How Consequential are Pages and Faults?
Q: The Work with System Status (WRKSYSSTS) screen shows the database and nondatabase faults plus the database and nondatabase pages. What exactly are the pages? What kind of number should I look for when monitoring the system in these values? I've been told that I shouldn't worry too much about the pages. Is this correct?
A: The database and nondatabase pages on the WRKSYSSTS screen show the rate at which data is being brought in from the disk system into that pool of memory. Each page consists of 16KB of data. You don't need to worry about this number much. Use it to help monitor faults by comparing the page values to the fault values. For instance, if you show a paging rate and a fault rate of 200 each, it usually means that none of the data that the job is trying to access is in memory. If you are performing a job such as a backup, this does not represent a problem. Under this circumstance, you don't need to worry about the fault rate, either, because it is non-normal workload processing.
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