DPT Ships PCI to Wide SCSI-2 Disk Array Controller

Unique Architecture Supports Up To Three Wide Channels

ATLANTA, GA (4/24/95) -- Distributed Processing Technology (DPT), a leading
supplier of high performance SCSI and RAID solutions, today announced
general availability of its new PM3224W PCI to Wide SCSI-2 disk array
controller beginning in early May. The new multi-channel upgradable disk
array controller supports up to three Wide SCSI-2 channels and is PCI 2.1
compliant. You are invited to see a demonstration of DPT's new SmartRAID
disk array controller during COMDEX/Spring '95 in DPT's booth #5854 in
Atlanta.

The PM3224W is the newest member of DPT's SmartRAID family of RAID-Ready
disk array solutions. This Wide 16-bit version doubles the bandwidth of
the 8-bit PM3224 and provides throughput of up to 20Mbytes/second,
compared with 10Mbytes/second with standard 8-bit SCSI. The PM3224W fully
meets the SCSI-3 parallel interface specification for 16-bit data
transfers and is fully SCSI-2 command set compatible.

The PM3224W features a 32-bit 68030/40MHz processor dedicated to executing
all of the array, ECC and bus mastering functions. Support for
hardware-based RAID levels 0, 1 and 5, including "dual-level" RAID, allows
virtually unlimited numbers of disks to be logically combined into one or
more array groups.

For Wide SCSI expansion, DPT also offers the SX4000 Wide SCSI expansion
modules. The SX4000/1W and SX4000/2W allows the user to upgrade their
single channel, base SmartRAID controller to two or three additional wide
channels, respectively. With these modules, up to 15 additional SCSI
devices can be supported per channel and both 8- and 16-bit devices can be
attached to a single bus.

"Wide SCSI provides the extra bandwidth that some disk array applications
absolutely require," says Jim Campbell, DPT's vice president of marketing,
"The PM3224 can support up to three 20Mbytes/second channels and up to 45
SCSI devices for outstanding performance and scalability."

As part of the SmartRAID family, the PM3224W shares all of the common
features of a SmartRAID controller. These include complete driver
compatibility with existing DPT drivers in all major operating systems, up
to 64MBs of hardware caching support using standard SIMMs or DPT's
ECC-protected SIMMs and complete support of 8-bit non-disk devices.
On-board circuitry passes vital information such as disk, power,
temperature and voltage conditions to DPT's Storage Manager software for
event logging and notification.

Each SmartRAID controller includes DPT's Storage Manager software. It
features a Windows-like graphical user interface and can run remotely on a
DOS, OS/2, Windows or UNIX workstation. Storage Manager simplifies RAID
setup and its enhanced analysis capabilities monitor and record the
operating condition of multiple array subsystems on multiple servers from
a single remote network connection. Other features include diagnostic
utilities, advanced I/O load monitoring and event broadcasting and
notification.

DPT is a leading supplier of high performance peripheral controllers, disk
array products and storage management software for microcomputers. Its
technology includes the first caching disk controller and disk mirroring
controller for the PC. DPT products are sold worldwide through a network
of major distributors and OEMs. The privately-held company, founded in
1977, is based near Orlando, Florida, with European sales offices located
in Milton Keynes, England, and Munich, Germany.

Distributed Processing Technology
140 Candace Drive
Maitland, Florida 32751 USA
(407) 830-5522,  Fax: (407) 260-5366

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