Achieving High Availability

By Author: banuchitra
Total Articles: 2
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Introduction:
In the digital world of today, high availability is an important objective. This is important as it ensures that your application/services are available at all times, during server failure, natural calamities, other unimagined incidents. High Availability with Strategies and Best Practices.

Strategies for High Availability:

Deploy Multiple Application Servers:
They may result in system performance problems or shutdowns. This risk can be minimized by spreading your applications over several servers. This improves efficiency and minimizes the possibilities of experiencing down time.

Scale Up and Down:
High-availability is based on scalability. By adjusting server resources based on load and availability, you can achieve vertical and horizontal scaling. This flexibility ensures your infrastructure can handle varying workloads effectively.

Maintain an Automated Recurring Online Backup System:
Automated backups are a lifesaver in critical situations. They safeguard your vital business data against internal sabotage, natural disasters, ...
... and file corruption. Automating the backup process ensures data safety even when manual intervention is forgotten.

Best Practices for Maintaining High Availability:

Achieve Geographic Redundancy:
Geographic redundancy is your shield against catastrophic events. By deploying servers in geographically distinct locations, you minimize the risk of a single point of failure. Each location should run independent application stacks, ensuring continuity even if one site experiences issues.

Implement Strategic Redundancy:
Not all workloads require the same level of redundancy. Focus on strategic redundancy for mission-critical workflows, optimizing your return on investment. Tailor redundancy efforts to the importance of the workload.

Leverage Failover Solutions:
Failover capabilities should be part of a High availability architecture. When the main system goes down, failover switches to a backup one. DNS allows one to control failover and ensure continuous service.

Implement Network Load Balancing:
Network load balancing for web-applications. This technology directs traffic failure-free when it falls over. Load balancing increases the fault tolerance and scalability making it support both high performance and availability.

Set Data Synchronization to Meet Your RPO:
RPO, which is short for Recovery Point Objective, specifies how much information one must be ready to lose. Set your RPO for 60 seconds or less for optimum availability. For example, ensure that there is no more than a 24-hour delay when it comes to synchronizing data between source and target solutions and preventing data loss which may result from failure of a prime source.

Conclusion:
Modern IT Infrastructure – High Availability. In this way, companies can guarantee their readiness for any challenging situations by using applicable means and methods. Accept these principles to secure your operation and protect customer’s trust.