Conclusions
AME benchmarks are needed to direct research toward today’s pressing problems
Our availability benchmark methodology is powerful
- revealed undocumented design decisions in Linux and Windows 2000 software RAID implementations
- transient error handling
- reconstruction priorities
Windows & Linux SW RAIDs are imperfect
- but Windows is easier to maintain, less likely to fail due to double faults, and less likely to waste disks
- if spares are cheap and plentiful, Linux auto-reconstruction gives it the edge