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Ranko Mosic

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The Oracle Database Cloud is Platform as a Service ( PaaS ) so it only makes sense to compare it to Oracle on Amazon RDS.  Oracle on Amazon EC2, on the other hand, is an IaaS ( Infrastructure as a Service ) offering, which gives you full control over the installation, features and actions around your database. Oracle Public Cloud will consist of a number of major services, the Oracle Database Cloud being one of them. Please refer here for a complete list  of services. One of the most interesting characteristics of the Oracle Database Cloud is that there is no need to  purchase database license. In that respect service is similar to Amazon RDS. The Oracle Database Cloud is based on monthly subscription -"per user-per month or per environment-per month basis". Access to the database is likely to be at the level of an application database administrator i.e. you will o... (more)

Enterprise Class Oracle Databases in the Public Cloud?

Most of enterprise class shops today run their Oracle databases on either HP-UX, AIX or Sun OS operating systems. Is it possible to move these databases to the public cloud, and, if so, who are providers who can help with such a move? Public cloud services are closely related to virtualization i.e. usage of various flavors of popular Virtual Machines (VMware, XEN). VMs are one of major ingredients giving cloud services such great characteristics as scalability, on-demand instant provisioning and deprovisioning of resources. Virtual Machines are able to run many guest operating s... (more)

How to Move Your Oracle Databases to Amazon EC2 Cloud

Amazon Web Services EC2 Cloud is full scale public data center offering services that are in many aspects far ahead of ancient practices present in regular IT environments. Fast provisioning and virtually unlimited scale make old fashioned server procurement and installations look like what they are - past century's practices. This article will not deal with usual objections to cloud computing revolving around change management difficulties ( how to incorporate new environment into the existing IT infrastructure ), security, reliability, performance etc. since we think that all t... (more)

Oracle Fusion Applications - Installation and First Impressions (Part 3)

Oracle Fusion Applications is a very complex product that relies on a number of components. One of them is Oracle Fusion Middleware for Oracle Identity Management, which in turn is built using Oracle Forms, Reports, WebLogic, HTTP server and other products. Here we are briefly describing installation of the WebLogic. Oracle Fusion Middleware components are not included in Oracle Fusion Application Media Pack - they need to be downloaded separately. Once you unpack components and start installer you will be presented with the following WebLogic welcome screen: After you provide... (more)

Hadoop Distributed Storage Management on Amazon Web Services

Hadoop and AWS are enterprise ready cloud computing, distributed technologies. It is straightforward to add more DataNodes i.e. storage to Hadoop cluster on AWS. You just need to create another AWS instance and add a new node to Hadoop cluster. Hadoop will take care of balancing storage to keep level of file system utilization across DataNodes as  even  as possible. Cloudera's distribution of Hadoop includes Cloudera Manager which makes it simple to install Hadoop and add new nodes to it. Screenshot below shows an existing HDFS service with two DataNodes. We will expand HDFS by a... (more)