Specifications

Reconciling Roles When Connecting vCenter Server to a Linked Mode
Group
When you join a vCenter Server system to a linked mode group, the roles defined on each vCenter Server
system in the group are replicated to the other systems in the group.
If the roles defined on each vCenter Server system are different, the roles lists of the systems are combined into
a single common list. For example, if vCenter Server 1 has a role named Role A and vCenter Server 2 has a role
named Role B, then both servers will have both Role A and Role B after they are joined in a linked mode group.
If two vCenter Server systems have roles with the same name, the roles are combined into a single role if they
contain the same privileges on each vCenter Server system. If two vCenter Server systems have roles with the
same name that contain different privileges, this conflict must be resolved by renaming at least one of the roles.
You can choose to resolve the conflicting roles either automatically or manually.
If you choose to reconcile the roles automatically, the role on the joining system is renamed to
vcenter_namerole_name where vcenter_name is the name of the vCenter Server system that is joining the Linked
Mode group and role_name is the name of the original role.
If you choose to reconcile the roles manually, connect to one of the vCenter Server systems with the vSphere
Client and rename one instance of the role before proceeding to join the vCenter Server system to the Linked
Mode group.
If you remove a vCenter Server system from a linked mode group, the vCenter Server system retains all the
roles it had as part of the group.
Isolate a vCenter Server Instance from a Linked Mode Group
You can isolate a vCenter Server instance from a Linked Mode group.
Procedure
1 Select Start > All Programs > VMware > vCenter Server Linked Mode Configuration.
2 Click Modify linked mode configuration and click Next.
3 Click Isolate this vCenter Server instance from linked mode group and click Next.
4 Click Continue and click Finish.
vCenter Server restarts. Depending on the size of your inventory, the change to Linked Mode configuration
might take from a few seconds to a few minutes to complete.
The vCenter Server instance is no longer part of the Linked Mode group.
Change the Domain of a vCenter Server System in a Linked Mode Group
To change the domain of a vCenter Server system in a Linked Mode group, isolate the vCenter Server system
from the Linked Mode group first.
vCenter Server systems in a Linked Mode group can be in different domains if the domains have a trust
relationship.
Procedure
1 Isolate the vCenter Server system from the Linked Mode group.
2 Change the domain of the vCenter Server system.
Refer to the documentation for the operating system on which vCenter Server is installed for more
information on changing the domain.
vCenter Server and Host Management
54 VMware, Inc.