shared disk array

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shared disk array

A disk subsystem that is connected to two or more computers typically via the SCSI interface. When disk subsystems are connected via Fibre Channel switches, they are called "storage area networks." See SAN and shared DASD.
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Another and more promising alternative for secure application and administrative segregation within a shared array is functionality that actually mirrors that of a true hypervisor.
Web hosting sites save time and money by replacing many locally attached disk resources with CentraVision and a single, shared array that can be accessed by many servers at the same time.
These shared arrays clear the jungle of direct-attached devices, put all the storage resources in one big box and provide an advanced storage subsystem with features for on-the-fly volume allocation and point-in-time copies of production data.
Over half of the companies surveyed have a SAN with either dedicated or shared arrays for virtual hosts;
Some are simply shared arrays that have been recast as SANs to capitalize on the popularity of the SAN concept.