Installation and Reference Guide for HP MPIO Full Featured DSM for EVA3000/5000 VCS 4.xxx Disk Arrays 3.00.00 (AA-RW8SF-TE, March 2008)

port A TherelativenumberofanHBA.Aspeciﬁc 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 Ar ea Network. A conﬁguration of networked devices for storage.

state An attribute that describes the current operational c ondition 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 deﬁnition of target depends on the environment:

• For parallel SCSI conﬁgurations, the target is the actual target number

assigned to a device.

• For Fibre Channel conﬁgurations, 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, ta rget is a map ping function derived from the order

of discovery according to port connections at the SAN (Storage Area

Network) switch.

topology An interc onnection scheme that allows multiple servers and stora ge devices

to communicate. Arbitrated loop and switched fabric are examples of Fibre

Channel topologies.

Glossary