Big Data Consultant

Ranko Mosic

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Top Stories by Ranko Mosic

The traditional way of performing backups includes using Oracle RMAN in combination with media management layer software ( typically Netbackup, Tivoli or similar ), which writes backup data to remote robotic tape unit. Tapes are then stored offsite to a secure location. It is well known fact that tape media poses certain challenges in reliability and physical manipulation areas. Cloud-based backups' main attraction is that they are inherently disk based, always accessible, offsite and there are no capex expenditures. All tape related costs are thus eliminated. On the other hand new costs will be incurred for Cloud backups storage and service. Data is transferred over the public network i.e. Internet. Cloud based backups can be used for quick database refresh or duplication of source databases to any target environment. Practically you have an unlimited amount of s... (more)

Oracle Disaster Recovery Site Hosted by Amazon Cloud

DR sites are typically built as an exact replica of the primary site. Application and database software is installed on DR site and sits there mostly unused, waiting for a disaster to happen. DR site is very expensive proposition than only large companies are able to afford. Amazon AWS is an interesting alternative to having your own DR site. Oracle databases on the DR side are in Data Guard configuration with a primary site and actively apply archive log files shipped from there. Pay per use, scalable Amazon Cloud model makes it an attractive alternative to creating and maintai... (more)

Big Data – The State of Affairs

Many products are available as open source or proprietary products that can handle Big Data. Which one is best fit for this task? Today's classic RDBMSs and tools are able to quickly load the data, process it and present results in an easy to understand format.  You can use SQL or programmatic interface to process the data randomly or in batch; RDBMS's keep data safe, protected against hardware and software failures. Standards tools and products are not able to cope with Big Data requirement, which is not dissimilar to  what is involved in processing today's regular data sets, jus... (more)

Oracle Fusion Applications - Installation and First Impressions (Part 6)

Oracle HTTP Server provides HTTP listener services for Oracle WebLogic. Once you download software ( it is a part of Oracle Fusion Middleware 11g Media Pack; HTTP server resides in Oracle Fusion Middleware Web Tier Utilities 11g DVD ), unzip it and run installer you will be presented with welcome screen: Installer will recognize the existing WebLogic installation: You can select components you want to get installed - we picked both HTTP server and Web cache: Here we provided HTTP component details: Here is screen that shows installation progress: This is installation complete... (more)

Oracle Fusion Applications - Installation and First Impressions (Part 7)

Oracle Fusion Applications Provisioning is the überinstaller for OFA. Based on your input and its knowledge about OFA dependencies it will prepare and deploy OFA components to appropriate target locations. Provisioning Plan is driving the installation process. It is created when you select this option from Provisioning Wizard:   Here you pick components Provisioning Plan is created for - we chose Oracle Financials module: Wizard will show you topology summary and details about the chosen configuration: Here we provide Access Manager details: Here we supply Oracle Identity ... (more)