HP MPIO, Installation And Reference Manual, Page: 52 / 53

port A The relative number of an HBA. A speci fi c port number is determined according
to its order of discovery by the Windows operating system. HBA’s include SCSI,
Fibre Channel, and IDE adapter types.
SAN Storage Area Network. A con fi guration of networked devices for storage.
state An attribute that describes the current operational condition of an object. The
possible states include:
• Good : The multipathing device can be accessed on at least one path.
• Degraded : One or more paths are failed to the storage unit.
target The de fi nition of target depends on the environment:
• For parallel SCSI con fi gurations, the target is the actual target number
assigned to a device.
• For Fibre Channel con fi gurations, a target number is assigned by a mapping
function at the miniport-driver level and is derived from AL_PA (Arbitrated
Loop Physical Addresses) in an FC-AL topology.
• For SAN switched fabric, a target is assigned to a WWPN. This target can
have values between 16 and 125.
• For a fabric topology, target is a mapping function derived from the order
of discovery according to port connections at the SAN (Storage Area
Network) switch.
topology An interconnection scheme that allows multiple servers and storage devices
to communicate. Arbitrated loop and switched fabric are examples of Fibre
Channel topologies.
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Glossary