Software-Defined Storage Solutions

LINBIT SDS delivers ultra-fast, resilient block storage for private cloud infrastructure. The SDS solution enables commodity hardware to create high performance storage clusters. Thus LINBIT’s custom open source software-defined storage solution is perfect for cloud environments because it ensures application availability as your storage scales. 

Software Components

LINSTOR - Controller, Satellite, and User Interface

The LINSTOR® system – one key software component of LINBIT SDS – consists of multiple server and client components.

  1. A LINSTOR controller manages the configuration of the LINSTOR cluster and all of its managed storage resources.
  2. The LINSTOR satellite component manages creation, modification and deletion of storage resources on each node that provides or uses storage resources managed by LINSTOR.
  3. All communication between LINSTOR components uses LINSTOR’s own network protocol, based on TCP/IP network connections.
  4. The storage system can be managed by directly using a GUI or a command line utility to interact with the active LINSTOR controller. Alternatively, users may integrate the LINSTOR system into the storage architecture of other software systems, such as Kubernetes.
  5. Seamless integration to various cloud environments with many additional software including Ha Controller, STORK, Kubectl Plugin, Operator

DRBD - The de facto standard Block Storage Replication tool

DRBD® – the other key software component of LINBIT SDS – is a distributed replicated storage system for the Linux platform.

It is implemented as a kernel driver, several userspace management applications, and some shell scripts. DRBD is traditionally used in high availability (HA) computer clusters, but it can also be used to create larger software defined storage pools with a focus on cloud integration.

Companies implement software-defined storage (SDS) in order to easily provision and manage data storage, independent of the underlying hardware  environment.

Since the software simply presents a block device, users do not need to use complex, shared file systems. Because we can use a single node with a filesystem on top of a block device, backing disk failure is transparent to the end user.

SW/HW Agnostic

All LINBIT solutions work with COTS – commodity off the shelf (hardware) – or with plain VMs on a public or private cloud. Thanks to the OS kernel-based data replication software LINBIT’s solutions do not require SANs, shared storage, special fencing devices, or any other type of special enterprise hardware. 

As a provider, your clients demand a high-performance, low-latency cloud environment. Leveraging LINBIT SDS software, you can build your cloud on common off-the-shelf hardware; whether those servers are spinning disk, all-flash, or hybrid. These setups can be hyperconverged or dedicated storage/compute servers. LINBIT’s robust open-source software-based platform enables the deployment of large server clusters configurable to your specific use-case, eg edge-computing.

Latest LINBIT SDS Feature: GUI

The Graphical User Interface simplifies multi-cluster management and complex monitoring so your team can just go back to enjoying the power of Kubernetes persistent storage. Easy to install, easy to use.


  • Storage pool dashboard with per node usage
  • Built-in alerts and monitoring
  • Simple Navigation system

on IBM LinuxONE

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Technical Benefits

  • Open source
  • Scale-out persistent storage
  • In-kernel data replication
  • Ultra-fast performance
  • Low CPU utilization

Business Benefits

  • Data Protection
  • 24 x 365 remote support
  • Lower TCO than proprietary solutions
  • Remote installation option
  • OpenShift primed certified

Public & Private Cloud Storage

Public Cloud Storage

Private Cloud Storage



Underlying Hardware Options

x86_64 (Intel/AMD)



s390x (LinuxOne)




Do you support RDMA/Infiniband?

Yes. LINBIT has an RDMA (verbs) API. The DRBD software works over Infiniband, RoCE, or iWarp to overcome the performance limitations of TCP/IP.

Do you work with databases?

LINBIT SDS is perfectly suited for database workloads and structured data. We’ve reached up to 400,000+ IOPS for a single volume.

What platforms are supported?

  • Red Hat Enterprise Linux
  • SUSE Linux Enterprise Server
  • Oracle Linux 6.3+ (RHEL Compatible or UEK)
  • Ubuntu Server Edition Find out more on our Support Page.

  • Support Subscriptions for Production Deployments

    We believe strongly in customer satisfaction. That’s why LINBIT offers 24/7 support services from our global team.
    The LINBIT engineers are perfectly trained to help your team design, deploy, and support your infrastructure.

    Open Source



    LINBIT SDS Support


    LINBIT SDS Support

    Your open source project is mission-critical so our team is here to help. We begin most relationships with a technical consultation. Reach out to LINBIT with your questions and project goals to begin today!

    Let's talk!