IT Operations Build 99.9999% Cloud Resilience With Clustering, Replication and Failover
Updated
Updated · InfoWorld · Sep 3
IT Operations Build 99.9999% Cloud Resilience With Clustering, Replication and Failover
3 articles · Updated · InfoWorld · Sep 3
Summary
Four building blocks—clustering, data replication, failover and disaster recovery—are central to keeping mission-critical cloud workloads running through outages, misconfigurations, overloads and third-party failures.
Shared-responsibility cloud models leave providers accountable for infrastructure, while enterprises remain responsible for workload configuration, availability and recovery targets such as RPO and RTO.
Software-based SANless clustering is presented as a more flexible cloud approach, keeping standby nodes synchronized across availability zones, regions, on-premises sites and multiple clouds for immediate failover.
Downtime costs can exceed $1 million an hour, with 90% of organizations reporting at least $300,000 per hour, raising the stakes for application-aware failover and geographically separated disaster-recovery designs.
Rolling patching on clustered systems also reduces maintenance risk, supporting continuous improvement as enterprises harden cloud and hybrid environments against inevitable failures.
If your cloud infrastructure survives a regional outage, could a single forgotten IAM configuration still permanently destroy your mission-critical recovery?
Could the real-time data replication designed to keep your cloud apps online actually accelerate a ransomware infection across your backup zones?