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A two-fold surge in subscriber numbers in fewer than two years prompted Warid Telecom to review its technology infrastructure. The company had been running business-critical applications on a two-node server cluster but found that this configuration was insufficient to support the increase in processing loads. It also wanted to ease the database administration task. In August 2009, Warid Telecom migrated to a three-node server cluster based on Oracle Database 10g with Real Application Clusters. The configuration has improved system availability, provided better fault tolerance, and can be easily scaled to support business growth. The management task has also eased with the adoption of Oracle Database options such as Oracle Enterprise Manager Grid Control, Oracle Partitioning, and Oracle Automatic Storage Management.
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