Release 8.0.5 for Windows NT
A64425-01
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Parallel Server Getting Started
Release 8.0.5 for Windows NT A64425-01 |
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A set of instances, each typically running on different nodes,
that coordinate with one another when accessing the shared database residing
on disk.
Operating System Dependent component that discovers and tracks
the membership state of nodes by providing a common view of cluster membership
across the cluster.
An abbreviation for Cluster Manager.
Dynamic Link Libraries. Microsoft Windows operating system
executable files.
A set of instances coordinating together that run on only
the nodes defined within a cluster. Typically, a domain is comprised of
instances that run on some subset of those nodes. Multiple domains can
exist with a cluster. Each domain defines the Oracle Parallel Server instance.
Each domain name is typically the database name defined in the INIT_COM.ORA
file.
A type of partition that points to raw space on the disk.
An extended partition can be assigned multiple logical drives for the database
files. An extended partition avoids the four-partition limit by allowing
you to define large numbers of logical partitions to accommodate applications
using Oracle8 Server.
A type of locking where PCM locks are dynamically allocated
at block-access time. The resources for the lock are only allocated during
the time the lock is needed and are released when the lock is released.
A service called OraclePGMSService that monitors what groups
(or domains) are up and its instance members. OraclePGMSService interacts
with the Cluster Manager -- the vendor software that manages access to
shared disks and monitors the status of various cluster resources (including
nodes, networks, and the PGMS). The Cluster Manager provides a node monitor
service, which each PGMS uses to determine the status of PGMS instances
on other nodes.
A type of locks where PCM locks are statically assigned to
one or more blocks in the data files.
An abbreviation for the Integrated Distributed Lock Manager.
An abbreviation for Input/Output.
Operating System Dependent component that provides I/O to
access shared disks.
A set of threads and resources required for proper database
operation. The pool of threads that make up an instance coordinate their
work on the database through shared memory by means of the Shared Global
Area (SGA). All processes belonging to the instance exist on the same node.
You can connect to any instance to access any information that resides
within a parallel server database.
Oracle Parallel Server software that provides locking mechanisms
to control allocation and modification of Oracle resources.
Operating System Dependent component that reliable transfer
of messages between instances on different nodes.
An abbreviation for Interprocess Communication.
Process that handles remote lock requests (those which originate
from another instance).
Process that manages instance and processes deaths and associated
recovery for the IDLM.
The server process that listens for and accepts incoming
connection requests from client applications. Oracle listener processes
start up Oracle database processes to handle subsequent communications
with the client.
A configuration file that describes one or more TNS listeners
on a server.
Raw partition created by the Disk Administrator that points
to a partition other than Partition0.
A Windows NT server where an instance resides.
A utility to generate configuration files and a script needed
for the Oracle Performance Manager.
OPSM uses the OPSCTL utility (installed on each node) to
manage instances. This utility is run directly from the command line on
a node, or called by the Oracle Enterprise Manager Console. OPSCTL gathers
information about all the instances in a cluster from the TNSNAMES.ORA
files.
An abbreviation for Oracle Parallel Server Management.
A product family consists of system management tools designed
to efficiently manage the complete Oracle environment.
A GUI application to generate a TNSNAMES.ORA file.
Parallel query divides the work of processing certain types
of SQL statements among multiple query server processes.
An architecture that allows multiple instances to access
a shared database. Oracle Parallel Server offers the following (terms will
be described later in this chapter):
A comprehensive and integrated system management solution
for the Oracle Parallel Server. Oracle Parallel Server Manager allows you
to manage multi-instance databases running in heterogeneous environments
through an open client-server architecture.
A single point for starting, stopping, and monitoring the
activity of parallel servers and parallel server instances from the command
line or from within Oracle Enterprise Manager.
A tools that offers a variety of tabular and graphic performance
statistics for parallel servers. The statistics represent the aggregate
performance for all instances running on a parallel server.
Created and associated with Oracle8 database. Similar to
Windows NT services.
The software used to create and maintain the database system,
as well as the actual data stored in the database.
The Oracle Object Relational Database Management System.
Oracle Parallel Server for Windows NT is an Oracle RDBMS.
A software layer that consists of several software components
developed by vendors. The OSD layer maps the key OS/cluster-ware services
required for proper operation of Oracle Parallel Server.
An abbreviation for Oracle Parallel Query.
A utility to generate configuration files and a database
link SQL script needed by the Oracle Performance Manager.
A utility to start and stop instances from either one node
or from Oracle Enterprise Manager.
An abbreviation for Operating System Dependent.
An abbreviation for Performance and Management.
Oracle Parallel Server software that provides instance locks
that cover one or more data blocks (table or index blocks) in the buffer
cache. PCM locks ensure that each shared buffer cache in a node remains
consistent with the shared buffer caches in other nodes with minimal use
of the DLM.
A process that dispatches the execution of a SQL statement
to several parallel server processes and coordinates the results
from all of the slave processes to send the results back to the user.
Processes that performs the requested action of the parallel
coordinator.
Operating System Dependent component that supports external
performance and management tools.
An abbreviation for Parallel Cache
Management.
An abbreviation of Group Membership Service.
Partition that points to Partition0. Window NT automatically
creates a symbolic link name of \\.\PhysicalDrivex (where x
is the physical drive number) to \Device\Harddiskx\Partition0. The
x in \\.\PhysicalDrivex matches the x in \Device\Harddiskx\Partition0.
A partition into which you can install the files needed to
load an operating system. A primary partition is usually formatted for
a particular file system and is assigned a drive letter. There can be at
most four primary partitions on a physical drive.
A unique name for an Oracle database instance. To switch
between Oracle databases, users must specify the desired SID. The SID is
included in the CONNECT DATA parts of the connect descriptors in a TNSNAMES.ORA
file, and in the definition of the network listener in the LISTENER.ORA
file. Also known as system ID.
A synonym for instance identifier. Often abbreviated to SID.
A utility to map symbolic links to logical partitions.
Operating System Dependent component that provides one-time
configuration to startup functionality.
A logical portion of an Oracle database used to allocate
storage for table and index data. Each tablespace corresponds to one or
more physical database files. Every Oracle database has a tablespace called
SYSTEM and may have additional tablespaces. A tablespace is used to group
related logical structures together. For example, tablespaces commonly
group all of an application's objects to simplify certain administrative
operations.
A file that contains connect descriptors mapped to service
names. The file may be maintained centrally or locally, for use by all
or individual clients.
