Recently
I’ve been working with architecting a vRealize Automation solution, since it
was my first project after version 7.0 came out I decided to re-evaluate my
knowledge about architecture options with vRA Reference Architecture Guide.
There were
a lot of improvements and services consolidations within vRA appliance but none
on the IaaS services (the ones running on Windows boxes).
Another
great feature of vRA 7.0 is the Installation Wizard, simplifying and speeding
up the installation process.
But in order to reduce the complexity of the
installation some architecture choices, based on the best practices, have been
made. One thing I
realized on the installation wizard is that there’s a single column for DEM
nodes.
Also the
only parameter on Distributed Execution Managers page is the Instance Name.
How do I
set up which one will be DEM Orchestrator and which one will be DEM Worker from now on?
So, let’s
see how installation wizard handle DEMs placement.
1 – DEM
Orchestrator will ALWAYS be installed along Manager Service;
so if you want two DEM Orchestrator, during
the install pick up two Manager Services.
2 – The DEM
options you see on the Installation Wizard, including Instance Name as we saw above,
are related to DEM Worker role only.
Now the
question is, if, for some reason, I want to architect and place the roles
somewhere else how do I accomplish that?
And the
answer is easy: by the old fashion way !!!
Download IaaS installer from
https://”vRA_Appliance”:5480/installer and install it manually on each node
selecting the roles you want for them ; )
