7.4

Table Of Contents
Problem
Upgrading IaaS with load balancing enabled can cause an intermittent failure. When this happens, you
must run the vRealize Automation upgrade again with load balancing disabled.
Solution
1 Revert your environment to the pre-update snapshots.
2 Open a remote desktop connection to the primary IaaS web server node.
3 Navigate to the Windows hosts file at c:\windows\system32\drivers\etc.
4 Open the hosts file and add this line to bypass the web server load balancer.
IP_address_of_primary_iaas_website_node vrealizeautomation_iaas_website_lb_fqdn
Example:
10.10.10.5 vra-iaas-web-lb.domain.com
5 Save the hosts file and retry the vRealize Automation update.
6 When the vRealize Automation update competes, open the hosts file and remove the line you added
in step 4.
Work Around Upgrade Problems
You can use these flags to modify the upgrade process to work around upgrade problems.
Solution
These flags provide ways to modify the upgrade process if you experience problems upgrading your
environment.
Flag Description
/tmp/disable-iaas-upgrade Prevents IaaS upgrade process after the virtual appliance
restarts.
/tmp/do-not-upgrade-ma Prevents the Management Agent upgrade. This flag is suitable
when the Management Agent is upgraded manually.
/tmp/skip-prereq-checks Prevents the automatic prerequisite checks and fixes. This flag
is suitable when there is a problem with the automatic
prerequisite fixes and the fixes have been applied manually
instead.
/tmp/do-not-stop-services Prevents stopping IaaS services. The upgrade does not stop the
IaaS Windows services, such as the Manager Service, DEMs,
and agents.
/tmp/do-not-upgrade-servers Prevents the automatic upgrade of all server IaaS components,
such as the database, web site, WAPI, repository, Model
Manager data, and Manager Service.
Note This flag also prevents enabling the Manager Service
automatic failover mode.
Upgrading from vRealize Automation 6.2.5 to 7.4
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