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Ranko Mosic

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Top Stories by Ranko Mosic

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 those issues exist in internal, in-house IT departments, perhaps at even larger degree compared to what Amazon EC2 can provide. Cloud will not solve all IT problems but will at least dramatically increase IT productivity while eliminating capex and being able to carefully manage opex. We are... (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)

Oracle RDBMS and Very Large Data Set Processing

Oracle database is a relational database management system that mostly complies with ACID transaction requirements ( atomicity, consistency, isolation, durability ). It means that each database transaction will be executed in a reliable, safe and integral manner. In order to comply with ACID Oracle database software implements fairly complex and expensive (in terms of computing resources, i.e., CPU, disk, memory) set of processes like redo and undo logging, memory latching, meta data maintenance etc. that make concurrent work possible, while maintaining data integrity. Any databa... (more)

Deploying Oracle Databases to Amazon AWS (EC2, RDS)

Amazon recently added Oracle database hosting capabilities to its RDS service offering. You can rent an Oracle database related infrastructure in a pay-as-you-go fashion now. We are going to explore if corporations should be utilizing Amazon AWS Oracle Database related services (EC2, RDS ), how it should be used, where possible savings and potential trouble points are. With services like Amazon AWS it doesn't matter where your hardware and software physically is - it could be in a room next to you or in some other country. It is much easier and cheaper to procure and get new serv... (more)

The Oracle Database Cloud Service vs Oracle on Amazon RDS, EC2

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 d... (more)