Qumulo is the leader in Hybrid Cloud File Storage, providing real-time visibility, scale and control of your data across on-premises and cloud. Qumulo’s real-time analytics enable you to understand your storage at a granular level, detect bottlenecks and accelerate performance. Built to scale across data center and cloud, Qumulo lets you programmatically configure and manage usage, capacity and performance. Qumulo’s innovative approach continuously delights customers with new capabilities, 100% usable capacity and direct access to experts.
The function of the load balancer is to ensure that connections to a Qumulo Hybrid file System cluster are distributed across healthy Qumulo nodes. This is done to provide a highly available and scalable service.
The diagram below illustrates how the load balancer is deployed. The client sends a DNS query for the service FQDN, e.g. qumulo.company.com to the local DNS server.
The local DNS server has the sub domain delegated to both load balancers (both load balancers are configured as name servers for the sub domain). One of the load balancers receives the delegated DNS query. The load balancer selects a healthy Qumulo node based on the GSLB health checks and the round robin algorithm used.
The load balancer returns the IP address of the selected Qumulo node to the DNS server. The DNS server returns the IP address of the selected Qumulo node to the client. The client connects directly to the Qumulo node.
The load balancer can be deployed as a single unit, although we recommend a clustered pair for resilience and high availability. Details on configuring a clustered pair can be found on page 13 of our deployment guide, below.
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Qumulo Hybrid File System Deployment Guide
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