The 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.
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:
The following sections introduce you to advanced features
of VxVM:
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