A security administrator is reviewing hardware resilience controls for an enterprise web application server host. The server host currently features dual redundant power supplies, hot-swappable cooling fans, and a RAID 10 storage array to prevent single points of hardware failure. However, a recent risk assessment highlighted that if the single physical host chassis or motherboard experiences a hardware fault, the application will become unavailable. Which of the following high-availability solutions should the administrator implement to automatically fail over virtualized workloads to a healthy physical host upon host hardware failure?
- Virtual machine hypervisor clustering with automated failoverAnswer
- BDaily automated disk image backups replicated to an offsite cloud repository
- CMultipath I/O configured across dual Host Bus Adapters
- DA cold disaster recovery site with pre-staged server hardware
Answer
Virtual machine hypervisor clustering with automated failover is the optimal solution for recovering workloads immediately after a physical compute host failure.
Virtual machine hypervisor clustering aggregates physical hosts into a cluster. When a physical host suffers a hardware fault, the cluster software automatically redistributes and restarts the running virtual instances on operational cluster nodes, ensuring service continuity.
Step-by-Step Solution
Key Concept
Hypervisor Clustering and Compute Failover