Contact:
Bob Christ
TOLIS Group, Inc.
480-505-0488

TOLIS GROUP CERTIFIES BRU SERVER WITH QUALSTAR TAPE LIBRARY'S, DELIVERING DATA PROTECTION FOR MAC OS X, LINUX

BRU Server certified across Qualstar libraries, implementing all advanced tape technologies, including SAIT WORM

SCOTTSDALE, Arizona - June 24, 2004 - TOLIS Group, Inc., developer of the ultra-reliable BRU brand of data protection solutions, today announced the successful completion of compatibility testing of TOLIS' new BRU Server™ data backup and restore software across all Qualstar RLS and TLS-Series tape library models.

The certification provides enterprise users of Linux and Apple(r) Mac OS X a powerful hardware/software combination to protect their corporate-critical data using any of today's most robust tape formats, including AIT, LTO, SDLT and SAIT, including write-once, read many (WORM) SAIT tape.

"The architectural approach of TOLIS and Qualstar complement each other," said Tim Jones, president of TOLIS Group. "Qualstar implements common firmware across their libraries to deliver proven performance; our data backup and recovery solutions are all framed around our proven BRU engine. The integration of our products delivers significant advantages to end-users, including longevity, dependability and rapid data backup and restore."

Linux and Mac OS X are being increasingly deployed in enterprise-level data centers. The combination of TOLIS' BRU backup technology, including volume management and salability, and Qualstar's libraries form a reliable, formidable data protection system. The following "real-world" backup system configuration and performance numbers highlights the point:

• Platform: Xserve G4 1.33GHz UP, 256MB, ATTO UL4S SCSI HBA, Apple FC.
• Xserve RAID, 128MB cache, 2 - 1.01 TB RAID 5 arrays.
• Qualstar TLS-4222 with 2 AIT-3 drives (SCSI).
• BRU software.
• Data mix: 50% office data (text, spreadsheets, applications, documents, etc.) and 50% media files (MP3, ISO images, etc.).
• Performance: Depending on the mix of data, BRU was able to pull data off this configuration's filesystem ranging from 69.7 to 101 MB/Sec\.
• Backing up to a single AIT-3 drive ranged from 13.2 to 15.3 MB/Sec, depending on the profile of the data.
• Backing up to 2 AIT-3 drives simultaneously produced throughputs ranging from 26.5 to 31 MB/Sec.
• At no point was system load greater than 0.5 and BRU's memory usage was less than 56MB of RAM.
• Summary: Efficient, predictable, tape-streaming throughput performance was demonstrated on a "non-juiced," real life system configuration.
• BRU/Qualstar combination exceeded AIT-3 technology manufacturer's performance spec.
• A more robust backup system configuration (faster CPU, multiple processors, faster RAID drives, etc.) and more highly compressible data will result in the realization of yet even higher performance numbers.

Qualstar's RLS- and TLS-Series tape libraries are designed to provide data protection for a wide range of firms, giving them the ability to cost-effectively protect any amount of information, scaling from one terabyte to more than a third of a petabyte. Each library supports Qualstar's 20-year reputation for producing Simply Reliable tape storage products. Last year, Qualstar became the first company to ship libraries equipped with Sony SAIT WORM-enabled tape drives.

"Our reputation is built on delivering tape libraries that efficiently meet our clients' data security requirements; BRU Server complements our libraries, providing powerful solutions for the Linux and Mac server platforms, which continue to gain traction among corporate customers," said Bob Covey, Qualstar's vice president of marketing.

Immutable data storage for regulatory compliance is also a rapidly growing concern among all publicly traded companies. The combination of BRU Server and Qualstar's implementation of AIT and SAIT WORM tape technology delivers cost-effective, scalable solutions. A whitepaper, "BRU's Support of Regulatory Governance," is accessible from TOLIS Group's web site.

ABOUT TOLIS GROUP, INC.

TOLIS Group Inc. is a closely held corporation located in Scottsdale, Arizona. It is TOLIS's mission to provide leading-edge products to OEMs and end-users that are effective, reliable, and of excellent value for computer users. Product focus centers on data protection solutions, and our service marks of "Software You Can Trust℠" and "Backup You Can Trust℠" guide our business.

The majority of TOLIS products are based on the BRU backup engine, an elegant piece of software first developed in 1985 that has been continually updated and remains at the forefront of backup technology leadership to this day. Numerous product excellence awards have recognized BRU.

TOLIS is also the sponsor of the Tape Device Certification Program. Contact the TOLIS Group at PH: 480-505-0488, FAX: 480-505-0492 E-mail: , or visit TOLIS on the Web.

BRU and BRU-Pro are trademarks of the TOLIS Group. Other company and product names may be trademarks of their respective owners.