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Windows Server 2012 - 70-412 HA
High Availability topics
21
Computer Networking
Professional
07/09/2013

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Cards

Term
The biggest advantage of Cluster Shared Volumes (CSVs) is?
Definition
They can be shared by multiple cluster nodes at the same time. This is usually not possible with shared storage-even volumes on the same LUN.
Term
What is the only disadvantage to a "Quick Migration"?
Definition
The VM must be taken offline. However, this is the fastest method of migrating to another host.
Term
How can Clustered Shared Volumes (CSVs) achieve simultaneous shared access?
Definition
By separating the data from different nodes into virtual hard disk (VHD) files. Each shared volume has multiple VHDs used as the storage for a particular HA application(Role)The CSVs are then mapped to a common namespace on all nodes. CSVs appear as subfolders in the "ClusterStorage" folder on the system drive. eg) C:\ClusterStorage\Volume3
CSVs are NTFS but appear as CSVFS or Cluster Shared Volume File System
Term
Scale-Out File servers (SoFS) are designed for what use?
Definition
Storage for applications like SQL database applications that store data on file shares and keep files open for extended periods. SoFS are not designed for everyday user storage.
Term
One major incompatibility will cause a live migration to fail. What is it and how should you successfully migrate the vm?
Definition
Source and destination processors are from different manufacturers. To migrate, export the source VM and import it on the destination host. Live and Quick migrations are not possible.
Term
Cluster Shared Volumes (CSVs) are used in what type of clusters?
Definition
Failover Clusters only
Term
Scale-Out File Servers use what type of storage?
Definition
Cluster Shared Volumes (CSVs) only
Term
This type of storage is a new type of storage used only in failover clusters...
Definition
Cluster Shared Volumes (CSV)
Term
Scale-Out File Servers are similar to SAN storage in what way?
Definition
Client requests are distributed among all cluster nodes creating a single logical storage unit composed of storage from multiple nodes.
Term
Server 2012 Cluster Shared Volumes (CSVs) can be used in what two applications?
Definition
Scale-out File Server
Live Migration (recommended but not required-when used, almost 0 downtime during a migration)
Term
Scale-Out File Servers (SoFS) are not compatible with what features normally available in Windows Server 2012?
Definition
BranchCache, Data Deduplication, DFS Namespace servers, DFS Replication or File Server Resource Manager (FSRM)
Term
Dynamic Quorum does what?
Definition
Adjusts the votes to reach quorum automatically based on the # of active nodes. Cluster can remain active with only 1 active node.
Term
Windows Server 2012 has 2 types of file server roles for high availability. What are they?
Definition
"File server for general use" and a "Scale-Out File Server" for application data alternative
Term
What does the "Preferred Owner" setting do?
Definition
Determines which node,if available, should handle the client requests for a role both before and after node failure.
Term
What does Node Drain do?
Definition
Combines "Pause" and "Move Roles" steps from previous versions into one step. Right-click the node in cluster manager, choose "Pause" then "Drain Roles"
Term
Cluster-aware Updating setup to "Self Update" is managed where?
Definition
Cluster Manager, R-Click Cluster name, Select "More Actions" then Cluster-Aware Updating. Under Cluster Actions select "Configure cluster self-updating options". You will have to install "Cluster-Aware Updating(CAU) clusterd role." during the process.
Term
Failover Cluster Storage Pools cannot be thin provisioned, boot disks, or use RAID or parity. Based on the minimum disk requirement, what is the smallest disk capacity possible?
Definition
12GB - a minimum of 3 physical disks with at least 4GB each is the minimum space allowed for a failover cluster storage pool.
Term
What do a role's "Startup Priority Settings" determine?
Definition
The order in which roles should be failed over and started after node failure. Choices are High, Medium-default, Low and No Auto Start which fails over after the other roles but does not start on the new node.
Term
Server 2012 enables live migration outside a clustered environment. What is required?
Definition
Source and destination Hyper-V hosts are in domains that trust each other. An authentication method is required on both host servers-CredSSP or Kerberos.
DISADVANTAGE: migration takes much longer due to the copy process.
Term
Windows Server 2008 R2 failover clusters supported up to 16 nodes. How many can Windows Server 2012 support?
Definition
up to 64 nodes
Term
By default, recovery properties for a monitored service on a Hyper-V VM automatically does what after it fails?
Definition
Restarts automatically after the first 2 failures. After the 3rd failure, the cluster service running on the Hyper-V host takes over recovery according to your monitoring configuration.
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