Advantages of Cloud-Based HA

Many enterprises have deployed SAP HANA on the public cloud to run their applications. For the continuity of SAP services, the high availability (HA) and disaster recovery (DR) feature provided by the SAP on Cloud solution is important to enterprises' cloud migration. In addition to native SAP HA support, the public cloud HA and DR solution further enhances the stability and performance of SAP and many other applications. Compared with traditional HA, cloud-based HA has the following advantages:

• Agility: HA systems can be deployed on the cloud quickly and effectively. However, to realize traditional HA, you need to purchase servers and hardware, complete hardware planning, and require skilled engineers for construction.
• Flexible expansion: Cloud-based HA systems can be dynamically expanded as required to meet system performance requirements. However, the traditional HA architecture is fixed and not easy to be dynamically expanded.
• O&M: Tenants do not need to maintain the cloud-based HA. It is maintained by the cloud service providers. Traditional HA requires a local O&M team.
• Reliability: Cloud-HA can be deployed in different regions based on the tenant's requirements to achieve cross-region HA and ensure system security.
• Cost: Compared with traditional HA, cloud-based HA is cost-effective.