What is the most Effective Failover System?

[Bclns43]

Would clustering of systems be the best failover system approach when business critical systems facing being offline? What industries should adopt this approach even though it can be costly?

 

[brownelsa1318]

Clustering systems is a great way to ensure important business systems are always available and don't have annoying downtime. Industries like banking, the healthcare sector, and the aerospace and defense sectors can adopt this approach.