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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Database Manager

Software component in the Cluster service that controls access to the cluster database.

data value

A single value associated with a property value. A cluster object property consists of one or more property values, each consisting of one or more data values. For example, if a property consists of multiple DWORD arrays, each array is considered a property value, and each array element is considered a data value.

dependency

A resource on which another resource depends. If resource A depends on resource B, then B is a dependency of A.

dependency relationship

Relationship between two resources where one resource depends on another resource to operate. Resources in a dependency relationship must be in the same group. Dependent resources are taken offline before, and brought online after, their dependencies.

dependent

A resource that depends on one or more resources in order to operate. If resource A depends on resource B, then resource A is dependent.

disk mirroring

Fault tolerant technique that writes data simultaneously to two disks using the same disk controller. The disks operate in tandem, constantly storing and updating the same files. Mirroring alone does not ensure data protection. If both disks fail at the same time, you still lose data.

disk striping

Spreading data over multiple disk drives. Data is interleaved by byte or sector blocks across the drives.

Domain Name System (DNS)

Service that maps node names to IP addresses.

DWORD-aligned

The alignment or spacing of data in a buffer. Data is DWORD-aligned if the byte size of each data value is an even multiple of a DWORD (4 bytes).

 

 

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