Glossary

 

 

baud rate cannot be equated to bandwidth unless the number

 

of bits per symbol is known.

Blade Server

A Blade Server is a computer system on a motherboard,

 

which includes processor(s), memory, a network connection

 

and, sometimes, storage. The blade concept addresses the

 

needs of large scale data centers to reduce space requirements

 

for application servers and lower costs.

 

A typical application could be serving web pages. So along

 

with a Storage Blade they can be rack-mounted in multiple

 

racks within a cabinet together with common cabling,

 

redundant power supplies and cooling fans. Blades can be

 

added as required, often as "hot pluggable" units of

 

computing as they share a common high speed bus.

 

IBM Definition: Blade Server refers to a chassis that can hold

 

a number of hot-swappable devices called blades. That is, the

 

entire package of chassis, server blades, and option blades.

Boot

To start a computer so that it is ready to run programs for the

 

user. A PC can be booted either by turning its power on,

 

(Cold Boot) or by pressing Ctrl+Alt+Del (Warm Boot).

Break Signal

A break signal is generated in an RS-232 serial line by

 

keeping the line in zero for longer than a character time.

 

Breaks at a serial console port are interpreted by Sun servers

 

as a signal to suspend operation and switch to monitor mode.

Checksum

A computed value which depends on the contents of a block

 

of data and which is transmitted or stored along with the data

 

in order to detect corruption of the data. The receiving system

 

recomputes the checksum based upon the received data and

 

compares this value with the one sent with the data. If the two

 

values are the same, the receiver has some confidence that the

 

data was received correctly.

Glossary-2

AlterPath Manager E2000 Manual

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Cyclades AlterPath BladeManager user manual Blade Server, Boot, Break Signal, Checksum