Virtual TapeServer 6.04.01 Installation Guide

Configuring EMS Communication

To automate the process of mounting and dismounting virtual tapes, you must configure the

Event Management System (EMS) on Virtual TapeServer (VTS). The EMS service starts the

EMS distributor on the NonStop server by issuing a Tandem Advanced Command Language

(TACL) command. The distributor notifies the VTS EMS service when an EMS message is

posted on the NonStop server. These EMS messages relate to mount requests, VTSPolicy

commands, TACL heartbeat messages, and critical and error event messages.

Perform the following steps for each NonStop server to which VTS will send messages.

Requires the Edit VTS Configuration File access right to edit the configuration file, and

System Maintenance Functions or Virtual Tape Mounts and Locks access right to restart the

EMS service

To configure EMS

1. On the NonStop server, create a user account that VTS can use for the EMS distributor.

2. On VTS, modify the VTS configuration file to configure EMS, as follows.

Note A default configuration file is defined for each VTS server. To override the default

settings, you must define settings as described below.

a. Click Supervisor Functions on the navigation pane.

b. Click Edit VTS Configuration File.

c. Add or modify the following global EMS parameters at the bottom of the file that is

displayed:

Parameter Description Values Required

ems_enable Enables EMS. Specifically, this

parameter defines whether to

run the processes for monitoring

EMS messages.

Default value: NO

YES or NO Yes

ems_hostnames Identifies the NonStop servers

for which a Telnet session will

be established. Each specified

hostname can then have other

parameters associated with it.

See the next step for a list of

these parameters.

List of

hostnames

separated by

spaces

Yes