The summary information for relative record data sets is relatively straightforward, especially compared to the previous cluster types.
The total number of data records in the data set. This is the number of used or active slots that contain user data.
This is the total number of bytes or characters contained in the data records of the cluster.
This is the total number of slots that exist in the data set. It combines the total used and the total empty.
The percent used tells what percentage of the slots in the cluster are already being used.
This number tells you how many empty slots exist beyond the last slot that is being used.
This is the number of control intervals that occur prior to and including the last control interval that contains a data record.
This is the number of control intervals between the last control interval that contains a data record and the end of the data set (high allocated RBA).
This value is the percentage of control intervals in the data set that occur prior to and including the last control interval that contains an active record.
Unlike the other types of clusters, this value is a constant value for each data set. It is dependent on control interval size and the number of slots per control interval. The amount of dead space in any RRDS's control intervals can be calculated as follows:
(CI size - 4) - ((LRECL + 3) x Slots per CI)
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