High Availability with DRBD Reactor & Promoter
In this blog post, we discuss the DRBD® Reactor and Promoter plug-in. Please read the overview blog post first if you’re looking for a general introduction to DRBD Reactor. This DRBD Reactor & Promoter post first appeared in February 2022. We have updated it for technical accuracy and clarity, referencing a new chapter in the […]
Open Source, Open Hearted: LINBIT’s Shift Towards a More Authentic Newsletter
When it comes to company newsletters, the traditional approach has been maintaining a formal, marketing-driven tone. However, as the business landscape evolves, I believe that many companies are shifting towards a more personal and community-focused approach to their newsletters. I feel that this is especially true in the open-source software industry, where transparency, collaboration, and […]
DRBD Quorum Implementation Updates
The Origins With version 9, we introduced the capability of building clusters larger than two nodes to DRBD®. That gave us the means to implement the concept of quorum and eliminate the old plague of many clusters: the split-brain. The concept is intriguingly simple. A partition of the cluster may modify the data when it […]
DRBD’s Hardware & Environment Requirements
Whether you are considering DRBD® as a data replication solution to achieve high-availability or disaster recovery in your deployments, or you are seasoned in its use already, there are some hardware and environment requirements that you should consider. Memory Requirements and Maximum Device Size DRBD can replicate block devices in real-time or asynchronously, depending on […]
Upgrading DRBD Has Never Been Easier
As DRBD® development continues to move forward with the new and exciting 9.2.0 release, it has never been easier to upgrade to the latest version of DRBD. DRBD’s wire-protocol compatibility has recently expanded, enabling replication between DRBD 8.4 and the latest versions of DRBD 9. Upgrading From DRBD 9 Upgrading from DRBD 9 to a newer version of […]
AWS Marketplace Listing for LINSTOR, DRBD, & DRBD Reactor
It has never been easier to use LINBIT®’s suite of storage and high availability (HA) tools in AWS. LINBIT recently added a free to use AMI listing to the AWS Marketplace based on the latest Ubuntu LTS release with LINBIT’s Ubuntu Personal Package Archive (PPA) preconfigured and LINBIT’s packages preinstalled. What’s in the Box? Out […]
Deploying LINSTOR by Using a Juju Charm for Production-Ready Kubernetes Storage
This blog is a walk-through tutorial on how to deploy LINSTOR®, by using a LINBIT® authored Juju charm, into a MicroK8s environment. You can use LINSTOR as a full-featured and production-ready replacement for MicroK8s’s “hostpath” storage. Defining Terms LINSTOR is an open source software-defined storage (SDS) management solution developed by LINBIT. LINBIT also develops DRBD®, […]
Creating a Self-healing Cluster Using LINSTOR’s Auto-evict Feature
When it’s time for the satellite to leave the cluster, the controller takes action! LINBIT® introduced LINSTOR®’s auto-evict feature starting with LINSTOR version 1.10. In simple words, the feature evicts one of the satellite nodes from the cluster. But the possibilities that the feature opens up for you, including creating a self-healing cluster, are more […]
Software-Defined Storage Solves High-Availability & Disaster Recovery Problems
Software-defined storage (SDS) is a technology used in data storage management that intentionally divides storage duties of software and hardware1. Software is responsible for: Provisioning capacity Protecting data Controlling data placement Physical hardware is where the actual data (the 0s and 1s) is2 stored. SDS allows the storage hardware to be replaced, updated, and extended without […]
Using Virtual Data Optimizer (VDO) with DRBD on RHEL 9 Tech Guide
The purpose of this guide is to provide installation and configuration instructions for implementing Red Hat’s Virtual Data Optimizer (VDO) and LINBIT®’s DRBD®. VDO is a virtual block device driver that provides inline deduplication, compression, and thin provisioning for block storage in Linux. VDO operates within the Linux kernel and is managed by LVM. DRBD […]
