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SCSI converters, extenders, repeaters & switches (manufacturers)

scsi converters readers - click here for storage news
Megabyte found that compatibility problems
could creep into the simplest system.

See also:-

What is SCSI?
the Solid State Disks Buyers Guide
LVD, SE, HVD, SCSI compatibility - or lack of it
SCSI Software Tools for Defense Systems Integrators
Serial Attached SCSI: New Interface, New Storage Rack?
the Benefits of Serial Attached SCS) for External Subsystems
Serial Attached SCSI - Delivering Flexibility to the Data Center

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Larry Boucher - inventor of SCSI. Find out more about people who have shaped storage history.
read the serial scsi article by Adaptec
the Benefits of SAS (Serial Attached SCSI) for External Subsystems - article by Adaptec

This introduction to Serial Attached SCSI gives you an idea of the performance, compatibilities, applications and roadmap for this new directly attached disk connection standard. With throughput capability faster than 2Gbps Fibre-channel systems and faster than ultra320 SCSI - the new SAS products not only provide an upward migration path for parallel SCSI applications but also open the door to a new class of high performance high reliability enterprise systems. the article, ...Adaptec profile, Serial Attached SCSI
SCSI converter etc companies
iSCSI / SCSI / Serial Attached SCSI
ADVA Optical Networking

Advanced Computer & Network Corporation


Aeon Communications



Digital Interactive Solutions

Granite Digital



LSI Logic



Rancho Technology

TD Systems

TMC-The Mate Company
TMC-The Mate Company
TMC-The Mate Company,
based in California, manufactures
an extensive range of cables,
adapters, converters and
terminators for fibre-channel, SCSI
SATA and Serial Attached SCSI.
Squeak! - Animal Brands and Metaphors in the Storage Market
Squeak! - Animal Brands and Metaphors in the Storage Market
Animal marketing metaphors are popular in service industries, but you'd be surprised how many companies have used animals in their marketing of data storage products and services. The storage market was worth over $150 billion in 2005, and as it gets bigger - more companies will turn to animal brands to help differentiate their otherwise bland products and lend them artificial (or deserving) characters and virtues.

The idea behind this type of marketing is to suggest positive connotations so it's unlikely that anyone will choose to associate their products with gremlins. But you may be surprised by the population of the storage ark.

This reference articles lists all known companies who have furry marketing brands, and also includes some which are slimy, scaly and scary too. the article, Mice in storage
Nibble Re: SCSI

25 years old in May 2006, the SCSI standard has withstood the test of time remarkably well. Part of the reason is that there are actually 3 critical parts to this standard
  • the connector and cable standard:- which has evolved and adapted over the years. There's no such thing as a standard SCSI cable. In reality there are many.
  • the electrical levels:- which started out as TTL compatible 5V levels and have gradually dropped in level (to provide more speed) and added differential signals (to improve noise immunity).
  • the software protocol:- has been the key to SCSI's long term success, because conceptually it provides simple high speed access to data bytes or blocks, on a simple network of connected storage devices.
The performance of the SCSI connection has always enable state of the art disk I/O to be supported at hardware speeds. In fact the software standard has proved so useful, that it's been adopted in the next generation internet connected storage standard iSCSI.

SCSI longevity has been due to the fact that it incorporates a handful of basic concepts which have been flexible enough to be expanded and adapted as new faster electronic interface technologies and devices came along.

Just as Ethernet changed speed from 3Mbits/S, then 10Mbits/S, 100Mbits/S, and now 1000Mbits/S (Gigabit Ethernet), SCSI now spans the speed range from its original 5Mbytes/S to 320Mbytes/S . That's fast enough for most applications, and ensures that it will still be a safe economical choice for many years to come.

In fact the legacy software established with the SCSI protocol has led to 2 other variants developing in recent years.

iSCSI - which connects remote locations via an emulation of SCSI which operates over the internet, and

Serial Attached SCSI - this is an emerging standard, which aims to provide a low cost, high performance alternative to FireWire.
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