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Ceph

The Ceph filesystem is the primary storage system for bulk warm storage needs within the PARCC ecosystem. Researchers will see the benefit from Ceph by utilizing the system for staging of data during off times in usage.

Cluster of primary storage servers at Penn

System Specifications

ComponentSpecification
Storage SystemCeph (Distributed Object, Block, File Storage)
OSD Nodes8× OSD Nodes
Drives per Node22× 24 TB Enterprise HDDs
Erasure Coding ProfileLikely 4+2 for space-efficient redundancy
Usable Capacity~2.5 PB (after erasure coding and overhead)
Expected Performance~15 GB/s aggregate throughput (read/write)