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Table Of Contents
By default, 4 GB of memory is allocated to the Directories Management service. This is sufficient for many
small to medium sized deployments. If you have an Active Directory connection that uses a large number
of users or groups, you may need to increase this memory allocation. Increased memory allocation is
appropriate for systems with more than 100,000 users , each in 30 groups and 750 groups overall. For
these system, VMware recommends increasing the Directories Management memory allocation to 6 GB.
Directories Management memory is calculated based on the total memory allocated to the vRealize
Automation appliance The following table shows memory allocations for relevant components.
Table 25. vRealize Automation appliance Memory Allocation
Virtual Appliance Memory vRA service memory vIDM service memory
18 GB 3.3 GB 4 GB
24 GB 4.9 GB 6 GB
30 GB 7.4 GB 9.1 GB
Note These allocations assume that all default services are enabled and running on the virtual
appliance. They may change if some services are stopped.
Prerequisites
n
An appropriate Active Directory connection is configured and functioning on your
vRealize Automation deployment.
Procedure
1 Stop each machine on which a vRealize Automation appliance is running.
2 Increase the virtual appliance memory allocation on each machine.
If you are using the default memory allocation of 18 GB, VMware recommends increasing the
memory allocation to 24 GB.
3 Restart the vRealize Automation appliance machines.
Create a Domain Host Lookup File to Override DNS Service Location (SRV)
Lookup
When you enable Integrated Windows Authentication, the Directory configuration is changed to enable
the DNS Service Location field. The connector service location lookup is not site aware. If you want to
override the random DC selection, you can create a file called domain_krb.properties and add the
domain to host values that take precedence over SRV lookup.
Procedure
1 From the appliance-va command line, log in as the user with root privileges.
2 Change directories to /usr/local/horizon/conf and create a file called
domain_krb.properties.
Configuring vRealize Automation
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