What do you do when one unit fails but there is redundancy?

When one unit fails in a redundant system, the proper response is to increase the Asset Capacity Reservation (ACR) of the backup. This action is crucial for several reasons.

First, increasing the ACR of the backup unit allows for the maintenance of operational reliability and performance. It ensures that the redundant unit can handle the load that the failed unit would have managed, thus minimizing the impact of the failure on the overall system operation.

Second, establishing an adequate ACR provides a buffer that can account for potential future failures or stressors on the system. By proactively managing the capacity of the backup, you mitigate risks and help ensure continuity of service without significant delays or interruptions.

In a reliability context, it's important to ensure that the redundant components are not just passive backups but are ready to perform effectively when needed. Therefore, adjusting the ACR is a strategic move to enhance system resilience and reliability after a failure occurs.

Enhancing the ACR effectively prepares the backup to take over the failed unit's responsibilities, which is critical in maintaining operational integrity and preventing service disruptions.