Continentalclusters Version A.05.
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Continentalclusters Version A.05.01 Release Notes 1 Chapter 1 Continentalclusters Version A.05.
Continentalclusters Version A.05.01 Release Notes Announcements Announcements Continentalclusters is a Hewlett-Packard high availability solution that provides disaster tolerant clustering with no distance limitation. Version A.05.01 of Continentalclusters, which contains enhancements and defect fixes, is being released on HP-UX 11i v1 and HP-UX 11i v2 update 2 with the following product number: • T2346BA - license, media, and documentation Version A.05.
Continentalclusters Version A.05.01 Release Notes What’s In this Version What’s In this Version Continentalclusters employs semi-automatic failover of Serviceguard packages from one cluster to another following a cluster event that indicates serious disruption of service on one of the clusters. The product consists of a set of configuration, management commands, and a set of daemons that monitors and sends notification of cluster events The A.05.
Continentalclusters Version A.05.01 Release Notes What’s In this Version Failover of a specific package occurs in one direction from the primary cluster to the recovery cluster. Each data center can serve as both primary and recovery cluster for different packages. In the cascading failover configuration, the primary cluster can be a metropolitan cluster using EMC/SRDF or CA XP. NOTE • Logical data replication is also possible using the Oracle Standby Database.
Continentalclusters Version A.05.01 Release Notes What’s In this Version Support for Asynchronous Mode using EMC/SRDF The Continentalclusters environment supports configuration with EMC SRDF/Asynchronous mode for data replication. SRDF/Asynchronous provides a long-distance replication solutions with minimal impact on performance. This protection level is intended for customers requiring minimal host application impact, but need to maintain a restartable copy of data at target (R2) site.
Continentalclusters Version A.05.01 Release Notes Compatibility Information and Installation Requirements Compatibility Information and Installation Requirements The same version of Continentalclusters must be installed on all nodes in all the clusters of the configuration. To use Continentalclusters, the following hardware and software must be installed and configured on all nodes.
Continentalclusters Version A.05.01 Release Notes Compatibility Information and Installation Requirements Software Requirements There are both HP software and disk array management software requirements. HP Software Requirements HP-UX 11i v1: • Serviceguard version A.11.15 or later, or Serviceguard Extension for RAC version A.11.15 or later. HP-UX 11i v2: • Serviceguard version A.11.15 or later, or Serviceguard Extension for RAC version A.11.15 or later for HP Integrity Servers.
Continentalclusters Version A.05.01 Release Notes Compatibility Information and Installation Requirements participating Continentalcluster nodes for as designated in the section on “Remote Failover” of Chapter 8 (Using HP-UX IPFilter with Serviceguard user’s guide). For the Bastille security setup requirements for Event Monitoring Service, refer to the Event Monitoring Service release notes.
Continentalclusters Version A.05.01 Release Notes Compatibility Information and Installation Requirements Upgrading from Earlier Versions... If upgrading a continental cluster from an earlier version, the following steps are required: 1. Delete the old Continentalclusters configuration: # cmdeleteconcl 2. Upgrade to a new version of Continentalclusters. 3. Re-apply the Continentalclusters configuration using the original configuration file. # cmapplyconcl -C cmconl.
Continentalclusters Version A.05.01 Release Notes Compatibility Information and Installation Requirements Compatibility Issues Configuration with a metropolitan cluster as the primary cluster is supported in the cascading failover configuration using Metrocluster with EMC SRDF and CA XP. For information on configuration and setup, refer to the Cascading Failover in a Continental Cluster white paper on http://www.docs.hp.com/en/ha.html.
Continentalclusters Version A.05.01 Release Notes Compatibility Information and Installation Requirements • HP StorageWorks Disk Array XP Remote Control User’s Guide (B9357-96011) If you are using the EVA disk array with Continuous Access EVA for data replication, refer to the following: • HP StorageWorks Continuous Access and Data Replication Manager SAN Extensions Reference Guide (T3661-96007, September 2004). • HP StorageWorks Continuous Access EVA Replication Performance Estimator V3.
Continentalclusters Version A.05.01 Release Notes Compatibility Information and Installation Requirements Further Reading Additional information about Continentalclusters and related high availability topics may be found on Hewlett-Packard’s HA web page: http://www.hp.com/go/ha Support information, including current information on patches and known problems, is available from Hewlett-Packard IT center: http://itrc.hp.com (Americas and Asia Pacific) http://europe.itrc.hp.
Continentalclusters Version A.05.01 Release Notes Patches and Fixes in this Version Patches and Fixes in this Version There are no patches required for Continentalclusters version A.05.01 at the time of publication. However, this is subject to change without notice. For the most current information contact your HP support representative or Hewlett Packard IT Resource Center.
Continentalclusters Version A.05.01 Release Notes Patches and Fixes in this Version Fixes There are no known fixes at the time of this publication. However, this is subject to change without notice. For the most current information contact your HP support representative.
Continentalclusters Version A.05.01 Release Notes Known Problems and Workarounds Known Problems and Workarounds The following describes known problems with the Continentalclusters version A.05.01 and workarounds for them. This is subject to change without notice. For the most current information contact your HP support representative. More recent information on known problems and workarounds may be available on the Hewlett Packard IT Resource Center: http://itrc.hp.
Continentalclusters Version A.05.01 Release Notes Known Problems and Workarounds Persistent “cmomd” Processes What is the problem? If the node where the monitor process (cmclsentryd) is running goes down and then comes back up (as in a power failure), the cmomd process will remain on one or more nodes in the cluster that is being monitored. In these circumstances, the cmomd process will continue on the system until terminated by a user.
Continentalclusters Version A.05.01 Release Notes Known Problems and Workarounds • Reboot the node. The package will then move to another node in the cluster. • Fix the problem so that one or more PV Links is restored. The application will then continue normally. • It is also possible to change the default LVM behavior so that it will not retry forever.
Continentalclusters Version A.05.01 Release Notes Software Availability in Native Languages Software Availability in Native Languages Continentalclusters is not available in native language versions.
