***The High Availability Wizard offers the following services and applications to choose from: DFS Namespace Server, DHCP Server, Distributed Transaction Coordinator (DTC), File Server, Generic Application, Generic Script, Generic Service, iSCSI Target Server, Internet Storage Name Service (iSNS) Server, Message Queuing, Other Server, Virtual Machine (VM), WINS Server.
***SMB Multichannel uses multiple network interfaces to provide both high performance through bandwidth aggregation and network fault tolerance through the use of multiple network paths to data on an SMB share. SMB 1.0 and SMB 2.x clients will use a single SMB connection.
***SMB PowerShell management cmdlets were introduced in Windows Server 2012 and in Windows 8 with SMB 3.0.
***Unlike a General Use File Server cluster, the Scale-Out File Server cluster is an active-active failover cluster where all file shares are online on all nodes simultaneously. Although the Scale-Out File Server supports SMB, it does not support NFS, Data Deduplication, DFS Replication, or File Server Resource Manager.
***To support multiple nodes to access the same volume at the same time, the Scale-Out File Server uses a CSV. It also uses a CSV cache, which is a read cache that significantly improves performance in certain scenarios, such as Virtual Desktop Infrastructure.
***When you first create a cluster or add servers to a cluster, you must be logged on to the domain with an administrator’s account on all the cluster’s servers. If the account is not a domain administrator, the account must have the Create Computer Objects permission in the domain.
***Select the server to be preferred from the list of available servers, then use the Up and Down buttons to move that server to the top or bottom of the listing.
***If a cluster has multiple roles, you can categorize the priority for each role. Roles with higher priorities are started before roles with lower priorities. If you don’t want a role to start, you select No Auto Start.
***When configuring the Failback option, you can specify when failback will occur and whether or not to failback to the preferred owner after the preferred owner is brought back online.
***You will configure the maximum number of failures that can occur in the selected number of hours. If the cluster fails more times within the selected period of time, it can be configured to be left offline for manual intervention.
***When the service is determined to be unhealthy, the Event ID 1250 will be logged.
***The events (event ID 1250) will be logged in the System log.
***You would correctly use the PowerShell cmdlet Add-ClusterVMMonitoredItem -VirtualMachine “VM42” -Service DHCPClient to configure this monitoring configuration.
***When the service is determined to be unhealthy, the Event ID 1250 will be shown in the System Log. VM Monitoring will then restart the VM gracefully on the host that it’s currently running on. If the VM fails again, VM Monitoring will move the VM to another node and start the VM.
***The General Use File Server role provides a central location for users to share files or for server applications that open and close files frequently. It also supports SMB, Network File System (NFS), Data Deduplication, File Server Resource Manager, DFS Replication, and other File Services role services. The only significant difference between Windows Server 2008 R2 and Windows Server 2012 is that Windows Server 2012 supports SMB 3.0.
***The Enable continuous availability and Encrypt data access options are selected by default. The Enable continuous availability takes advantage of SMB v3 functionality (Transparent Failover), whereas the Encrypt data access enables encryption of the SMB connections.
***Hosts require an x64-based processor with hardware-assisted virtualization.
***SMB Direct (SMB over Remote Direct Memory Access [RDMA]) enables direct memory-to-memory data transfers between servers, with minimal CPU utilization and low latency, using standard RDMA-capable network adapters (iWARP, InfiniBand, and RoCE). It also minimizes the processor utilization when performing large file I/O operations.
***SMB Transparent Failover provides Continuously Available properties that allow SMB 3 clients to not lose an SMB session when failover occurs. Both the SMB client and SMB server must support SMB 3.0 to take advantage of the SMB Transparent Failover functionality.
***SMB Directory Leasing reduces the latency when accessing files over slow WAN links by caching directory and file meta-data for longer periods, which reduces the associated round-trips to fetch the meta-data from the server.
***SMB Scale Out allows users to scale shared bandwidth by adding cluster nodes.
***SMB Encryption performs encryption by selecting a check box. Both the SMB client and SMB server must support SMB 3.0 to take advantage of the SMB Encryption functionality.
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