The Host Affinity policy allows you to confine the entire stack of a web application—including the web, application, and database VMs—to a single server host.
This optimizes the communication between different tiers, as there is no need to route data to another server host."
HCI Virtual Load Balancer & Auto-Scaling
The virtual load balancer (known as Virtual Application Delivery [vAD] in Sangfor HCI) can be configured to distribute user traffic across multiple web or application VMs. This ensures that user traffic is evenly balanced, leading to optimal performance and user experience.
Auto-scaling groups comprising multiple VMs can be set up to automatically scale out or scale in based on resource utilization. Thresholds can be configured so that scaling is triggered when demand spikes, ensuring consistent performance.
Scale Out Capacity with Performance
Traditional SAN storage uses a frame-based design (controller with enclosures of disks) and scales up by adding more disks when performance bottlenecks occur at the controller.
Both HCI and aStor utilize a frame-less, shared storage design. By adding new nodes that connect to an ethernet storage switch, HCI and aStor can simultaneously scale out both storage capacity and data throughput, enhancing overall system performance.