DRBD9, cinder, nova
Philipp Reisner is the founder, CEO of LINBIT and author of DRBD. LINBIT grew out of a local Linux service provider into an international support provider for open source HA cluster software (focusing particularly on Pacemaker & DRBD). DRBD was started in 2000 and became part of the Linux kernel in 2.6.33.
Philipp has guided LINBIT’s upstream contributions to a number of open source infrastructure and clustering projects, including OpenStack Cinder and Kubernetes.