Storage-Group utilization during a certain time-window
Posted: Thu Dec 22, 2016 8:32 pm
Hello,
z/OS: 2.2
DFSMS: 2.2
We have a dedicated storage group for temporary/'work' datasets. The maximum usage observed over a period of ~4 years was of 40% overall during batch run (i.e. free= ~60%).
Though very recently a %usage of 63% was observed during the batch run, this was there for a period of approximately 15 minutes post which the storage was released and the usage patterns were back to normal.
Have checked all the batch jobs that were executing within +/- 30 minutes time-window of this fluctuation. Verified the JESYSMSG for the usage of the volumes in questions, haven't been able to spot an abnormality there. Have verified the user activity, again by verifying the user-ids JESYSMSG, nothing fishy there as well.
Wanted to know if there is a way to extract the below information for that day's activity (SMF maybe?? Types 72/74?!? unsure):
a. The datasets that were allocated to the storage group in question for the time-interval in question
b. Source of these datasets, job or user
c. Storage used by the individual datasets
Thank you.
z/OS: 2.2
DFSMS: 2.2
We have a dedicated storage group for temporary/'work' datasets. The maximum usage observed over a period of ~4 years was of 40% overall during batch run (i.e. free= ~60%).
Though very recently a %usage of 63% was observed during the batch run, this was there for a period of approximately 15 minutes post which the storage was released and the usage patterns were back to normal.
Have checked all the batch jobs that were executing within +/- 30 minutes time-window of this fluctuation. Verified the JESYSMSG for the usage of the volumes in questions, haven't been able to spot an abnormality there. Have verified the user activity, again by verifying the user-ids JESYSMSG, nothing fishy there as well.
Wanted to know if there is a way to extract the below information for that day's activity (SMF maybe?? Types 72/74?!? unsure):
a. The datasets that were allocated to the storage group in question for the time-interval in question
b. Source of these datasets, job or user
c. Storage used by the individual datasets
Thank you.