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Solaris Cluster

From Alfawiki
Adapted from the English Wikipedia article Solaris Cluster, available under CC BY-SA 4.0Updated 9 August 2025
Solaris Cluster
Company typeSoftware
IndustryComputer software
PredecessorSun Cluster
FounderSun Microsystems
ProductsHigh-availability cluster software
OwnerOracle Corporation

Oracle Solaris Cluster—also referred to as Sun Cluster or SunCluster—is a high-availability cluster solution designed for the Solaris platform. Initially created by Sun Microsystems, it became part of Oracle Corporation's portfolio following their 2010 acquisition. This software enhances the uptime of essential services including database systems, network file sharing, and e-commerce website operations. Solaris Cluster functions by utilizing multiple redundant machines, or nodes, which ensure uninterrupted service in the event one node experiences failure. These nodes may be situated within a single data center or spread across multiple geographic locations.

Background

Solaris Cluster achieves high availability (HA) by sustaining service continuity despite failures in individual nodes or components. It supports two principal HA service categories: failover services and scalable services.

To eliminate single points of failure, Solaris Cluster configurations incorporate redundant elements such as several network interfaces and shared storage accessed via a storage area network. This clustering technology plays a critical role in Business Continuity planning, with its Geographic Edition specifically tailored for disaster recovery scenarios.

As a kernel-level clustering solution, Solaris Cluster integrates tightly with the operating system to orchestrate failover processes and coordinate resource management.

In June 2007, Sun Microsystems contributed Solaris Cluster source code to the OpenSolaris HA Clusters community, fostering collaborative development efforts.

Solaris Cluster Geographic Edition

Launched in August 2005, the Solaris Cluster Geographic Edition (SCGE) enables management of two separate Solaris Cluster environments as a single entity, working in conjunction with data replication technologies. This configuration facilitates swift disaster recovery by continuously synchronizing data to remote locations, effectively reducing both the Recovery point objective (RPO) and Recovery time objective (RTO).

Proxy file system

PxFS (Proxy file system) is a distributed, highly available, and POSIX-compliant filesystem deployed within Solaris Cluster nodes. PxFS allows devices to be accessed globally across the cluster, promoting efficient resource sharing.

Supported applications

Solaris Cluster utilizes software modules known as agents to supervise application health and initiate corrective actions when problems occur. Provided agents cover major enterprise applications including Siebel Systems, SAP Livecache, WebLogic Server, GlassFish, MySQL, Oracle RAC, Oracle E-Business Suite, and Samba. Additionally, a wizard tool assists administrators in developing custom agents for other applications.

Releases

  • Oracle Solaris Cluster 11.2

See also