Cache cooperatively, sharing distributed memory. Caveats Machines must have fast interconnect. Zebra Combines RAID, LFS, and networking. Each client accumulates data to form a segment. That segment is broken up into stripe units that are written to individual storage servers.
Parity is computed locally at client.
Distributed state updated atomically using deltas. Zebra stripes across all storage servers. Open Issues Scalable, distributed meta-data management and reconfiguration. Scalable log cleaning. Entry specifies a specific machine.