The Uptime Meter(SM) measures the actual availability of installed Stratus systems worldwide. This meter is re-calculated routinely, based on actual reported service incidents (see availability calculation below for details).

There are two versions of the Stratus Uptime Meter:

ftServer Family

Continuum Family

Availability Calculation

Availability of Stratus ftServer systems and Continuum servers is computed and updated daily based on all reported service incidents over the preceding 6-month period.

Both hardware-related and software-related incidents are included in the availability measurement for both product families.

Definition of Availability

The fraction of a time period that a system is fully operational; for example, if a system is fully operational 100 hours per week, its availability is 100/168 = 60%

Normally expressed in 9's; for example, "five nines" means that a system is fully operational 99.999% of the time, corresponding to less than 5.25 minutes downtime per year

Disclaimer

The Uptime Meter is a measured indicator based on a statistically significant number of operational Stratus systems, however, the actual availability of any particular system may differ.