fabric port (F_port)
A port that is part of a fibre-channel fabric. An F_port on a fibre-channel
fabric connects to the node port (N_port) on a node.
failover
In SAN Volume Controller, the function that occurs when one redundant
part of the system takes over the workload of another part of the system
that has failed.
FCIP See Fibre Channel over IP.
fibre channel
A technology for transmitting data between computer devices at a data
rate of up to 4 Gbps. It is especially suited for attaching computer servers
to shared storage devices and for interconnecting storage controllers and
drives.
fibre-channel extender
A device that extends a fibre-channel link over a greater distance than is
supported by the standard, usually a number of miles or kilometers.
Devices must be deployed in pairs at each end of a link.
Fibre Channel over IP (FCIP)
A network storage technology that combines the features of the Fibre
Channel Protocol and the Internet Protocol (IP) to connect distributed
SANs over large distances.
Fibre Channel Protocol (FCP)
A protocol that is used in fibre-channel communications with five layers
that define how fibre-channel ports interact through their physical links to
communicate with other ports.
field replaceable unit (FRU)
An assembly that is replaced in its entirety when any one of its
components fails. An IBM service representative performs the replacement.
In some cases, a field replaceable unit might contain other field replaceable
units.
FlashCopy mapping
A relationship between two virtual disks.
FlashCopy relationship
See FlashCopy mapping.
FlashCopy service
In SAN Volume Controller, a copy service that duplicates the contents of a
source virtual disk (VDisk) to a target VDisk. In the process, the original
contents of the target VDisk are lost. See also point-in-time copy.
F_port See fabric port.
FRU See field replaceable unit.
G
gateway
An entity that operates above the link layer and translates, when required,
the interface and protocol used by one network into those used by another
distinct network.
GB See gigabyte.
GBIC See gigabit interface converter.
Glossary 169
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