High Availability Implementations

   Case Studies

Many businesses today require 99.99% availability of their enterprise applications. Achieving a highly available environment involves analyzing uptime requirements, identifying potential downtime risks, implementation of well-designed solutions, and, at the same time, minimizing the costs and administration.

The team of Infrastructure Management consultants at Celeritas Technologies provides the expert assistance to evaluate your system availability requirements, design solutions to meet those requirements and implement the solutions throughout your environment. We understand the need for rapid deployment, high system availability, data availability and data replication for mission critical environments. The Celeritas team has worked with many High Availability technology solutions: Oracle, Veritas, F5, Cisco, Sun, HP, DEC and Microsoft fail-over technologies. So whether the solution is Oracle Real Application Clusters, standby databases, data replication, hardware clustering, or another HA solution, our team of seasoned consultants has the expertise and experience to help you.

Our methodology for implementing Highly Available solutions includes:

• Identifying the High Availability requirements & needs
• Designing the hardware, software, & processes needed to achieve these requirements
• Creating a detailed implementation plan
• Testing the implementation plan
• Deploying the tested implementation plan
• Providing complete system documentation

A large electric utility company was re-architecting their Oracle RAC environment on a Sun cluster in order to improve performance for their PeopleSoft ERP databases, Utility Management Systems and billing system applications. Celeritas was engaged to manage and implement the architecture change and storage configuration and to rebuild the Oracle databases. Celeritas helped design the Oracle database architecture, Sun cluster environment and storage layout. Celeritas also built and moved the PeopleSoft and Utility Management databases to the new clustered environment. Celeritas also provided complete system documentation for the new environment.

A utility company's mission critical application used to forecast energy sales required high availability and scalability—requirements which led to a decision to implement Oracle 10g RAC.

Celeritas provided system design, implementation, testing, and documentation for a three-node enterprise class RAC environment. Design services included designing the storage configuration in the SAN, the ASM diskgroups, and the 10g RAC services. Implementation involved setting up the Oracle Clusterware, configuring ASM storage, creating the Oracle 10g database, and implementing RMAN for database backups. The testing phase included testing backup and recovery, disaster recovery, hardware and OS failures, and cluster services provisioning.

Proper design and implementation was critical to facilitate database consolidation on the RAC environment for present and future consolidation. Complete documentation was provided to the client, as well as mentoring from Celeritas consultants, both of which allowed the client to take over the management of the 10g RAC environment.

Celeritas provided system design, procurement and consulting services for a two-node enterprise-class cluster to build a national wholesale distributor's 24X7 e-Commerce system. Services included planning, installation and configuration of Oracle Parallel Server, as well as planning and implementation of storage with Veritas Cluster Volume Manager to support the application.

Celeritas also designed, implemented and documented the backup solution utilizing Oracle Recovery Manager and Legato Networker in order to support the 24x7 requirements and the use of raw partitions required by OPS.

Top | Home | Contact Us | Sitemap
Oracle Consulting | Clustering/HA Systems | Performance Analysis
Shared Services | Sarbanes Oxley | System Administration | GIS Services