You are an Enterprise administrator for contoso.com. The corporate network of the company consists of a single Active Directory domain. All the servers in the domain run Windows Server 2008 and use internal storage only and all client computers run Windows Vista.
The network contains a file server. You have been assigned the task to deploy a client/server application in minimum cost in such as way that it is available even if a single server fails.
Which of the following features would you deploy to accomplish the desired task?
A.
Terminal Services RemoteApp (TS RemoteApp)
B.
Failover cluster that uses Node and File Share Disk Majority
C.
Distributed File System (DFS) that uses replication
D.
Failover cluster that uses No Majority: Disk Only
E.
None of the above
Explanation:
To deploy a client/server application in minimum cost in such as way that it is available even if a single server fails, you need to deploy a failover cluster that uses Node and File Share Disk Majority.
The quorum configuration in a failover cluster determines the number of failures that the cluster can sustain. If an additional failure occurs, the cluster must stop running. The relevant failures in this context are failures of nodes or, in some cases, of a witness disk (which contains a copy of the cluster configuration) or witness file share. It is essential that the cluster stop running if too many failures occur or if there is a problem with communication between the cluster nodes.
Node and Disk Majority is (recommended for clusters with an even number of nodes) Can sustain failures of half the nodes (rounding up) if the witness disk remains online. For example, a six node cluster in which the witness disk is online could sustain three node failures.
Can sustain failures of half the nodes (rounding up) minus one if the witness disk goes offline or fails. For example, a six node cluster with a failed witness disk could sustain two (3-1=2) node failures.
Node and File Share Majority is (for clusters with special configurations) Works in a similar way to Node and Disk Majority, but instead of a witness disk, this cluster uses a witness file share.
Note that if you use Node and File Share Majority, at least one of the available cluster nodes must contain a current copy of the cluster configuration before you can start the cluster. Otherwise, you must force the starting of the cluster through a particular node.