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International Technical Support Organization Database Systems ...

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When submitting the DataHub <strong>Support</strong>/MVS startup job, you might get an error<br />

like that shown in Figure 130 on page 175 if you did not define the DataHub<br />

<strong>Support</strong>/MVS Tool Dispatcher to VTAM by using the VTAM APPL statement.<br />

$HASP373 STDB2AMQ STARTED - INIT 3 - CLASS A - SYS XA01<br />

IEF403I STDB2AMQ - STARTED - TIME=14.51.59<br />

09 EMQM005C DataHub - Unable to open VTAM ACB. APPLID = EMQMACB1 RC =....<br />

R 9,END<br />

+EMQM025W DataHub - Internal Error - Refer To Trace File ′ DATAHUB.V11....<br />

+EMQM013I DataHub - termination is complete.<br />

...........................................<br />

...........................................<br />

Figure 130. DataHub <strong>Support</strong>/MVS Startup Error<br />

If you get a startup error, you have to pick up the generated APPL VTAM<br />

definition that has been included as the EMQAPPL member of the<br />

DATAHUB.V110.SEMQMSAM data set and include it in the VTAM definitions.<br />

Because your OS/2 system is connecting to the MVS system or because you<br />

want to manage RDBMSs that are located in that platform, you also need to<br />

define the OS/2 workstation to VTAM. Please refer to Chapter 3, “DRDA<br />

Connectivity” on page 31 for details on how to define your OS/2 workstation to<br />

VTAM.<br />

Please refer to 5.1, “Key Connectivity Parameters” on page 152 for the symbolic<br />

destination name definition that has to be made to enable DataHub/2 to connect<br />

to VTAM (SSCP) and the DataHub <strong>Support</strong>/MVS that will be accessed in the MVS<br />

environment.<br />

5.5 Configuring VM for DataHub <strong>Support</strong>/VM<br />

This section presents information that will help you understand how DataHub<br />

<strong>Support</strong>/VM works. First we briefly introduce the main components of DataHub<br />

<strong>Support</strong>/VM and explain the main DataHub <strong>Support</strong>/VM control files you have to<br />

set up to configure DataHub <strong>Support</strong>/VM. Then we describe how to start and<br />

operate DataHub <strong>Support</strong>/VM. Finally we discuss a performance consideration.<br />

5.5.1 VM/ESA Service Pool <strong>Support</strong> Facility<br />

The DataHub <strong>Support</strong>/VM platform uses the Service Pool <strong>Support</strong> Facility of<br />

VM/ESA. It is an efficient way of serving an environment in which host<br />

transactions are short. Figure 131 on page 176 shows a simple Service Pool<br />

environment with the resulting path from an APPC connection.<br />

Chapter 5. DataHub Tools Conversation Connectivity 175

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