Migration with Goldengate

Question

Hi,
We want to migrate our SAP system from Oracle 9i(Solaris) to SQL 2005(Windows). And export time with r3load is too high.
Do you have any information about GoldenGate Trasactional Data Integration tool.?
Muhittin Çelik

Answer 1

hi,
Solutions for "Three States" of High Availability
High availability of applications and their underlying systems should be assessed from the position of the end user. In other words, regardless of the root cause, does the user perceive the system to be down or unavailable?
At any given time, the business can be concerned with any one of three (3) states for the same system -- each state with different underlying technical considerations and potential solutions, but all affecting the availability for end users in the same way (it's either seen as "down" or "running smoothly"). Understanding those three states makes it easier to categorize and evaluate potential solutions:
"Unplanned Outage"
Unplanned outages may be caused by one of two primary failure types: system-level failures, or data-level failures. The business will want to confidently failover to a backup as quickly as possible, and also be able to easily revert back to normal operating conditions once the primary system is back online.
GoldenGate for Live Standby -- A high availability software implementation that significantly improves recovery time for business-critical systems, enabling a real-time high integrity backup system that can be re-synchronized with the primary system.
"Planned Outage"
There are essential events that still require the IT group to schedule downtime, such as modifying hardware or database software, upgrading applications or databases, applying software patches, migrating to different computing architectures, etc. Since such events are not conceived via an unplanned or unexpected event, they are aptly classified as "planned outages."
GoldenGate for Zero-Downtime Operations -- An exceptional solution for reducing planned outages, by enabling uninterrupted business operations and application high availability during necessary system upgrade, migration, and maintenance activities.
"Active"
In this state, your application and/or database is technically up and running, but is experiencing some degree of degradation that is noticeably affecting performance, throughput, and subsequently response time.
GoldenGate for Active-Active (Dual-Active) -- A load-sharing, high availability solution for improving performance and reliability for two (or more) systems, including data conflict detection and resolution capabilities.
GoldenGate for Database Tiering -- An unlimited scalability solution for improved performance and availability of critical systems, achieved by off-loading reporting and read-only activity from critical primary transaction processing systems.
GoldenGate Live Standby is a high availability software implementation that significantly improves recovery time for business-critical systems.
KEY BENEFITS:
Very minimal business interruption enabled by secondary database ready for immediate failover
Do root-cause analysis of failure while backup system supports active users
Seamless, real-time data flow between backup and primary systems
Higher confidence in backup data
No geographical distance constraints
Point-in-time recovery and dynamic rollback of data
Maximize backup system value to support live, real-time reporting needs
Business and IT Challenges
For business-critical transaction systems, traditional disaster recovery solutions are simply not enough for companies seeking to improve recovery time and recovery point objectives. Particularly for those systems that directly impact revenue, customer servicing, product delivery, and other key parts of the business, the IT organization must find ideal solutions for minimizing downtime and data loss.
Overcoming Traditional Recovery Challenges
Where traditional disaster recovery, backup, and replication methods are relied upon solely, the IT department is likely to find any combination of the following issues:
It takes longer than expected to get the backup system online.
The backup data is not as current as within only sub-seconds of the outage.
There is no guarantee of data integrity and accuracy at the backup.
The failover system is not available for real use and requires a substantial, manual recovery effort.
If the backup system has started processing transactions after the outage, there is no easy, seamless way to re-synchronize data with the primary system.
In an environment of increasing 24x7 business processes and declining user patience levels, improving the speed and reliability in getting key transactional systems back online must be an integral part of the overall IT strategy.
GoldenGate Live Standby
GoldenGate Software offers an excellent solution that allows the IT group to overcome common data recovery challenges, and thereby greatly improve their business;s ability to tolerate any range of unexpected interruptions and disasters.
GoldenGate's Live Standby is a high availability software implementation that captures transactional data from the primary system and applies it to the backup database in real time. If a failure or outage occurs at the primary system, the backup system is immediately ready and available to support users with the most current data committed at the source up to its failure point.
Further, GoldenGate Live Standby provides for bi-directional data movement so that once the primary system is ready to be brought back online, any new data processed by the backup system is applied to the primary. With this Live Standby solution, the primary and secondary systems can be kept in synch at all times. In addition, the secondary database can now be leveraged to support other business activities -- particularly, real-time "live reporting" needs.
GoldenGate Live Standby is an excellent, proven solution for unplanned outages and improving disaster tolerance for transactional data systems. Please contact us for more information on GoldenGate Live Standby, the TDM software platform, and other solutions and products.
thanks
swamy
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