8x00 family of Disk Arrays 3.00.00 Installation and Reference Guide (AA-RW7SJ-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 Area Network. A conﬁguration 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: O ne or more paths are failed to the storage unit.

target The deﬁ nition of target depends on the environment:

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

assigned to a devi ce.

• For Fibre Channel conﬁgurations, a target number is assigned by a mapping

function at the miniport-driver level and is derived from A L_PA (Arbitrated

Loop Physical Addresses) in an FC-AL topology.

• For SAN switched fabric, a target is assigned to a W W PN. This target can

have values between 16 and 125.

• For a fabric topology, target is a map ping function derived from the order

of discovery according to p or t 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.

Glossary