Clustering Definitions

  • C

    cluster log (CL)

    A cluster log (CL) is a record of cluster service activity in a server member cluster.

  • cluster name object (CNO)

    A cluster name object (CNO) is an Active Directory computer object linked with the network resource Cluster Name.

  • D

    Dynamic Quorum

    Dynamic Quorum is the ability of a cluster to recalculate a quorum as it maintains a working cluster.

  • F

    failover cluster

    A failover cluster is a group of servers that work together to maintain high availability of applications and services.

  • G

    Global Update Manager (GUM)

    Global Update Manager is a cluster component in the Windows Cluster Architecture.

  • M

    Microsoft Cluster Server (MSCS) Generic Application

    Generic Application is a Microsoft Cluster Server (MSCS) resource type responsible for managing cluster-unaware applications.

  • Microsoft Cluster Server (MSCS) Generic Script

    Generic Script is a Microsoft Cluster Server (MSCS) resource type in a server cluster or failover cluster that supports an application controlled by a script that runs in Windows Script Host (WSH).

  • Microsoft Cluster Service (MSCS)

    Microsoft Cluster Service (MSCS) is a service that provides high availability (HA) for applications such as databases, messaging and file and print services.

  • Microsoft Failover Cluster Manager (MSFCM)

    Microsoft Failover Cluster Manager (MSFCM) is a specific management function within the Windows Server operating system which is used to create, validate, and manage failover server clusters running Windows Server.

  • Microsoft Storage QoS (Storage Quality of Service)

    Microsoft Storage QoS (Storage Quality of Service) is a feature for monitoring and managing the performance of storage resources allocated to individual virtual machines (VMs) running on Hyper-V and scale-out file servers or cluster shared volumes.

  • W

    Windows Server Failover Clustering (WSFC)

    Windows Server Failover Clustering (WSFC) is a feature of the Windows Server platform for improving the high availability (HA) of applications and services. WSFC, which is the successor to Microsoft Cluster Service (MSCS), can be administered through the Failover Cluster Manager snap-in.

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