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 […]
Highly Available NVMe-oF on RHEL 9 Tech Guide
The Highly Available NVMe-oF on RHEL 9 tech guide will instruct the reader on how to configure a Highly Available (HA) NVM Express over Fabrics (NVMe-oF) cluster using DRBD® 9 from LINBIT® and the Pacemaker cluster stack on Red Hat Enterprise Linux (RHEL) 9. NVMe-oF is the concept of connecting to a remote NVM Express […]
NuoDB in EKS with LINSTOR for Persistent Storage
In the summer of 2019 LINBIT® and NuoDB collaborated on some testing to see how well the two performed together in Google Cloud Platform (GCP). The original blog can still be read here if you’re curious what was written. Spoiler: NuoDB and LINSTOR® performed very well together, with LINSTOR’s synchronous replication between zones adding negligible overhead to […]
Turning to Open Source is a Win For Every Organization
This is a guest post by Cybernews. Original blog found at cybernews.com Every organization seeks for its data to be available in the most secure and convenient way possible. However, securing large amounts of information is often a tough task. Luckily, one of the solutions is software-defined storage or SDS. Even though the term “software-defined” has […]
WinDRBD + Proxy: Block-Based Replication for Windows Servers
We have recently released our WinDRBD® product, which we have been working on for a long time, to the open source world as version 1.0. WinDRBD takes DRBD® and allows you to do block-based replication on Windows servers. Since the initial 1.0 version release in 2022, we have received good feedback and we are learning […]
DRBD Read-Balancing
DRBD’s read-balancing feature has been available since version 8.4.1. This feature enables DRBD® to balance read requests between the Primary and Secondary nodes. You configure read-balancing in the “disk” section of the configuration file(s). On the read intensive workloads, balancing read I/O operations between nodes can give you significant improvements. If your network gear allows, […]
Comparing LINSTOR, Ceph, Mayastor, & Vitastor Storage Performance in Kubernetes
This is a guest post by Andrei Kvapil, Solutions Architect at Flant.
DRBD Reactor – Recovering an Isolated DRBD Primary
This blog post will show how DRBD® has recently added support for secondary –force can be of great use when combined with DRBD Reactor. In short, secondary-force reconfigures the DRBD device so that the suspended I/O requests and newly submitted I/O requests will terminate with I/O errors. Motivation Imagine a three-node setup where your current active […]
Highly Available LINSTOR Controller with Pacemaker
*UPDATE MAY 2022: This article was originally published back in 2018. Three years before our DRBD-Reactor project. With the release of the DRBD-Reactor software we now suggest using that to make a Highly available LINSTOR® Controller. Instructions for this can be found in our User’s Guide. However, using Pacemaker is still a valid option. So […]
