DistOS 2019F 2019-11-11
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?