Vendor Certification Expressions: Expression Operators, Functions, and Global Variables › Functions and Global Variables › availabilityWithSysUptime Function

availabilityWithSysUptime Function

This function calculates availability as a percentage using sysUptime and the poll duration, granting a grace period.

Syntax

This function has the following format:

Object availabilityWithSysUptime (Long sysUpTime, Long duration)

Parameters

sysUpTime

The time (in centiseconds) since the network management portion of the system was last reinitialized.

duration

The poll duration time in seconds. Use the global variable _rspDuration. See the Advanced example for more information.

Return Values

Returns the availability as a percentage (0–100), or returns "null" when invalid data is passed.

Examples

The following expression produces the following result for a sysUpTime of 30000 and a poll duration of 300:

Expression:

availabilityWithSysUptime (sysUpTime, duration)

Result:

100

The same expression produces the following result for a sysUpTime of 6000 and a poll duration of 300:

Result:

20

The same expression produces the following result for a sysUpTime of 30005 and a poll duration of 300:

Result:

100

Advanced Example

The following expression is taken from “System Statistics” Vendor Certification:

Availability=availabilityWithSysUptime(sysUpTime,_rspDuration)