Interfaces / Buses / I/Os White Papers

Smart Array Controller Technology: Drive Array Expansion and Extension

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• interfaces / buses / i/os

Overview This paper describes four specific functions of the Smart Array Controller family: capacity expansion, volume extension, RAID level migration, and stripe size migration. Capacity Expansion adds physical drives to an array. This is usually done in anticipation of additional changes to the storage configuration, such as volume extension. Volume extension takes this newly available space in the array and allows the OS to use it by increasing the size of an existing volume. If administrators plan to perform volume extension on a Windows 2000 server, they must be aware of specific requirements that must be met to perform the volume extension. Administrators can also optimize their storage by using the Array Configuration Utility to change either stripe sizes or RAID levels within an array.

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