Compaq Parallel Database Cluster Model PDC/O1000 for Oracle8i and Windows 2000 Administrator Guide

2 Compaq Parallel Database Cluster Model PDC/O1000 for Oracle8i and Windows 2000 Administrator Guide
Compaq Confidential – Need to Know Required
Writer: John Blackburn Project: Compaq Parallel Database Cluster Model PDC/O1000 for Oracle8i and Windows 2000 Administrator Guide
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File Name: j-Glossary.doc Last Saved On: 6/6/01 11:49 AM
Fibre Channel An IEEE standard for providing high-speed data transfer among
workstations, mainframes, supercomputers, desktop computers,
storage devices, and display devices.
Fibre Channel
Arbitrated Loop
(FC-AL)
A storage area network (SAN) topology that uses the Storage Hub or
FC-AL Switch to connect each cluster node with the shared storage
resources. In the PDC/O1000, each FC-AL is non-redundant because
there is only one I/O path from each node to and from the
RA4000/RA4100 Arrays.
Fibre Channel
Fabric
A storage area network (SAN) topology that uses the Fibre Channel
SAN Switch to connect each cluster node with the shared storage
resources. In the PDC/O1000, each Fibre Channel Fabric is
non-redundant because there is only one I/O path from each node to
and from the RA4000/RA4100 Arrays.
GBIC-SW module Gigabit Interface Converter-Shortwave module. A module installed at
both ends of a Fibre Channel cable.
Heartbeat A signal transmitted between cluster nodes to indicate whether the
nodes are operating.
High availability
A term used to identify a computer system that can continuously
deliver services to its clients 99.9 percent of the time (no more than
8.5 hours of downtime per year).
Hot-pluggable
A computer component that can be removed and replaced without
powering down the system.
Hot spare
A computer component that is powered on, not actively processing
data, and awaiting a request to take over operation of a failed
component.
Interconnect
A physical connection between cluster nodes that transmits
intra-cluster communication, also called the cluster heartbeat.
The Compaq Parallel Database Cluster interconnect is dedicated
to servicing requests only between cluster nodes.
Integrated
Distributed Lock
Manager
An Oracle software component that coordinates database locks
among cluster nodes. Sometimes abbreviated as IDLM.