I’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked at Cotocus and regularly write about technology, travel, investing, health, product reviews, and digital marketing through my various platforms.
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The introduction explains the architecture and high-availability benefits of Oracle RAC well, but one challenge that deserves more attention is operational complexity after deployment. Running a RAC cluster successfully isn’t just about installation—it requires continuous monitoring of interconnect latency, Cache Fusion performance, cluster synchronization, and patching strategies that avoid service disruption. Many organizations discover that the biggest investment isn’t the infrastructure itself but the specialized operational expertise needed to maintain consistent performance and troubleshoot cluster-wide issues as workloads evolve.