This section clarifies the concepts and values associated with
specific
attributes.
- Percent used and free
-
- Percent Used and Free for PDS, PDSE, and HFS data sets is calculated
based
on the allocated and used tracks from the VTOC, and does not take
into account
internal usage or wastage within the data set.
- Tracks Used
is set equal to Tracks Allocated for PDSE and HFS data sets.
- For VSAM data sets Percent Used and Free is based on the volume-level
High Used and High Allocated RBAs (relative byte addresses).
- Space values
- The following details
govern the collection and display of space values
in the product:
- Catalog Values
- The following
details pertain to catalog values in the product:
- The VTOC
Index (SYS1.VTOCIX.Vnnnnnn) and VVDS
(SYS1.VVDS.nnnnnn) are not included in the
Uncataloged
Summary.
- Because the Dataset Attribute database is built starting
at the Volume
level, there might be entries in a Catalog that are not represented
in the
Catalog Detail display. The entries that are not displayed can include
the
following:
- Data sets that are in the catalog but do not physically
exist on any volume
- Tape data sets
- VSAM Clusters that
do not physically exist on disk
- Datasets that are cataloged
in more than one catalog