Systems

21 KPIs

% of "dead" servers

% of (assigned) disk space quota used

% of disk space used

% of outage due to changes (planned unavailability)

[Outage due to planned changes] percentage of [total Outage]

% of outage due to incidents (unplanned unavailability)

Availability (excluding planned downtime)

[Actual uptime] percentage of [Planned uptime]

Average % of CPU utilization

Average % of memory utilization

CPU queue length average

Average (CPU queue length)

[1 - (Availability/100)] X 365 X 24 X 60

Maximum CPU usage

Maximum memory usage

Mean Time to Repair (MTTR)

Average of time between resolution of incident and start of incident

Mean-time between failure (MTBF)

Number of alerts on exceeding system capacity thresholds

SUM (Alerts/events exceeding system capacity thresholds)

Power draw % by systems

RISC Asset Efficiency %

asset efficiency = (current capacity X average utilization) / reference capacity

Server to System Administration Ratio

[number of servers] divided by [number of system administrators]

Unit costs of IT service(s)

[cost of providing IT service] divided by [number of units e.g. application transactions, storage GB, number of email accounts, etc.]

x86 Asset Efficiency %

asset efficiency = (current capacity X average utilization) / reference capacity