Memorex LOCK - VERSION 2-24 Especificaciones descargar pdf (Pagina 126)

Overview

3-2 BIM-EPIC Installation and System Guide

Overview

The BIM-EPIC Autoattach feature is used to automatically attach tape drives to virtual

machines when datasets are opened, and to detach the drives when datasets are closed.

The Autoattach feature includes:

•

two new CP commands (VATTACH/VDETACH) added to the CP nucleus

• a command processing module added to the CP Load List

The VATTACH and VDETACH commands perform the same functions as the VM ATTACH

and DETACH commands, but they operate in silent mode. They do not print any messages

about execution success or failure. This allows BIM-EPIC to attach and detach tape drives

without generating unnecessary operator console messages every time a tape drive is attached

or detached.

An additional feature of VDETACH is that it does not automatically unload a tape, thereby

leaving the tape accessible to another virtual machine without need for operator intervention.

(In earlier releases of VM, there was no LEAVE option on the DETACH command.)

Attaching and detaching a tape drive without affecting the external operational environment

provides another operational advantage: VSE guests can attach a tape drive just to determine

whether a needed tape is mounted on it. If it isn't, the drive is detached and nothing else is

affected. This improves tape drive availability by reducing operator involvement.

Using Autoattach with BIM-EPIC requires setting the VM and AUTOATT configuration

options to YES, and installing the VATTACH and VDETACH commands into the CP

Nucleus.

There are two ways of installing the BIM-EPIC AUTOATTACH feature into the CP

environment:

Add the VATTACH and VDETACH commands to the CP Nucleus.

2. Add the VATTACH and VDETACH commands dynamically.

For VM/ESA and VM/SP releases prior to VM/ESA Version 2, Release 2, only the first

method can be used since dynamic command definition is not available in earlier releases.

For VM/ESA Version 2, Release 2 and above, the second method is recommended. It

requires considerably less user effort and does not require any modifications to the CP

environment. The first method involves a lengthy update/assembly process and modification

of the CP Nucleus.

If the second installation method is to be used, read the How to Read the Instructions portion

of this Overview and then go directly to the Autoattach Installation Via Dynamic Command

Definition section.

Description

VATTACH and

VDETACH

Autoattach

Requirements for

BIM-EPIC

Installation

Assumptions

1 2 ... 121 122 123 124 125 126 127 128 129 130 131 ... 358 359

Comentarios a estos manuales

Sin comentarios

Memorex LOCK - VERSION 2-24 Especificaciones Pagina 126

Comentarios a estos manuales

Relacionado con productos y manuales para Software Memorex LOCK - VERSION 2-24