# Dataset Attributes Inefficient Blocksize Summary

This group of attributes monitors the Top N data sets in terms of used space, where the BLKSIZE is less than or equal to 128 bytes (in other words, the 'inefficient' threshold that the product defines). You define the value of n in the Dataset Attributes Data Collection dialog box. See Dataset Attributes Database for more information.

Address: Address of detail information in the data space of the data set.

ALET: ALET (Address List Entry Token) of information in the data space of the data set.

Allocated GB: Allocated GB for the data set.

Allocated MB: Allocated MB for the data set.

Allocated Tracks: Allocated tracks for the data set.

BLKSIZE: The block size of the data set.

Creation Date: The date that the data set was created.

Dataset Name: The name of the data set.

DSORG: The data set organization.

Extents: The number of extents.

LRECL: The logical record length.

Managed System: An internal node name used to identify the system from which this row of data was obtained.

RECFM: The record format of the data set.

Reference Date: The date that the data set was last referenced.

Timestamp: The time that the row was created.

Unused GB: Unused GB for the data set.

Unused MB: Unused MB for the data set.

Unused Tracks: Unused tracks for the data set.

Used GB: Used GB for the data set.

Used MB: Used MB for the data set.

Used Tracks: Used tracks for the data set.

Volser: The VOLSER on which the data set is located.