Glossary – HP ESL E-series Tape Libraries User Manual

Page 135

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Glossary

ASC

The Additional Sense Code is part of the SCSI-2 specification. The additional

sense code (ASC) field indicates further information related to the error or

exception condition reported in the sense key field.

ASCQ

Additional Sense Code Qualifier is part of the SCSI-2 specification. The

additional sense code qualifier (ASCQ) indicates detailed information related

to the additional sense code.

Autoclean

A user-defined mode made on the touch screen graphical user interface by

which the library automatically performs drive cleaning tasks.

Bit

The basic unit of data in a binary numbering system (binary digit), represented

by a 0 or a 1. Eight bits equals one byte.

Byte

The basic unit of computer memory which is large enough to hold one character.

Calibrate

A process used by the library robotics to determine the exact position of storage,

data transfer, and import/export elements.

Check Condition

status

This is part of the SCSI-2 specification. It is notification from the library back to

the host that the host needs to check the status of the library. It can indicate a

normal state change such as a door closed, or an error such as a move failure.

CISPR 22

This standard describes the emissions testing methods and test limits for

information technology equipment, such as computers, office machines, or

telecommunications equipment connected to low - voltage power main networks

(<600V). It does not apply to equipment whose primary function is radio

transmission or reception as defined by the International Telecommunications

Union (ITU) Radio Regulations. The object of the standard is to establish uniform

requirements for the conducted and radiated disturbance levels of the equipment

covered by the standard. Disturbance limits are established for Class A and

Class B equipment, and measurement methods, operating conditions, and

interpretation of results are addressed.

Class A digital

device

Class A equipment is intended for Commercial installation.

Class I laser prod-

uct

Class 1 lasers are products where the power of the laser beam produced (the

accessible emission) is always below the Maximum Permissible Exposure value.

Therefore, for Class 1 lasers the output power is below the level at which it is

believed eye damage will occur. Exposure to the beam of a Class 1 laser will

not result in eye injury. Class 1 lasers may therefore be considered eye safe.

Class II laser prod-

uct

Class 2 lasers are limited to a maximum output power of 1 mW. A person

receiving an eye exposure from a Class 2 laser, either accidentally or as a result

of someone else’s deliberate action (misuse) will be protected from injury by

their natural blink reflex. This is a natural involuntary response which causes the

individual to blink and avert their head thereby terminating the eye exposure.

Cross Linked (CLM)

library

A Cross Linked library comprises two or more standalone libraries that function

as a single system. Additional hardware and specific firmware is required to

form a CLM library.

Elements

SCSI designation for any device or bin in the library that can hold a cartridge.

SCSI elements include storage bins, tape drives, load port bins, and the picker.

HP StorageWorks

135

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