The HA Metro Cluster hyperconverged system is an advanced solution designed to ensure high availability (HA) and operational continuity, utilizing a configuration of two interconnected Storage Servers through a low-latency, high-speed 40GbE network. This infrastructure leverages hyperconverged technology combined with VMware ESXi management software and Virtual Appliance Storage (VSA) based on Open-E JovianDSS, providing high performance and real-time data protection.
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How the HA Metro Cluster System Works
In an HA Metro Cluster system, both storage servers operate in synchronous mirroring mode, meaning that every write operation performed on one storage is simultaneously replicated to the other. This type of synchronous replication ensures that data is always up to date and available on both units, minimizing the risk of data loss.
The system utilizes the Advance HA METRO CLUSTER service with Automatic Failover, allowing the system to automatically react in the event of a failure of one of the storage units. When one of the servers becomes unavailable, the other immediately takes control and publishes the volumes (which can be iSCSI or NFS) without interruption, thus maintaining data access and operational continuity.
Integration with VMware and Virtual Machines (VMs)
Thanks to its integration with VMware ESXi, the Metro Cluster system can ensure the high availability of virtual machines (VMs) in operation, depending on the type of VMware licensing used. This means that not only is data protected and synchronously replicated, but VMs can also be automatically redistributed and kept running without disruption, even in the event of a failure in one of the storage units.
Key Benefits of the Metro Cluster
- High speed and low latency: The connection between the two Storage Servers via 40GbE LAN ensures extremely fast data transmission with very low latency, ideal for mission-critical applications.
- Automatic Failover: The system automatically detects a failure and activates instant failover, publishing volumes and ensuring seamless access to data.
- Synchronous Mirroring: Thanks to synchronous data replication, every write is simultaneously mirrored on both storage units, ensuring that there are no differences or delays in data backup.
- VMware ESXi and Open-E JovianDSS: The use of these two critical components provides a robust and flexible virtualized infrastructure, capable of managing and protecting VMs and data with maximum reliability.
Typical Applications
Companies dealing with sensitive data and needing to ensure maximum operational continuity find the HA Metro Cluster solution an essential ally. It is ideal for environments requiring zero downtime, such as distributed data centers, private cloud infrastructures, and e-commerce systems, where a service disruption could have a significant impact.
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Conclusion
The HA Metro Cluster hyperconverged system, thanks to its combination of synchronous mirroring, high-speed interconnection, and automatic failover capabilities, represents an ideal solution for businesses that require high availability, reliability, and high performance. With the integration of VMware ESXi and Open-E JovianDSS, this system can ensure seamless data protection and operational continuity, even in the event of critical failures.
