VERITAS Volume Manager (VxVM) is a storage management subsystem that allows you to manage physical disks as logical devices called volumes. A volume is a logical device that appears to data management systems as a physical disk partition device.
VxVM provides easy-to-use online disk storage management for computing environments and Storage Area Network (SAN) environments. Through support of Redundant Array of Independent Disks (RAID), VxVM protects against disk and hardware failure. Additionally, VxVM provides features that enable fault tolerance and fast recovery from disk failure.
VxVM overcomes physical restrictions imposed by hardware disk devices by providing a logical volume management layer. This allows volumes to span multiple disks.
VxVM provides the tools to improve performance and ensure data availability and integrity. VxVM also dynamically configures disk storage while the system is active.
The following sections of this chapter explain fundamental concepts of VxVM:
In addition, the following sections introduce you to advanced features of VxVM:
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