Dataspace monitoring

If the DB2/VM Data Spaces feature has been installed, the dataspace class records for each interval and for each monitored database:

- the number of dataspace reads, writes and pagefaults in each pool
- the save interval, the target and the current working set
- the dataspace hit ratio
- the dataspace access hit ratio

Sample Report

The SQL/MF extended counters provide following additional statistics about the dataspace subsystem:

- the number of VM SAVE requests resulting from the SAVEINTV specification and the average number of pages saved per request
- the number of VM RELPAGE requests resulting from the TARGETWS specification and the average number of pages released per request
- the number of prefetch requests and the average number of pages prefetched per request

Sample Report