Shadowbase Products – Data Replication and Support for BASE24™ Environments

Gravic, a world leader in providing high availability and continuous availability, and an inventor
of bi-directional replication, provides BASE24 support in its patented Shadowbase product line.

Uni-directional Active/Passive for Disaster Recovery
Bi-directional Sizzling-Hot-Takeover Active/"Almost Active" for High Availability
Bi-directional Active/Active for Continuous Availability
Data Warehouse Feeds
Real-Time Event-Driven Business Intelligence Solutions
Data Synchronization and Application Integration

	Disaster Recovery & Active/Backup Architectures Load and maintain your hot-site backups of production databases for seamless recovery in the event of a primary system failure. This Shadowbase mode is typically configured for uni-directional replication, which allows your primary node’s application to be up and running with Shadowbase data replication keeping the database on the backup node synchronized with the data changes being made on the primary node. The backup system’s application can be down (called a "cold standby") or also be up and running in a read-only mode (called a "warm standby"), for example for offloading query and reporting processing from the primary system. For more information on Disaster Recovery, click here.
	High Availability & Active/"Almost-Active" Architectures Shadowbase solutions also support "Sizzling-Hot-Takeover" architectures where your backup node’s application is running and ready to take over on a moment’s notice. In these architectures, your application is running on both the active and the backup node, but is only accepting "update" transactions on the active node. Your application on the backup node can be performing read-only query-style transactions, and can also periodically accept verification or test "update" transactions against test accounts to verify end-to-end processing. This architecture greatly improves the recovery time at failover as the target application is already running with the database fully accessible. Additionally, it dramatically simplifies fail-over testing as the backup node processing can be tested at any point without impacting the production application. This Shadowbase architecture is configured for bi-directional replication, so that should a fail-over to your backup node occur, the return replication channel is already configured and will queue the changes being made at the backup node to be resent to the failed node once it has been recovered. This architecture is useful for your applications that cannot run in a fully active/active mode due to the possibility of data collisions.
	Continuous Availability & Active/Active Architectures Gravic’s patented bi-directional replication technology provides you the highest level of disaster tolerance available, enabling two or more simultaneously active systems, each with its own copy of the database, within the architecture. Scale your applications and databases across multiple physical nodes to create one logical system that can scale linearly and survive the failure of an entire node. Shadowbase active/active technology supports various architectures that can avoid data collisions, as well as provide for data collision identification and resolution using various algorithms when running in the "update anywhere" model. Shadowbase data replication provides continuous processing solutions for Oracle, MySQL, DB2, SQL Server, Sybase, and HP NonStop databases on UNIX, Linux, Windows, and NonStop platforms. For more information on Active/Active Architectures, click here.
	Real-Time Data Integration You may be increasingly turning from traditional batch-oriented techniques to real-time data integration to eliminate the scourge of stale, out-of-date data. Real-time data integration communicates accurate, timely data from point A to point B as the events are occurring so you can make better-informed business-critical decisions. Integrate your application data with sub-second latency across two or more homogeneous or heterogeneous platforms and databases. Use uni-directional or bi-directional replication depending on the needs of your applications and projects. Shadowbase integration provides event-driven replication to support real-time processing and operational decision-making as the events occur. For example, as key data changes in your application’s operational database, Shadowbase can selectively ‘trigger’ on the key data changing in a way that matters to you, optionally cleanse or transform the event data, and forward that event in real-time to another system for additional processing. Once processed, Shadowbase can also optionally return results to the original operational system. This extended value-add processing can typically be accomplished without having to modify any of your existing application code. For more information on Real-Time Data Integration, click here.

Database, System, or Site Migrations or Application Upgrades with Zero Application Downtime
Seamlessly migrate to your new systems or sites, or upgrade your application or database, with minimal or zero application downtime with Shadowbase Zero Downtime Migrations (ZDM). A large amount of your system downtime could be due to planned outages required for upgrades, maintenance conversions, or migrations. The requirement could be for an operating system upgrade, a new application release, database maintenance, or installing new hardware. With Shadowbase ZDM, your interruptions are handled without denial of application services to end users, therefore scheduled downtime is eliminated. All that is needed is a location (on the same node or another node, depending on the type of conversion) for the new environment. Keep your new databases synchronized with the old until all applications have been migrated to the new environment, avoiding the risk of the big bang cutover approach. Shadowbase ZDM facilitates testing the new environment ahead of time too, so that the users are cutover to a known–working environment.

For more information on eliminating planned application downtime via Zero Downtime Migrations, click here.

Real-Time Business Intelligence
Feed events from your Centricity Enterprise environments into a data warehouse or a data mart rules engine as they occur, optionally returning results to control operational decision-making processing. Shadowbase solutions provide you the replication and online facilities for real-time business information systems and the infrastructure to implement extreme-availability architectures. These facilities include a real-time data replication engine that provides high-speed data replication among a variety of databases and platforms, and SOLV, the Shadowbase online loading, verification, and validation utility for performing the initial loads of the target environment as well as periodically checking that the target data matches the source. Many of the Shadowbase global installations are active/active, geographically distributed systems that achieve availabilities in excess of six nine’s on average.

For more information on Real-Time Business Intelligence, click here.

To read about the successful implementation of Shadowbase solutions in a BASE24 environment at a large Canadian bank, click here.

Shadowbase support of BASE24 uses HP NonStop AutoTMF for non-audited source files and tables, or the Shadowbase SOLV utility for generating periodic "snap-shot" loads of non-audited data. If you have non-audited data to be replicated, please contact us to discuss your specific needs.

Shadowbase Products - Data Replication and Support for BASE24™ Environments