INTERVAL subparameter

The type 89 record has a default interval value of 60 minutes, which is also the maximum interval value. The type 89 record is always synchronized to the start of the hour (i.e. 00 minutes, 00.00 seconds after the hour). Under the proper conditions the SMFPRMxx INTERVAL subparameter can set the interval at which type 89 records are written. The INTERVAL subparameter can also influence the way that SMF reports task and function time, when used in conjunction with the INTVAL and SYNCVAL parameters. See INTVAL and SYNCVAL parameters for details.

If you have provided an INTERVAL, either through a numeric value or through the SMF suboption, its value is used for the type 89 interval only when that value can evenly be divided into 60 minutes. If you have used the NOINTERVAL subparameter or provided no INTERVAL parameter, the default (60-minute) interval is used for the type 89 records. Regardless of the interval value used, type 89 records are always synchronized to the start of the hour.

In the following example, the installation has set interval recording so that no more than 2 hours of accounting data is lost. This value will result in the use of 60 minutes as the interval for type 89 records.

 INTERVAL(020000)

In the next example, the installation has set interval recording to 30 minutes. Because this value is both less than 60 minutes and divides evenly into 60 minutes, one or more type 89 records are written every 30 minutes synchronized to the start of the hour.

 INTERVAL(003000)