Oracle consolidating databases dating site for 13 year olds


The combination of resource optimization and instance relocation allows the DAN to drive database servers with just the right level of utilization.This enables large enterprises to consolidate servers and realize dramatic savings in hardware, software licenses, and administration costs.The internal mechanism for relocation may be quite complex, but the idea is simple. In a SAN environment, relocation of a database instance involves the following steps: A typical time for such relocation is 10 20 seconds.Using products such as Oracle's Transparent Application Failover (TAF) may allow instance relocation to be performed such that the move to another server is transparent to the database clients and application end users.This article explores a new approach to Oracle technology that "virtualizes" the database layer, allowing for transparent relocation of Oracle database instances onto the most available servers, and enabling optimal utilization and just-in-time expansion of server resources.To fully comprehend the solution, you must first understand the problem.3) Time Consuming: In many large Oracle shops, a "shuffle" occurs when a database outgrows its server.Figure 1 illustrates how easily computing resources can be added at the Web server and application server levels.Large enterprises can add and remove application servers on a just-in-time basis, always ensuring that there are appropriate computing resources to match the load of their end-user community.

To the database clients, each database is identified by a unique virtual IP address (VIP).This shuffling of databases between servers is a huge headache for the Oracle DBAs who are kept busy after hours moving databases to new server platforms.The DAN concept has parallels in current large 4-tiered system architectures.With the exception of complex parallel architectures such as Oracle's Real Application Clusters, database management systems can generally run on only one server at a time, and databases must be moved between servers manually.This limitation has led to a situation in which huge amounts of computer resources are wasted because of the difficulty of balancing server load at the database level.These VIPs are not defined on any specific machine on the network, and are routable by the db Switch using Network Address Translation (NAT).

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