EVMS
The EVMS Project attempts to provide unparalled flexibility and extensibility in managing storage. The architecture introduces a plug-in model that allows for easy expansion or customization of various levels of volume management.

LVM
(Sistina) LVM allows you to create file systems spanning multiple disks, create and manage large filesystems, extend and shrink online file systems, move data physically from one disk to another without changing the position in the file tree, and much more.

OpenSSI
The OpenSSI project leverages both HP's NonStop Clusters for Unixware technology and other open source technology to provide a full, highly available SSI environment for Linux. Goals for OpenSSI Clusters include availability, scalability and manageability, built from standard servers. Technology pieces include: membership, single root and single init, cluster filesystems and DLM, single process space and process migration, load leveling, single and shared IPC space, device space and networking space, and single management space. The OpenSSI Clustering project leverages the Cluster Infrastructure (CI) for Linux project.