S
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
- SCSI
- scalability
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A measure of how well a computer system can grow to meet increasing demands.
- server application
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The server side of the client-server model. The server waits for requests from its clients. When it receives a request, the server processes it and returns the requested information to the client.
- server cluster
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See failover cluster.
- Server Cluster API
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See Failover Cluster API.
- server cluster object
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See cluster object.
- service
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Data or operation made available to network clients through a failover cluster instance; not necessarily a service.
- shared disk
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A disk shared between multiple owners simultaneously. Failover cluster do not use shared disks. A cluster disk is owned by only one node at any point in time.
- shared nothing model
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Clustering architecture where systems share neither memory nor devices. Each processor has its own memory and a copy of the operating system. Connections between processors are optimized because messages are passed across a high-speed, dedicated bus. Server clusters implements this model.
- shared resource
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Cluster organization in which some resources are accessible to all systems in the cluster.
- single point of failure
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A single hardware or software component that prevents a cluster from functioning if the component fails. Administrators try to avoid single points of failure through redundancy and backup systems.
- Small Computer System Interface (SCSI)
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A protocol for connecting devices from several classes of peripherals to a host system without requiring modifications to hardware and software.
- storage class resource
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A data storage device that is accessible to all cluster nodes and that is able to operate as a cluster resource. An example of a storage class resource is the Physical Disk resource.
- storage pool
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A collection of storage class resources. For a storage pool to be clusterable, the pool must contain at least 3 physical disk resources. In addition, each physical disk resource in the storage pool cannot (1) have a storage capacity of 10 GB or less, (2) use thin provisioning, or (3) have a mix of storage spaces or other file systems (for example, NTFS).
- stripe set
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See disk striping.
- system
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See node.