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Topic: SCSI

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In the News (Wed 17 Apr 19)

  SCSI - Wikipedia, the free encyclopedia
SCSI stands for "Small Computer System Interface", and is a standard interface and command set for transferring data between devices on both internal and external computer buses.
This change divorces SCSI's various interfaces from the command set, allowing devices that support SCSI commands to use any interface (including ones not otherwise specified by T10), and also allowing the interfaces that are defined by T10 to develop on their own terms.
SCSI devices in the same SCSI transport family are generally backward-compatible.
en.wikipedia.org /wiki/SCSI   (3227 words)

When the SCSI bus was first dreamt up, some decisions were made around the parts which were cheap and readily available, rather than to the optimum electrical characteristics of the bus.
SCSI devices shall detect the Bus Free Phase after SEL and BSY are both false for at least a bus settle delay.
SCSI devices that are capable of synchronous data transfers shall not respond to an SDTR message with a Message LI%,eiect message.
www.ba-stuttgart.de /~schulte/htme/ebuss12.htm   (10096 words)

 What is SCSI? - a definition from Whatis.com - see also: skuzzy
SCSI ports continue to be built into many personal computers today and are supported by all major operating systems.
SCSI allows up to 7 or 15 devices (depending on the bus width) to be connected to a single SCSI port in daisy-chain fashion.
The latest SCSI standard is Ultra-3 (sometimes spelled "Ultra3")which increases the maximum burst rate from 80 Mbps to 160 Mbps by being able to operate at the full clock rate rather than the half-clock rate of Ultra-2.
searchstorage.techtarget.com /sDefinition/0,,sid5_gci212949,00.html   (691 words)

 SCSI Cables,SCSI Adapters,Terminators
SCSI is pronounced "scuzzy" as in, "that computer geek sure was scuzzy looking, like he/she hadn't bathed or hit the laundry for weeks!" Hey to be a true SCSI geek puts you in the "upper echelon" of computer geeks, so if bathing is not "time efficient" during your indoctrination into SCSI, so be it.
SCSI Guru status can only be achieve after posting help messages continually for at least a year in the usenet newsgroup "comp.periphs.scsi".
When a wide SCSI bus or device must connect to a narrow SCSI bus or device, care should be taken to assure the proper termination of the high data byte.
www.ramelectronics.net /html/scsi_cables__.htm   (1715 words)

 SCSI glossary, practical definitions and terminologies for SCSI
The SCSI command and data phases are reduced from a seven to a three phase process and then further combines the status phase and message phase that occur after a data transfer.
SCSI messages are used during the command transfer to negotiate the fast and wide transfer options for the data transfer.
A result of the "intelligence" of SCSI that allows an initiator or target to disconnect from the bus while it is performing a task, such as locating some information at a specific address, and, once it has located the information, reconnect to the bus in order to complete its task.
www.paralan.com /glos.html   (7589 words)

 Radified Guide to SCSI: Tutorial on to How to Install a SCSI hard drive
Some hailed SCSI as the best thing since sliced bread, while others felt is was a complete waste of time and money.
Permit me to state the obvious and say that this guide is intended for people who can afford the cost of a SCSI drive and adapter card (less than the cost of a good 3D gaming graphics card) and who will put a SCSI-based system to good use.
SCSI with Windows XP Update: 22jan2003 - Much debate has raged across the Net regarding the use of (fast) SCSI hard drives in concert with Windows XP: Microsoft's latest version of its market-dominating operating system.
scsi.radified.com   (2530 words)

 What is SCSI? - A Word Definition From the Webopedia Computer Dictionary
SCSI interfaces provide for faster data transmission rates (up to 80 megabytes per second) than standard serial and parallel ports.
Although SCSI is an ANSI standard, there are many variations of it, so two SCSI interfaces may be incompatible.
While SCSI has been the standard interface for Macintoshes, the iMac comes with IDE, a less expensive interface, in which the controller is integrated into the disk or CD-ROM drive.
www.webopedia.com /TERM/S/SCSI.html   (718 words)

 The Linux SCSI Generic (sg) Driver
The Linux sg driver is a upper level SCSI subsystem device driver that is used primarily to handle devices _not_ covered by the other upper level drivers: sd (disks), st (tapes) and sr (CDROMs and DVDs).
The name of the SCSI command executed is typically reflected in the name of the utility; for example: "sg_inq" sends a SCSI INQUIRY command and decodes its response.
SCSI documentation within the kernel source has been moved to the Documentation/scsi directory in the lk 2.6 series.
sg.torque.net /sg   (1897 words)

 Introduction to SCSI
SCSI (pronounced scuzzy) stands for Small Computer System Interface and it is a bus interface used for hard drives, CD-ROMs, Scanners, and other peripherals.
SCSI comes in multiple "flavors" because of the ongoing improvement to the bus and the speed it supports.
SCSI scanners are generally faster and can handle more data then other interfaces, and SCSI CD-ROMs and CD burners are able to handle direct duplication with less chance of buffer overruns.
www.pcnineoneone.com /howto/scsi1.html   (459 words)

 SCSI help
SCSI is a hardware bus similar in function of the IDE controller supporting hard disk drives, CD-ROM drives and other peripherals.
However, unlike IDE, SCSI allows the support of up to eight devices and uses ID numbers 0 through 07, with the SCSI host adapter located on ID number 07 and boots from the ID 00.
Because SCSI devices are connected via chaining the devices together, the SCSI must properly be terminated.
www.computerhope.com /help/scsi.htm   (283 words)

 Small Computer System Interface - SCSI
Unlike competing standards, SCSI is capable of supporting eight devices, or sixteen devices with Wide SCSI.
SCSI, pronounced as Scuz-zee, is a standard for parallel interfaces that transfers information at a rate of eight bits per second and faster, which is faster than the average parallel interface.
SCSI ports were designed for Apple Macintosh and Unix computers, but also can be used with PCs.
www.computerhope.com /jargon/s/scsi.htm   (227 words)

 Howstuffworks "How SCSI Works"
SCSI devices usually connect to a controller card like this one.
SCSI originally stood for Small Computer System Interface, but it's really outgrown the "small" designation.
This article will review SCSI basics and give you lots of information on SCSI types and specifications.
computer.howstuffworks.com /scsi.htm   (191 words)

 Aviation Safety Training at SCSI
Starting in April 2005, in response to requests of those attending the SCSI Prague Aircraft Accident Prevention and Investigation course, SCSI is scheduling annually in the April time frame courses in both SCSI certificate programs (Aircraft Accident Investigation, and Safety Management Systems).
SCSI has been awarded a Federal Supply Schedule Contract.
You may also pay using your "federal government credit card." The SCSI courses are not yet all uploaded to the GSA system but this work is in progress.
www.scsi-inc.com   (365 words)

 SCSI FAQ - Editor Gary Field   (Site not responding. Last check: 2007-10-21)
There are areas of SCSI which I am not expert on, and when a question of fact comes up in one of those areas, I research the issue using the SCSI standards documents, or, ask my colleagues who are expert in that area, about it.
SCSI is like a palace, with an architecture that was well thought out from the beginning and built upon over a period of time to make it even greater than originally envisioned.
SCSI devices share the bus bandwidth efficiently by allowing one device to transfer data while another is seeking or rewinding its media.
www.scsifaq.org /scsifaq.html   (13913 words)

 SCSI standards
SCSI bus interface, standards, manufacturers and distributors, technical information, books and test equipment, from the SCSI Technical Library of Information.
SCSI can connect devices both inside and outside the box with up to 7 drives on a narrow bus or up to 15 drives on a wide bus versus IDE is limited to an 18 inch bus, inside the box with 2 devices per bus.
The SCSI Trade Association Promoting increased understanding and use, to serve as a central distribution source for information and to guiding the growth and evolution of this standard into the future.
www.scsilibrary.com /standards.html   (316 words)

 SCSI bus interface, standards and technical information
The roots of SCSI go back to 1979, when the disk drive manufacturer Shugart was looking for a new universal interface for future disk drives.
The goal of the effort was to develop an interface that supported logical block addressing rather than head/cylinder/sector, 8-bit parallel data transfer instead of analog serial and generic commands rather than a couple of control lines.
This includes the ability of devices to compete for the bus (arbitrate) and to free the bus (disconnect/reselect) temporarily during command execution.
www.scsilibrary.com   (321 words)

 SCSI - Glossary - CNET.com
While the PC was settling for rankly inferior alternatives, the Mac adopted SCSI as its expansion standard.
With SCSI, you can add up to seven new devices to your computer and depend on them to deal with single-interface issues by themselves.
But it requires some system overhead, slows down your computer's start-up, and demands that during installation you handle device ID administration and a process called termination that closes the SCSI circuit.
www.cnet.com /Resources/Info/Glossary/Terms/scsi.html   (87 words)

 SCSI Trade Association (SCSITA)   (Site not responding. Last check: 2007-10-21)
Adaptec and Seagate Join forces on serial attached SCSI (SAS) channel education initiative
Vitesse Extends Serial Attached SCSI Leadership With the Introduction of Next Generation NexSAS™ Expanders
SCSI Celebrates 25th Anniversary of Benefits to the Storage Industry
www.scsita.org   (143 words)

 .:: SCSI Business Solutions // Accounting, Manufacturing, Distribution, CRM Solutions // 888-440-7274 ::.
Since 1992, SCSI Business Solutions has been offering integrated technology solutions to clients throughout the United States and Canada.
SCSI Business Solutions exhibited its Disaster Recovery and Business Contin...
SCSI Business Solutions representatives joined hundreds of exhibitors May 1...
www.scsi-usa.com   (192 words)

 Adaptec - Adaptec Product Index, sorted by Technology
As the worldwide leader in SCSI technology, Adaptec is leading the transition to Serial Attached SCSI (SAS), which brings greater performance, reliability, and scalability to enterprise storage.
Adaptec has been providing the highest-performance and most reliable SCSI adapters for servers, workstations, desktops and laptop computers for over 20 years.
ATA, SCSI, 0-Channel, and external RAID solutions from Adaptec protect mission critical requirements of today's businesses, large and small.
www.adaptec.com /en-US/products   (638 words)

 Accelerate Your Mac! SCSI Reviews and Articles (drives, RAID and controllers)
A reader's tips on how he was able to use the retail ATTO ExpressPCI (ultra-wide scsi card) firmware with an OEM (original equipment version) card.
An exclusive first look at the OEM 64-Bit PCI/Dual Channel Ultra2 SCSI controller that is to be offered soon as a BTO option on BandW G3 Macs.
After a reader reported severe problems with the drive in Macs, I was flooded with owner reports good and bad from most every Mac model and SCSI interface.
www.xlr8yourmac.com /scsi_.html   (1637 words)

 Gary Field's SCSI Info Central / SCSI FAQ Page   (Site not responding. Last check: 2007-10-21)
The Official SCSI FAQ is now within your reach!
SCSI Game Rules - A light hearted look at how to get a SCSI system running properly
List of SCSI device/host adapter problems people have submitted to me
www.scsifaq.org   (347 words)

 Adaptec - Simplify your external storage deployment and easily upgrade to higher levels of capacity. Adaptec offers ...
Adaptec - Simplify your external storage deployment and easily upgrade to higher levels of capacity.
Adaptec offers Storage Components and Software, Direct-Attached Storage (DAS), and Networked Storage and Solutions including SCSI, RAID, Serial ATA, Serial Attached SCSI, iSCSI and Fibre Channel
Snap Server 18000s and Snap EDR Express provide easy and affordable data replication (more)
www.adaptec.com   (65 words)

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