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

Cluster Software Components 3-7
Compaq Confidential – Need to Know Required
Writer: John Blackburn Project: Compaq Parallel Database Cluster Model PDC/O1000 for Oracle8i and Windows 2000 Administrator Guide
Comments:
Part Number: 225083-002 File Name: d-ch3 Cluster Software Components.doc Last Saved On: 6/11/01 11:20 AM
Oracle8i Certification
To ensure that Oracle8i Parallel Server is used in a compatible hardware
environment, Oracle has established a certification process, which is a series
of test suites designed to stress an Oracle8i Parallel Server implementation and
verify stability and full functionality.
All hardware providers who choose to deliver platforms for use with
Oracle8i Parallel Server must demonstrate the successful completion of the
Oracle8i Parallel Server for Windows 2000 Certification. Neither Oracle nor
Compaq will support any implementation of Oracle8i Parallel Server that does
not strictly conform to the configurations certified with this process. For a
complete list of certified Compaq servers, see the Compaq Parallel Database
Cluster Model PDC/01000 Certification Matrix for Windows 2000 at
www.compaq.com/solutions/enterprise/ha-pdc.html
Application Failover and Reconnection
Software
When a network client computer operates in a clustered environment, it must
be more resilient than when operating with a stand-alone server. Because a
client can access the database through any of the cluster nodes, the failure of
the connection to a node does not have to prevent the client from reattaching to
the cluster and continuing its work.
Oracle clustering software provides the capability to allow the automatic
reconnection of a client and application failover in the event of a node failure.
To implement this application and connection failover, a software interface
between the Oracle software and the client must be written.
Such a software interface would be responsible for detecting when the client’s
cluster node is no longer available and then connecting the client to one of the
remaining, operational cluster nodes.
NOTE: For complete information on how to ensure client auto-reconnect in an Oracle
Parallel Server environment, contact your Oracle representative.