HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Maintenance and Service Guide (EK-G80MS-SA. C01, March 2005)

Glossary
268 HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Maintenance and Service Guide
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 and replace procedure using hot-pluggable method.
HP StorageWorks
The HP brand name for a family of modular data storage products that allows customers to
design and configure their own storage subsystems. Components include power, packaging,
cabling, devices, controllers, and software. Customers can integrate devices and array
controllers in HP StorageWorks enclosures to form storage subsystems. HP StorageWorks
systems include integrated devices and array controllers to form storage subsystems.
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.