Sierra's maxSAS[TM] SAS/SATA chipset solution for its high-performance, modular enterprise storage platforms, the Dot Hill 2730 and 2730 Turbo for the entry level and the Dot Hill 5730 for the midrange. The Dot Hill platforms integrate PMC-Sierra's PM8388 SXP 24x3G SAS expander switch, PM8398 36-port expander switch and PM8307 SPS 3GT intelligent SATA active/active multiplexer, enabling Dot Hill's platforms to provide a scalable and modular enterprise-quality storage solution that delivers greater overall value.

"Dot Hill is pleased to be using PMC-Sierra storage solutions in our 2000 and 5000 Series storage array families," said Dana Kammersgard, president and chief executive officer, Dot Hill. "The technology leadership that PMC-Sierra has shown with their maxSAS product family enables us to continue to provide innovative storage solutions for our OEM and system integrator customers."

The Dot Hill 2730, 2730 Turbo and 5730 demonstrate the superior modular scalability and features, which result in high return on investment and lower total cost of ownership. The modular, dynamic systems are designed to rapidly evolve, enabling OEMs to quickly achieve sustainable competitive advantage in the volume storage market.

"PMC-Sierra is committed to maintaining a leadership position in the rapidly expanding SAS/SATA market," said Mark Stibitz, vice president and general manager of PMC-Sierra's Enterprise Storage Division. "Our engagement with Dot Hill in the 2000 and 5000 Series storage array families demonstrates the successful execution of both companies in bringing the value of SAS/SATA enclosures to the enterprise storage market."

PMC-Sierra's PM8307 SPS 3GT intelligent multiplexer, deployed widely on SATA dual ported adapter cards, provides a single-ported SATA HDD with two simultaneously active host-facing ports. The PM8388 SXP 24x3G 24-port and the PM8398 36-port SAS expander switches with embedded enclosure management deliver increased system performance, higher capacity, scalability and lower the overall bill of material costs. These products provide advanced system-level features such as fault isolation and diagnostics that allow quick and accurate isolation of potential faults, significantly reducing service times and unnecessary drive returns. The end result is substantial cost savings for storage system providers and information technology managers.

About PMC-Sierra's Storage Products

PMC-Sierra is a leading provider of enterprise storage system solutions for networked (SAN/NAS) and server storage applications, with a broad portfolio of Fibre Channel and SAS/SATA protocol controllers, RAID controllers and disk interconnect products. PMC-Sierra's Tachyon[R] protocol controllers, Fibre Channel loop switches, enclosure management controllers and maxSAS expander switches and multiplexers provide the most comprehensive solution for enterprise-class storage systems. Together, these products are providing end-to-end semiconductor and software solutions to the industry's leading storage OEMs and ODMs. For more information, visit http://www.pmc-sierra.com/storage.> 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, Netherlands, United Kingdom and the United States. For more information, visit us at http://www.dothill.com/.> About PMC-Sierra

PMC-Sierra(TM) is a leading provider of broadband communications and storage semiconductors for metro, access, fiber to the home, wireless infrastructure, storage, laser printers and fiber access gateway equipment. PMC-Sierra offers worldwide technical and sales support, including a network of offices throughout North America, Europe, Israel and Asia. The company is publicly traded on the NASDAQ Stock Market under the PMCS symbol. For more information, visit www.pmc-sierra.com.

Resources to Extend Your Product Knowledge and Understanding

PMC-Sierra Storage Products www.pmc-sierra.com/storage