HP StorageWorks Tru64 UNIX Kit V3.0B for Enterprise Virtual Array Installation and Configuration Guide (AA-RUGPB-TE, October 2003)

Glossary
40 Tru64 UNIX Kit V3.0B for Enterprise Virtual Array Installation and Configuration Guide
Host Bus Adapter
See FCA.
host computer
See host.
host ports
A connection point to one or more hosts through a Fibre Channel fabric. A host is a
computer that runs user applications and that uses (or can potentially use) one or more of
the virtual disks that are created and presented by the controller pair.
host-side ports
See host ports.
initialization
A process that prepares a storage system for use. Specifically, the system binds controllers
together as an operational pair and establishes preliminary data structures on the disk array.
Initialization also sets up the first disk group, called the default disk group.
K
Kilo. A scientific notation denoting a multiplier of one thousand (1,000).
KB
Kilobyte. A unit of measurement defining either storage or memory capacity.
■ For storage, a KB is a capacity of 1,000 (10
3
) bytes of data.
■ For memory, a KB is a capacity of 1,024 (2
10
) bytes of data.
LUN
Logical Unit Number. A unique identifier used on a SCSI bus to distinguish between
devices that share the same bus. SCSI is a parallel interface that allows up to eight devices
to be connected along a single cable.
management agent
The Command View EVA software that controls and monitors the Enterprise Storage
System. The software can exist on more than one management appliance in a fabric. Each
installation of the Command View EVA software is a management agent.
MB
Megabyte. A term defining either:
■ A data transfer rate.
■ A measure of either storage or memory capacity of 1,048,576 (2
20
) bytes.
See also MBps.