DistOS 2019F 2019-11-11

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Readings

NASD & Ceph

Garth A. Gibson et al., "A Cost-Effective, High-Bandwidth Storage Architecture" (1998)
Weil et al., Ceph: A Scalable, High-Performance Distributed File System (OSDI 2006).

Discussion Questions

NASD was motivated by what changes in computer technology?
What is a SAN? An object store (in the context of NASD & Ceph)?
How does RAID relate to SANs?
Does Ceph use a SAN?
What is dynamic subtree partitioning in Ceph? Why is it important?
What is CRUSH in Ceph? Why is it important?
How does Ceph compare to GFS?

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