LINBIT develops software-defined storage, high-availability and disaster-recovery software for Linux environments. At its core are DRBD, a distributed replicated block device that mirrors block devices between hosts transparently to applications, and LINSTOR, block-storage management software with cluster-wide volume management. Together they let you build replicated block storage for containers, virtualisation and bare metal, including for Kubernetes through the LINSTOR Operator. LINBIT sells certified binaries and support; the software runs in your own environment, including offline.
LINBIT HA-Solutions GmbH is based in Vienna, Austria; the company also lists LINBIT USA, LLC in Oregon. DRBD is free software under the GNU General Public License version 2. Because you host the software yourself, you decide where the data resides. Organisations should still review the support terms to see whether any remote access to their systems is involved.