How does Altibase replication
compare to Oracle Real Application Cluster (RAC)?
Altibase replication and Oracle RAC share the goal of enabling high availability architectures, but they differ significantly. Oracle RAC utilizes a shared-storage architecture, while Altibase replication follows a shared-nothing approach. Shared-storage architectures, like Oracle RAC, come with the disadvantage of maintaining a single point of failure. In contrast, Altibase's shared-nothing replication offers increased resilience by eliminating this vulnerability. However, the most notable drawback of Oracle RAC is its high cost. Implementing Oracle RAC can be prohibitively expensive, whereas comparable availability targets can often be achieved with more cost-effective solutions. To demonstrate the effectiveness of Altibase as an alternative to Oracle RAC/Exadata, consider the following case studies:
Real-Time Rating System at SK Telecom : Altibase's active-active configuration offers a robust solution for SK Telecom's real-time rating system, ensuring uninterrupted performance and high availability.
Billing and Order Support System for a Global Mobile Telecommunications Provider : Altibase provides flexible scale-out capabilities for a leading mobile telecommunications provider, delivering the required availability and scalability while offering cost efficiencies.
These case studies highlight how Altibase serves as a viable choice, showcasing its capabilities and cost-effectiveness compared to Oracle RAC/Exadata for achieving high availability architectures.
Comparison by Cost
| Item | Altibase Replication | Oracle RAC |
|---|---|---|
| HA Option Price | Included at no extra cost | $184K(public price list for Oracle RAC for 2 nodes with DR and QA options) |
| Additional Hardware | None | Required |
| Additional Software | None | Clusterware, Data Guard |
| Operational Costs | None | High |
Comparison and Features
Altibase replication stands out with its shared-nothing architecture, delivering notable advantages in terms of speed and stability compared to Oracle's shared disk architecture in RAC. Unlike RAC's shared disk system, which relies on global exclusive locks that can introduce significant latency, Altibase replication minimizes latency and enhances performance. In addition to its architectural benefits, Altibase replication offers a range of excellent features that are not supported by Oracle RAC. These features further enhance the capabilities and flexibility of Altibase, providing additional value and functionality for your high availability architecture needs.
| Item | Altibase Replication | Oracle RAC |
|---|---|---|
| Architecture |  |
 |
| Recovery Time | <5 seconds | 30-60 seconds |
| TPS per Extra Node | Negligible (<5%) | Degrades by 18% |
| Linear Scale-Out | Easy | Complex |
| Set Up and Configuration | Easy | Complex |
| Compliance to Commodity Hardware |
Compliant | Non-compliant(which requires Voltaire, Cache Fusion switches, SAN storage, etc.) |
| Scalability | Easy (1:N, up to unlimited nodes) |
Difficult |