Compute confidently at the Edge with Rancher and Longhorn 1.1 | SUSE Communities

Compute confidently at the Edge with Rancher and Longhorn 1.1


Today’s announcement of Longhorn 1.1, a Cloud Native Computing Foundation (CNCF) Sandbox project, is exciting news for users of Rancher, SUSE’s Kubernetes management platform and the Kubernetes community. Longhorn is an enterprise-grade, cloud native container storage solution that went GA in June 2020. Since then, adoption has increased by 235 percent. Now Longhorn is the first cloud native storage solution designed and built for the edge, with ARM64 support, new self-healing capabilities and increased performance visibility. 

The ability for our users to “Compute Everywhere” has always been a key differentiating factor between Rancher and other solutions on the market. This strategy cemented the foundations for successful projects like K3s and Longhorn, which were originally built by Rancher product teams to address the infrastructure needs of multinational organizations with globally distributed and often resource-constrained environments. The success of these projects eventually led to their donation to the open source community through the CNCF 

The latest Longhorn release supports the ‘Compute Everywhere legacy and offers the following new features and improvements to Rancher users and the Kubernetes community at large. These include 

Robust Kubernetes-native storage at the Edge 

The latest Longhorn release gives Rancher access to the first Kubernetes-native edge storage solutionWith ARM64 support, Longhorn was designed to help teams store data reliably within even the most hostile and resource-constrained environmentsTogether, Longhorn and Rancher provide users with a powerful Kubernetes-native management and storage solution designed for the edge.
Driving efficient container performance 

Longhorn has significantly improved its performance with ReadWriteMany’ support, which was a highly requested feature from the community. This feature gives developers an efficient persistent storage solution that enables volumes to be read and written across multiple containers at any time and also allows teams to share volume storage between different paths on different nodes. This feature adds to Longhorn’s enterprise-grade benefits and gives confidence to any Rancher users currently using Longhorn in production.  

Enhanced Visibility, Operations Support and Maintenance Functionality 

Longhorn 1.1 brings better insights and functionality to an organization’s storage infrastructure without compromising on its user-friendly simplicity and reliabilityThis is through: 

  • New integrated support for Prometheus monitoring  
  • New support for CSI Snapshotter, which enables users to easily create and restore backups via ‘kubectl 
  • Enhanced node maintenance capabilities with support for Kubernetes drain operations 

These improvements give Rancher users complete access to real-time metrics of their storage health and let them maintain their storage volumes alongside managing their Kubernetes clusters. This can all be operated within the Longhorn console, which is easily accessible via the Rancher platform 


Image 1Longhorn’s comprehensive real-time view of performance metrics 

Increased Resilience 

Longhorn 1.1 also buildresilience into resourceconstrained Kubernetes environments like the edge with its new Data Locality feature. Rancher users can have confidence about storage and performance at the edge, as this new Longhorn feature keeps a storage replica local to the workload – ensuring storage will not be lost even if connectivity is lost.  

Rancher and Longhorn Together 

Together with Rancher, SUSE’s Kubernetes management platform, Longhorn makes the deployment of highly available enterprise-grade persistent storage easy, fast and reliable. As the first cloud native storage built for the edge, Longhorn empowers users to do more with their Kubernetes environments 

Existing Rancher users can download and install Longhorn directly from Ranchers app catalog. Longhorn remains an open source CNCF project and is free to download and use. Rancher customers can now purchase premium support through SUSE Support Services. There are no licensing fees, and node-based subscription pricing keeps costs to a minimum. 

Join the next community meetup where we will be exploring how Rancher users can leverage the new Longhorn features across their edge environment 


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Wendie Cheung Senior Global Product Marketing Manager - Cloud Native @ SUSE