VeritasTM Volume Manager (VxVM) by Symantec is a storage management subsystem that allows you to manage physical disks as logical devices called volumes. A VxVM volume appears to applications and the operating system as a physical disk on which file systems, databases and other managed data objects can be configured.
VxVM provides easy-to-use online disk storage management for computing environments and Storage Area Network (SAN) environments. By supporting the Redundant Array of Independent Disks (RAID) model, VxVM can be configured to protect against disk and hardware failure, and to increase I/O throughput. Additionally, VxVM provides features that enhance 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. You can also use VxVM to dynamically configure 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:
Further information on administering Veritas Volume Manager may be found in the following documents:
Provides more information on using the Cross-platform Data Sharing (CDS) feature of Veritas Volume Manager, which allows you to move VxVM disks and objects between machines that are running under different operating systems.
Describes the command-line interface to the Veritas Intelligent Storage Provisioning (ISP) feature, which uses a rule-based engine to create VxVM objects and make optimal usage of the available storage.