HP StorageWorks HSG80 Array Controller V8.7 Maintenance And Service Manual page 172

Glossary
hot-pluggable
A replacement method that allows normal I/O activity on a device bus to remain active during
device removal and insertion. The device being removed or inserted is the only device that
cannot perform operations during this process. See also pluggable.
hot swap
A device remove/replace procedure using hot-pluggable method.
HSUTIL
Format and Device Code Load Utility.
I/O
Refers to input and output functions.
I/O interface
See interface
I/O module
A device that integrates an enclosure with either an 8-bit single-ended SCSI bus, 16-bit
single-ended SCSI bus, 16-bit differential SCSI bus, or Fibre Channel bus.
I/O operation
The process of requesting a transfer of data from a peripheral device to memory (or visa
versa), the actual transfer of the data, and the processing and overlaying activity to make both
of those happen.
interface
A set of protocols used between components, such as cables, connectors, and signal levels.
LBN
Logical Block Number. A volume-relative address of a block on a mass storage device. The
blocks that form the volume are labeled sequentially starting with LBN 0.
LED
Light-emitting diode.
link
A connection between two Fibre Channel ports consisting of a transmit fibre and a receive
fibre.
local connection
A connection to the subsystem, by way of the controller serial maintenance port, to a
maintenance terminal or the host terminal. A local connection enables you to connect to one
subsystem controller to perform maintenance tasks. See also maintenance terminal and local
terminal.
Glossary–6 HSG80 Array Controller V8.7 Maintenance and Service Guide