Terminating z/VSE

To shut down z/VSE connections, use the HALT command (or its more common form: the Z command). Two types of z/VSE shutdown are possible.

In a normal shutdown, issue the command
```
Z NET
```
This lets z/VSE request application programs to disconnect themselves when convenient. They are not canceled immediately. Therefore, when you issue this form of Z command, currently connected programs are not immediately forced to disconnect themselves. Application programs that do not use z/VSE at the time cannot initiate a session after the Z command is given.
If you want to shut down your network as quickly as possible, enter:
```
Z NET,QUICK
```
Application programs not using z/VSE can no longer access it. Existing I/O requests are processed but new I/O requests are not accepted and no new LU-LU sessions are possible. Z NET,QUICK issues VARY NET,INACT commands with the IMMEDIATE option for every active major node.