Distributed-Storage

• Object Storage: RADOS/Ceph Architecture, the CRUSH Placement Algorithm, S3 API Semantics, and Erasure Coding at Scale · 2021-06-21

  A deep exploration of object storage — how Ceph's RADOS and CRUSH algorithm enable scalable, self-managing storage clusters, the S3 API's influence on cloud storage, and how erasure coding reduces storage overhead.

• Distributed File Systems: GFS Design, HDFS Architecture, the Colossus Evolution, and Single-Master Metadata Bottlenecks · 2021-06-18

  A deep exploration of distributed file systems — how Google's GFS pioneered the single-master model, how HDFS adapted it for the Hadoop ecosystem, and how modern systems have evolved beyond the single-master bottleneck.