---
title: "Mainframe: How to Use 3.4 Option"
description: "DSLIST commands for data sets lits"
url: https://srinimf.com/2016/01/07/dslist-or-3-4-option-different-view-modes-of-data-sets/
date: 2016-01-07
modified: 2026-10-10
author: "Srini"
categories: ["Categories"]
tags: ["DSLIST Data set options"]
type: post
lang: en
---

# Mainframe: How to Use 3.4 Option

![MVS 3.4 option](https://i0.wp.com/srinimf.com/wp-content/uploads/2016/01/srinimf.png?resize=534%2C314&ssl=1)*Mainframe+Jobs*

The commands listed here are for use on the data set list display produced by ISPF option 3.4 or the Data Set Lists (DSLIST) command. Consider trying these commands on your own ISPF data set list.

Related[Here’s a List of Basic ISPF Editor Commands](https://srinimf.com/2015/08/25/ispf-basic-editor-commands-for-software-developers/)

Unlike the line commands used in the previous article, none of these [commands a](https://srinimf.com/2017/07/18/ispf-daily-use-commands-a-quick-guide/)lter data sets or data set members. The SRCHFOR and SAVE commands do create new data sets.

Primary commands for DSLIST include:

• VA, which is “view attributes” mode.
• VS, which is “view space” mode.
• VT, which is “view total” mode.
• VV, which is “view volume” mode.

VV is the IBM default for a data set list display. Although this can be changed on the 3.4 display screen, it’s the best setting for performance when creating a new data set list.

**Read more **

- useful [DSLIST commands](http://enterprisesystemsmedia.com/article/ispf-power-tools-ispf-primary-commands-for-the-data-set-list#sr=g&m=o&cp=or&ct=-tmc&st=%28opu%20qspwjefe%29&ts=1452143710)

Related[How to Design Screen: Top CICS Map Field Attributes](https://srinimf.com/2023/07/09/how-to-understand-cics-bms-map-fields-right-away/)

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