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Field Descriptions

Component Statistics
CIs per CA

A control area is a contiguous area of DASD that ranges in size from one track to one cylinder. Displays the number of Control Intervals in each Control Area.

Total Freespace

Amount of space allocated to the VSAM file which does not contain a control interval.

High Allocated RBA

The number of bytes of space being managed by the VSAM file.

High Used RBA

The highest byte number within a used control interval.

Percent Free

Freespace as a percentage of the high used RBA.

Physical Record Size

The minimum amount of data that is transferred together which is at least one control interval.

Physical Record / Track

Number of physical records in each DASD track.

Tracks / Control Area

Number of tracks in each control area.

Record Statistics

This section contains counts of the number of data records and the number of times data records have been inserted, deleted, updated, and retrieved since the initial load of the VSAM file. The following counts are displayed:

Total

The total number of records actually in the data component. This statistic is not maintained when the data set is processed in control interval mode.

Deleted

The number of records that have been deleted from the data component.

Inserted

For a key-sequenced data set, the number of records that have been inserted into the data component before the last record; records originally loaded and records added to the end are not included in this statistic. For relative record data sets, it is the number of records inserted into available slots; the number of records originally loaded are included in this statistic.

Updated

The number of records that have been retrieved for update and rewritten. This value does not reflect those records that were deleted, but a record that is updated and deleted is counted in the update statistics.

Retrieved

The number of records that have been retrieved from the data component, whether for update or not for update.