The Oracle white paper "Disaster Recovery for Oracle Exalogic Elastic Cloud with Oracle Exadata Database Machine" deals with a subject much on the minds of users lately: disaster recovery with the Oracle Exalogic Elastic Cloud. The principles under discussion apply to deployments on an Oracle Exalogic Machine with an Oracle Database and to standalone deployments on an Oracle Exalogic Machine. Oracle Fusion Middleware Disaster Recovery -- the heart of Maximum Availability Architecture -- uses storage replication technology for disaster protection of Oracle Fusion Middleware middle tier components, supporting hot-pluggable deployments and offering compatibility with third-party vendor-recommended solutions.
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"Disaster recovery is a growing part of IT's budget, but IT still needs quicker, more efficient, and more affordable backup and recovery solutions into one seamless process ..."
Over the last 40 years DR has been relatively stable in terms of DR execution. Now "Disaster Recovery is Driven By Tight Budgets and New Technology". The Cloud, CDP and constant replication are all solutions that companies are looking to implement.
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Shadow Migration, according to Steve Tunstall, is a tool useful both for migrating data from any non-ZFSSA, NFS source or even from a different pool between controllers on the SAME clustered ZFSSA system. This is unlike the replication feature of ZFSSA, which can talk only to another 7000 system. Shadow Migration can get data from both a local source or from any NFS mount from anywhere. He then outlines an eight-step process for performing a Local Shadow Migration, moving data from a share in one pool to another pool on the same system.
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Readers will find a generalized discussion of one of the most important features in MySQL Cluster 7.2, namely, Multi-Site Clustering, in Mat Keep's blog. While, as Keep points out, MySQL has long offered Geographic Replication, Multi-Site Clustering enables the deployment option of splitting data nodes across data centers. This feature, he writes, allows users to synchronously replicate updates between data centers with no need to modify applications or schema for conflict handling.
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As reported elsewhere in this issue of System News, MySQL Installer for Windows has been released to General Availability, according to Bertrand Matthelie's blog. MySQL Installer for Windows takes only a few minutes from downloading the MySQL Installer to having a ready-to-use MySQL system on your machine, radically simplifying the installation process for all MySQL users on the Windows platform. Oracle's certification for Windows Failover Clustering expands the range of High-Availability solutions available for MySQL on Windows, which previously included replication and MySQL Cluster.
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