User's Guide

Glossary
118 Quantum|ATL P3000 Series User’s Guide
C Calibrate
A process used by the library robotics to determine the
exact position of storage, data transfer, and import/export
elements.
Check Condition status
Blocks of data are stored on the tape
medium along with additional information that the library
controller uses to manage storage and retrieval. The format of the
additional information is unique and is hidden from the initiator
during normal read or write operations. This additional
information is often used to identify the physical location of the
blocks of data and the address of the logical block, and to provide
protection against the loss of the user data.
The address of the first logical block is zero. The address of the last
logical block is [n-1], where [n] is the number of logical blocks
available on the medium. A Read Capacity command may be
issued to determine the value of [n-1]. If a command is issued that
requests access to a logical block not within the capacity of the
medium, the command is terminated with CHECK CONDITION.
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 intepretation of results are addressed.
Class A digital device
Class A equipment is intended for
Commercial installation.
Class I laser product
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