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Glossary
110
Quantum LTO-7 HH SAS User’s Guide
High Voltage Differential (HVD)
A logic signaling system that enables
data communication between a supported host and the device.
HVD signaling uses a paired plus and minus signal level to
reduce the effects of noise on the SCSI bus. Any noise injected
into the signal is present in both a plus and minus state, and is
thereby canceled. Synonymous with differential.
Hz
Hertz (cycles per second).
I
identifier (ID)
(1) In programming languages, a lexical unit that names
a language object; for example, the names of variables, arrays,
records, labels, or procedures. An identifier usually consists of a
letter optionally followed by letters, digits, or other characters.
(2) One or more characters used to identify or name data
element and possibly to indicate certain properties of that data
element. (3) A sequence of bits or characters that identifies a
program, device, or system to another program, device, or
system.
IML (Initial microprogram load)
The action of loading a
microprogram from an external storage to writable control
storage.
initiator
The component that executes a command. The initiator can
be the host system or the tape control unit.
INST
Installation.
interface
A shared boundary. An interface might be a hardware
component to link two devices or it might be a portion of
storage or registers accessed by two or more computer
programs.
interposer
The part used to convert a 68-pin connector to a 50-pin D-
shell connector.
intervention required
Manual action is needed.
INTRO
Introduction.
I/O
Input/output.
IOP
Input/output processor.
IPL
Initial program load.
ITST
Idle-time self-test.
Summary of Contents for LTO-8 HH SAS
Page 1: ...Technical Reference Manual Quantum LTO 8 HH SAS User s Guide 6 68132 03 Rev A...
Page 8: ...Contents viii QuantumLTO 8 HH SAS User s Guide...
Page 30: ...Chapter 2 Introduction Specifications 22 QuantumLTO 8 HH SAS User s Guide...
Page 40: ...Chapter 3 Installation Updating firmware 32 QuantumLTO 8 HH SAS User s Guide...
Page 74: ...Chapter 4 Operations Diagnostic and Maintenance Functions 66 QuantumLTO 8 HH SAS User s Guide...
Page 92: ...Chapter 5 Media Disposing of Tape Cartridges 84 QuantumLTO 8 HH SAS User s Guide...
Page 108: ...Appendix A Error Codes and Messages 100 QuantumLTO 7 HH SAS User s Guide...
Page 110: ...Appendix B Tape Alert Flags 102 QuantumLTO 7 HH SAS User s Guide...
Page 126: ...Glossary 118 Quantum LTO 7 HH SAS User s Guide...