Adaptec MaxIQ(TM) SSD Cache Performance Solution Increases Performance for Japan's Largest Server Farm

A.T. WORKS Gains Significant Performance Increases for Web Applications

MILPITAS, California, March 30, 2010 - Adaptec, Inc. (Nasdaq: ADPT), the global leader in I/O innovation, today
announced that its MaxIQ SSD Cache Performance Solution has been implemented
by A.T. WORKS, Inc., Japan's premier Internet services provider and manager
of the country's largest server farm.

A.T. WORKS turned to Adaptec's MaxIQ SSD Cache Performance Solution after
searching for an affordable solid state disk-based (SSD) Web and database
server solution for those customers dissatisfied with performance offered by
SATA or SAS-based hard disk drive (HDD) arrays. Ideal for data centers
running applications with high "read" operations such as Web serving, file
serving, and databases, the A.T. WORKS solution uses customised Intel(R) SSDs
used as cache with Adaptec MaxIQ SSD Caching Software, plus Adaptec RAID 2405
and Adaptec RAID 5405 Unified Serial(R) controllers to create
high-performance hybrid arrays made of SSDs and HDDs. The implementation of
the Adaptec MaxIQ solution at A.T. Works doubled the performance of SATA HDD
RAID 1 configurations with static Web pages, and significantly outperformed
SAS HDD-only configurations with dynamic Web pages.

"We had been looking for a cost effective way to add SSD components to
our servers for quite a while, but SSD capacity is less than that of an HDD
and the relative cost per gigabyte is much higher," said Takuji Ikeda of A.
T. WORKS' Engineering Division. "With Adaptec MaxIQ, we've been able to
create a hybrid solution of SSDs and HDDs to meet growing customer demands
for large capacity, high-performance storage solutions at an affordable
price."

After seeing the results, A.T. WORKS now encourages its customers
currently using Adaptec Series 5 and Series 2 Unified Serial(R) storage
controllers to upgrade with Adaptec MaxIQ. With 9,000 hosted specialised
servers, A.T. WORKS relies on Adaptec MaxIQ, and the included Adaptec Storage
Manager(TM), a centralised interface to enable, disable, and configure cache
levels, to provide the best performance possible for its customers.

About Adaptec MaxIQ SSD Cache Performance Solution

The Adaptec MaxIQ SSD Cache Performance Solution addresses the needs of
I/O intensive data centers by creating high-performance hybrid arrays -
storage arrays that use both SSDs and HDDs - to deliver up to five times the
I/O performance of HDD-only arrays and up to 50 percent savings in capital
and operating costs.

The Adaptec MaxIQ solution features SSDs used as cache, plus MaxIQ SSD
Caching Software. The software introduces a patent-pending Learned-Path
algorithm that alleviates the bottleneck that can occur between server
processors and hard drives by copying frequently-read data directly into an
optimised SSD cache pool for faster retrieval in future requests. MaxIQ also
updates "hot" cached data on subsequent writes to the same blocks to maximize
storage efficiency.

About Adaptec

Adaptec, Inc. (Nasdaq: ADPT) provides innovative data center I/O
solutions that protect, accelerate, optimise, and condition data in today's
most demanding data center environments. Adaptec products are used in IT
environments ranging from traditional enterprise environments to fast
growing, on-demand cloud computing data centers. The company's products
enable data center managers, channel partners and OEMs to deploy
best-in-class storage solutions to meet their customers' evolving IT and
business requirements. Around the world, leading corporations, government
organisations, and medium and small businesses trust Adaptec technology. More
information is available at www.adaptec.com, on its blog,
storageadvisors.adaptec.com, and at adaptec.com/facebook and
twitter.com/Adaptec_Inc.

Adaptec is a registered trademark and Unified Serial is a trademark in
the United States and other countries. Other company names are trademarks or
registered trademarks of their respective owners. Adaptec disclaims any and
all rights in these trademarks.

    Contact:
    Sara Lee
    Walt & Company for Adaptec
    +1-408-369-7200 ext. 2980
    slee@walt.com

Sara Lee of Walt & Company, +1-408-369-7200 ext. 2980, slee at walt.com, for Adaptec