This edition of the LINBIT Kubernetes newsletter begins with some big software news. We recently released LINSTOR Operator 2.10.0 (and a follow-up bug fix: LINSTOR Operator 2.10.1).
Version v2.10.0 brought long awaited support for ReadWriteMany (RWX) volumes, along with Volume Group Snapshot support, integrations for Cluster API, and more.
To use RWX after upgrading to v2.10.0, create a new PersistentVolumeClaim with “ReadWriteMany” access mode. Internally, this will spawn a new NFS server process, managed and made highly available using DRBD Reactor. Since we use DRBD Reactor, the volume needs to be configured for quorum (or fencing), so generally, 2 replicas are required. In addition, since NFS is used, do not expect the matching performance compared to ReadWriteOnce volumes.
Learn more about 2.10.0: https://hubs.ly/Q03VFjfq0
Access the latest version, 2.10.1: https://hubs.ly/Q03VFgSB0
You can also read the blog post, ‘Creating ReadWriteMany Persistent Volumes in Kubernetes by using LINSTOR,’ which offers additional exciting information about the release: https://hubs.ly/Q03VFcNf0
Another recent Kubernetes blog post is ‘Homelabbing LINSTOR in Kubernetes,’ which highlights the open source benefits of our products. People often use homelab setups to vet a solution, either for nominal use in a home environment or before deploying a solution in a production or enterprise environment: https://hubs.ly/Q03VFjYf0
Moving onto events, we have some big Kubernetes news there too. LINSTOR for Kubernetes lead developer, Moritz Wanzenböck will present at the Cloud Native Computing Foundation (CNCF) community group virtual conference, CozySummit Virtual 2025, on December 3rd.
At the conference Moritz will give a deep dive into the technologies that power the CozyStack storage infrastructure: LINSTOR and DRBD. Moritz will show how these storage technologies integrate with virtualization and backup solutions, and show the stack in action: https://hubs.ly/Q03VFdgY0
Regarding social media, we came across a DRBD mention in the Kubernetes Reddit subdomain. We will share the post ‘Use-case for DRBD?’ below in case it will be of interest to you: https://hubs.ly/Q03VFcn00
Last but not least, here’s a LINBIT community forum post that highlights a LINSTOR Operator feature that helps avoid “version mismatch” issues when using an external LINSTOR cluster with Kubernetes: https://hubs.ly/Q03VFgxV0
Our forum is a great place to reach our developers and community members to discuss our software, so please join us there in the future.
