![]() Consequently, the areas of concern for the DBA have been extended, respectively. Likewise, it is equally important for the DBA to embrace the fact that the some components of the stack that affect the database have been extended into the virtualized infrastructure, such as networking, storage access, processing capability, and memory. This is because ESXi does not alter the kernel of any guest operating system (OS). Importantly, it is axiomatic that basic database administration skills do not change when virtualization is included in the stack. Similarly today, we see the realm of the DBA extend into the virtualization arena. Over the past decade, the focus of the DBA grew to include storage as Oracle introduced Automatic Storage Management (ASM), and thus, the DBA was confronted with a lack of willingness on the part of the storage administrator to manage the ASM instance. In years past, the DBA’s concerns moved into the nedtwork realm as Oracle introduced horizontal scalability with Oracle Cluster (later to become Oracle Parallel Server and finally Oracle Real Application Cluster ). However, it is important that the DBA’s scope of responsibility does increase in breadth. ![]() ![]() What makes the transition smooth is that the Oracle database administrator’s (DBA) skill set, deployment technique, and responsibilities do not change when transitioning from a physical to virtual environment. ![]() In fact, virtualization quite simply makes Oracle better. Oracle databases and software run successfully on vSphere and provide significant scalability, availability, and performance benefits. ![]()
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