Issue the ANALYSIS command only when you suspect that one or more users or jobs are having problems accessing a PDSE or PDSE1. This command and the FREELATCH command use a sampling algorithm that interrogates the state of the PDSE or PDSE1 every hundredth of a second for the number of retries that the user specifies (the default is 1500 retries, which is approximately 15 seconds). Errors are reported only if the state of the PDSE or PDSE1 does not change.