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Failover
Host, host bus adaptor, cable, or controller failover is the routing of all transactions to
a second controller when the first controller fails.
Fast Ethernet
Fast Ethernet or 100BaseT, defined by the IEEE 802.3 standards committee, provides a
100 Mbps standard that is compatible with existing 10BaseT installations, preserving
the CSMA/CD media access control (MAC) protocol.
Fast write
A write operation at cache speed that does not require immediate transfer of data to
a disk drive. The system writes the data directly to cache, to nonvolatile storage, or to
both. The data is then available for de-staging (writing to disk). Fast write reduces the
time an application must wait for the I/O operation to complete.
FC
Fibre Channel.
FCA
Fibre Channel Adaptor.
FC-AL
Fibre Channel – Arbitrated Loop.
FDN
Hitachi Data Systems’ Storage Area Network
™
(SAN) solution is known as Freedom
Data Networks
™
(FDN). FDN provides an open architecture that leverages SAN
technology and offers organizations the freedom of choice in deploying data-access and
data-sharing capabilities across the enterprise through Hitachi Data System
®
advanced
implementation of Storage Area Networks (SANs). With FDN, customers gain a
powerful new tool that enables the consolidation of servers and storage, increased data
availability, centralized storage management, and the ability to back up and migrate
data without affecting the performance of enterprise networks.
Fibre Channel
Fibre Channel is an ANSI standard designed to provide high-speed data transfers
between workstations, servers, desktop computers and peripherals. Fibre channel makes
use of a circuit/packet switched topology capable of providing multiple simultaneous
point-to-point connections between devices. Fibre Channel is widely deployed in
SAN implementations today. Standards for Fibre Channel SANs are being worked on
by the Storage and Networking Industry Association (SNIA). The technology has
gained interest as a channel for the attachment of storage devices, but has limited
popularity as high-speed networks interconnect. Fibre channel can be deployed in
point-to-point, arbitrated loop (FC-AL), or switched topologies. Fibre channel nodes
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Glossary