Module 11: Scalability Lesson: 1 vCenter Linked Mode Flashcards
(18 cards)
What is vCenter Linked Mode?
Enables VMware vSphere administrators to search across multiple VMware vCenter Server systems from a single Client session
How many vCenter Servers can be linked?
10
How many hosts does linked mode support?
3,000
How many virtual machines does linked mode support?
30,000 powered on and 50,000 registered
What does vCenter LinkedMode use to store and synchronize data across multiple vCenter Server instance?
Microsoft’s Active Directory Application Mode (ADAM)
How is ADAM installed for vCenter Server?
A part of the vCenter Server installation
What data is stored for each vCenter Server instance in Linked Mode?
Connection information (IP addresses and ports), certificates and thumbprints, licensing information and user roles
What enables the search across multiple vCenter Server instances?
The Apache Tomcat Web service running on vCenter Server
vCenter Linked Mode relies on what application?
A Java-based Web application called the query service
What operations take place when you search for an object?
Client logs in to a vCenter Server, Client obtains a ticket to connect to query service, query services connect to other servers, results filtered
What type of inventory items can be searched?
Virtual machines Folders Hosts Datastores Networks Any managed object types
How often does changes in Global data take to become visible on other machines?
Usually less than 15 seconds
What service statuses can be viewed for each member of the Link Mode group?
VirtualCenter Management Service
vCenter Management Webservices
Query Service
LDAP health monitors
What is the VMwareVCMSDS service?
A LDAP directory service that vCenter uses
What happens if vCenter servers have different role names and are join in a Link Mode group?
The roles are combined into a single list and replicated to other servers
What happens if vCenter servers have the same role name and same privileges?
The rolls are consolidated
What default name is given to a role with the same name but different privileges?
From where do you add an existing host or remove a host from Link Mode group?
Start > All Programs > VMware > vCenter Server Linked Mode Configuration
