Table 2 Performability framework

Performance

• Failure rate (λ)

• Recovery time

• Maintenance rate (μ)

• Fault detection, isolation, containment time

• Recovery success rate (ρ)

• Maintenance success rate

• Downtime

Throughput

• Failure rate (λ)

• Downtime

• Maintenance rate (μ)

• # NINES

• Maintenance method

Speed/speedup

• Redundancy mode

• Recovery mode

• Maintenance mode

Bandwidth

• Failure rate,

• Recovery success rate (ρ)

• Redundancy mode

• Detection