Kubernetes Operator: LINSTOR’s Little Helper

Before we describe what our LINSTOR Operator does, it is a good idea to discuss what a Kubernetes Operator actually is. If you are already familiar with Kubernetes Operators, feel free to skip the introduction. Introduction CoreOS describes Operators like this: An Operator is a method of packaging, deploying and managing a Kubernetes application. A […]

DRBD/LINSTOR vs Ceph – a technical comparison

INTRODUCTION The aim of this article is to give you some insight into CEPH, DRBD and LINSTOR by outlining their basic functions. The following points should help you compare these products and to understand which is the right solution for your system. Before we start, you should be aware of the fact that LINSTOR is […]

Containerize LINSTOR

LINBIT and its Software-Defined Storage (SDS) solution LINSTOR has provided integration with Linux containers for quite some time. These range from a Docker volume plugin, to a Flexvolume plugin, and recently, a CSI plugin for Kubernetes. While we always provided excellent integration to the container world, most of our software itself was not available as […]

Rest Easy

Once upon a time, in an office far far away, LINSTOR was at v0.2 when I started using our own python API to write an OpenStack volume driver for LINSTOR. This LINSTOR API would allow a python script to provision and manage LINSTOR volumes. Therefore, Linstor.resource_create(rsc_name=”mine”, node_name=”not_yours”) would create a LINSTOR resource called “mine” on […]

Meet us at Cloudfest in Rust, Germany!

Come and meet LINBIT at CloudFest 2019 in Europa-Park, Rust, Germany. (23rd – 29rd of March 2019) CloudFest has made a name over the last few years as one of the the best cloud-focused industry events in which to network and have a good time. This year more than 7,000 people are attending the event. […]

LINSTOR grows beyond DRBD

For quite some time, LINSTOR has been able to use NVMe-oF storage targets via the Swordfish API. This was expressed in LINSTOR as a resource definition that contains a single resource with one backing disk (that is the NVMe-oF target) and one diskless resource (that is the NVMe-oF initiator). Layers in the storage stack In […]

Speed Up! NVMe-oF for LINSTOR

What is NVMe? The storage world has gained a number of new terms in the last few years. Let’s start with NVMe. The abbreviation stands for Non-Volatile Memory express, which isn’t very self-explanatory. It all began a few years back when NAND Flash started to make major inroads into the storage industry, and the new […]

High Level Resource API – The simplicity of creating replicated volumes

In this blog post, we present one of our recent extensions to the LINSTOR ecosystem: A high-level, user-friendly Python API that allows simple DRBD resource management via LINSTOR. Background: So far LINSTOR components communicated by the following means: Via Protocol Buffers, or via the Python API that is used in the linstor command line client. Protocol […]

How to Setup LINSTOR in OpenStack

This post will walk through the installation and setup procedures for deploying LINSTOR for a persistent, replicated, and high-performance source of block storage within DevStack version of OpenStack running on an Ubuntu host. We will refer to this Ubuntu host as the LINSTOR Controller. This setup also requires at least one additional Ubuntu node handling […]

Why you should use LINSTOR in OpenStack

With the LINSTOR volume driver for OpenStack, Linux storage created in OpenStack Cinder can be easily provisioned, managed and seamlessly replicated across a large Linux cluster. LINSTOR is an open-source storage orchestrator designed to deliver easy-to-use software-defined storage in Linux environments. LINSTOR uses LINBIT’s DRBD to replicate block data with minimal overhead and CPU load. […]