Failure Data: 2 Internet Sites
Global storage service
- ~500 machines, 4 colo. facilities + customer sites
- all service software custom-written (x86/free OS)
- Read/Write, more complex workload
High-traffic Internet site
- ~5000 of machines, 4 collocation facilities
- ~100 million hits/day
- all service software custom-written (x86/free OS)
- Read mostly
- Read, More HW, Software more mature
Looked at trouble tickets over 3-6 months
Source: David Oppenheimer, U.C. Berkeley, in progress.