Type              (VSAM)

DESCRIPTION
"Type" shows the dataset type, or database organization.


VALUES
The dataset "Type" indicates the file organization. Each of these types of 
database files are managed by the VSAM access method. The available types are:

   KSDS - Keyed Sequence Data Set 
   ESDS - Entry Sequence Data Set 
   RRDS - Relative Record Data Set.


INTERPRETATION
A KSDS file requires a key for access. The keys are kept in an index file. Thus,
a KSDS dataset is broken into two files, data and index. Sun MTP uses the logical
filename for a dataset, defined in the Sun MTP File Control Table (FCT), to 
identify these files, with a .dta and .idx extension for the data and index 
files, respectively.

The ESDS and RRDS file organizations do not require an index file. Therefore, 
the filename defined in the FCT corresponds to the actual system filename. 


CONCLUSIONS
You should verify that a dataset's "Type" is consistent with respect to the
application programs accessing a particular "Dataset". Build a particular "Type"
of dataset with the Sun MTP Record Editor.
