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C141-E219 GL-1
Glossary
Additional Sense Code
This is a 1-byte code displayed in the sense data and is information which specifies the
type of error that was detected.
CCS
Common Command Set
This is the standard form of SCSI logical specifications stipulated by the operations
subcommittee of the American National Standards Institute (ANSI) which stipulates
functions which a direct access device (magnetic disk, etc.) should support.
CDB
Command Descriptor Block
A series of data which describes commands related to input/output operations, sent
from the initiator to the target.
Command
This is a command to a target to perform an input/output operation, and it is described
as the CDB.
Initiator (INIT)
This is a SCSI device which initiates input and output operations on the SCSI bus. In
this manual, initiator has been abbreviated to "INIT."
SAS Device
The general name given to a device which is connected to the SAS bus (input/output
device, I/O controller, host adapter, expander, etc.).
SCSI
Small Computer System Interface
The standardized input/output interface of the American National Standards Institute
(ANSI). [Standard No.: ANSI X3. 131-1986]
Sense Data
When several items of error information are included in a command's completion
status, this is information generated by the target for reporting detailed information on
that status.
Sense Key
This is a 4-bit code displayed in the sense data. It contains information for classifying
the type of error that was detected.
Status
This is 1 byte of information reported to the initiator by the target device when
execution of each command is completed, which displays the command's completion
state.