About VxFS multi-volume file systems

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About VxFS multi-volume file systems

Multi-volume file systems are file systems that occupy two or more virtual volumes. The collection of volumes is known as a volume set, and is made up of disks or disk array LUNs belonging to a single Veritas Volume Manager (VxVM) disk group. A multi-volume file system presents a single name space, making the existence of multiple volumes transparent to users and applications. Each volume retains a separate identity for administrative purposes, making it possible to control the locations to which individual files are directed.

See About multi-volume support.

This feature is available only on file systems meeting the following requirements:

  • The minimum disk group version is 140.

  • The minimum file system layout version is 7 for file level SmartTier.

  • The minimum file system layout version is 8 for sub-file level SmartTier.

To convert your existing VxFS system to a VxFS multi-volume file system, you must convert a single volume to a volume set.

See Converting a single volume file system to a multi-volume file system.

The VxFS volume administration utility (fsvoladm utility) can be used to administer VxFS volumes. The fsvoladm utility performs administrative tasks, such as adding, removing, resizing, encapsulating volumes, and setting, clearing, or querying flags on volumes in a specified Veritas File System.

See the fsvoladm (1M) manual page for additional information about using this utility.

See SmartTier building blocks

Terms of use for this information are found in Legal Notices.



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