In the Mainframe Navigation view, the z/OS datasets are shown when you expand the Datasets folder of a z/OS node.

This document covers the following topics:

• Filtering z/OS Datasets

• Compressing a z/OS Dataset

• Displaying the Properties of a z/OS Dataset

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Filtering z/OS Datasets

Before displaying z/OS datasets, you can define a filter so that only those datasets are shown which correspond to your filter criteria.

To define a filter

1. In the Mainframe Navigation view, select the Datasets folder in the appropriate node.

2. Invoke the context menu and choose Filter.

   Or:
   Press F3.

   The following dialog box appears:

   

3. Enter the filter criteria.

   Option	Description
   Dataset name	Enter the datasets that are to be shown. For example, when you specify "ABC*", only the dataset names starting with these characters will be shown.
   Volume	If you do not specify a volume, the dataset list is created from the catalog. If you do specify a volume, the dataset list is created from the VTOC of that volume.
   Password	Enter the system password if dataset is protected.

4. Choose the OK button.

Compressing a z/OS Dataset

You can compress a partitioned z/OS dataset (PDS).

To compress a z/OS dataset

1. In the Mainframe Navigation view, select a partitioned dataset either in the Datasets or Volumes folder of the appropriate node.

2. Invoke the context menu and choose Compress.

   A dialog box appears, asking to confirm the compress function for the selected object.

3. Choose the OK button to compress the dataset.

Displaying the Properties of a z/OS Dataset

You can display information about a z/OS dataset.

To display the properties of a z/OS dataset

1. In the Mainframe Navigation view, select a dataset in the Datasets folder.

2. Invoke the context menu and choose Properties.

   Or:
   Press ALT+ENTER.

   A properties dialog box appears.

Sequential and Partitioned Datasets

The following information is shown on the Server page of the properties dialog box:

Option	Description
Volume	Serial number of the volume on which the dataset is allocated.
Device type	If a volume is not specified, this is the generic identifier from which a volume is to be selected (e.g. 3380).
Organization	For example:
	PO	PDS
	PS	Sequential dataset
	DA	Direct access
Record format	For example:
	FB	Fixed block
	VB	Variable block
	FBA	Fixed block, ANSI control characters
Record length	Logical record length in bytes.
Block size	Block size in bytes.
Allocation type	Space type for dataset. Possible values:
	BLK	Blocks
	CYL	Cylinders
	TRK	Tracks
First extent	Initial quantity allocated.
Second extent	Additional quantity to be allocated if dataset fills.
Security	Security status. Possible values:
	NONE	Not password-protected.
	READ	Password-protected for read and write operations.
	WRITE	Password-protected for write operations.
Allocated cylinders/tracks	Number of cylinders or tracks allocated.
Allocated extents	Number of extents, 1 to 16.
Percentage used	Percentage of dataset used.
Creation date	Dataset creation date in format YYYY-MM-DD.
Last reference	Date of last access in format YYYY-MM-DD.
Expiration date	Date when the dataset expires in format YYYY-MM-DD. Until this date is reached, each attempt to update or delete the dataset causes a console message, requiring an operator reply.
Partitioned dataset	These fields appear only if the dataset is partitioned.
	Number of members	Number of members in the dataset.
	Directory blocks	Number of directory blocks.
	Unused blocks	Number of unused directory blocks.
SMS attributes	These fields appear only if SMS attributes have been defined for the dataset during allocation.
	Management class	The management class used to obtain the management-related data for SMS (migration, backup and retention criteria) to allocate the dataset.
	Storage class	The storage class used to obtain the storage-related data for dataset allocation.
	Data class	The data class used to obtain the data-related information (SPACE, LRECL, etc.) for dataset allocation.