Oracle Database Migration, High Availability, and Disaster Recovery Strategies in Hybrid Cloud Environments for Saudi Enterprises

References

[1] Page MJ, McKenzie JE, Bossuyt PM, Boutron I, Hoffmann TC, Mulrow CD, et al. The PRISMA 2020 statement: an updated guideline for reporting systematic reviews. BMJ. 2021;372:n71.

[2] Oracle. Oracle Cloud Infrastructure Cloud Adoption Framework. Oracle Documentation. 2024.

[3] Oracle. What Is Hybrid Cloud? Use Cases, Pros and Cons. Oracle. 2024.

[4] Oracle. Distributed Cloud Services. Oracle. 2024.

[5] Oracle. Oracle Maximum Availability Architecture (MAA). Oracle. 2025.

[6] Oracle. MAA Best Practices for the Oracle Cloud. Oracle. 2025.

[7] Oracle. High Availability Overview and Best Practices for Oracle Database 23. Oracle Documentation. 2024.

[8] Oracle. Oracle Real Application Clusters Administration and Deployment Guide, 21c. Oracle Documentation. 2022.

[9] Oracle. Active Data Guard. Oracle. 2024.

[10] Oracle. Oracle Data Guard Concepts and Administration, 23ai. Oracle Documentation. 2024.

[11] Oracle. Configure and Deploy Oracle Data Guard. Oracle Documentation. 2024.

[12] Oracle. Zero Downtime Migration. Oracle. 2024.

[13] Oracle. Zero Downtime Migration 21.5. Oracle Documentation. 2024.

[14] Oracle. Zero Downtime Migration 21.5 Release Notes. Oracle Documentation. 2024.

[15] Oracle. Oracle Database Service for Azure. Oracle. 2024.

[16] Oracle. Oracle Database@Azure is Gold Maximum Availability Architecture Endorsed. Oracle. 2024.

[17] Microsoft. Business Continuity and Disaster Recovery for Oracle Database@Azure. Microsoft Learn. 2025.

[18] Oracle. Implement Disaster Recovery with Local and Regional Standbys on Oracle Database@Azure. Oracle Architecture Center. 2025.

[19] Oracle. Implement Disaster Recovery with Multi-Region Standby on Oracle Database@Azure. Oracle Architecture Center. 2025.

[20] Oracle. Learn About Deploying Active Data Guard Far Sync on Oracle Database@Azure. Oracle Architecture Center. 2025.

[21] Oracle. Exadata Cloud@Customer. Oracle. 2024.

[22] National Cybersecurity Authority. Essential Cybersecurity Controls (ECC 2-2024). Saudi Arabia. 2025.

[23] National Cybersecurity Authority. Cloud Cybersecurity Controls (CCC 2:2024). Saudi Arabia. 2025.

[24] Communications, Space and Technology Commission. Approval on the Update of the Cloud Computing Service Regulatory Framework, Version 3. Saudi Arabia. 2023.

[25] DLA Piper. Saudi Arabia Releases Version 3 of Its Cloud Computing Regulatory Framework. 2021.

[26] Hosseini Shirvani M, Amin GR, Babaeikiadehi S. A decision framework for cloud migration: a hybrid approach. IET Software. 2022;16(6):603-629.

[27] Campelo RA, Casanova MA, Guedes DO, Laender AHF. A brief survey on replica consistency in cloud environments. Journal of Internet Services and Applications. 2020; 11:1.

[28] Rehman AU, Aguiar RL, Barraca JP. Fault-tolerance in the scope of cloud computing. IEEE Access. 2022; 10:63422-63441.

[29] Althani B. Migration challenges of legacy software to the cloud: a socio-technical perspective. Cogent Business & Management. 2025;12(1):2503421.

[30] Oracle. Hybrid Cloud Services. Oracle. 2024.

@article{1718374,
      author = {Syed Imtiyaz},
      title = {Oracle Database Migration, High Availability, and Disaster Recovery Strategies in Hybrid Cloud Environments for Saudi Enterprises},
      journal = {Iconic Research And Engineering Journals},
      year = {2026},
      volume = {9},
      number = {11},
      pages = {4523-4532},
      issn = {2456-8880},
      url = {https://www.irejournals.com/formatedpaper/1718374.pdf},
      abstract = {Saudi enterprises are modernizing mission-critical Oracle estates under two pressures: faster digital delivery and stronger resilience under regulatory, operational, and cyber risk. Hybrid cloud is attractive because it allows sensitive databases to remain on premises or in controlled deployments while enabling cloud-based scale, automation, geographic separation, and managed recovery options. Yet migration projects often underperform because cutover planning, high availability design, and disaster recovery architecture are treated as separate workstreams. This paper presents a structured review of 2020-2025 literature, standards, and vendor documentation on Oracle database migration, high availability, and disaster recovery in hybrid cloud settings relevant to Saudi enterprises. A PRISMA-informed review protocol defined scope, screened sources, and synthesized evidence across migration methods, Oracle Maximum Availability Architecture patterns, Oracle RAC, Oracle Data Guard, Zero Downtime Migration, Oracle Database Azure, and Saudi governance controls. The review finds that successful programs follow an integrated continuity pipeline: classify workloads and residency obligations first, choose the target topology second, select a migration path with explicit rollback, engineer local availability at the primary site, and then map disaster recovery and cyber recovery controls to measured RPO and RTO targets. The paper contributes a Saudi-focused synthesis, two design figures, and two decision tables that translate recent evidence into implementation guidance suitable for a review article aligned to Springer or Elsevier conventions.},
      month = {May},
      doi = {https://doi.org/10.64388/IREV9I11-1718374}
  }