VERITAS File System 4.1 Administrator's Guide

Multi-Volume File Systems
Features Implemented Using MVS
Chapter 9140
Features Implemented Using MVS
You can implement the following features using multi-volume support:
• Controlling where files are stored can be selected at multiple levels so that specific files or
file hierarchies can be assigned to different volumes. This functionality is available in the
VERITAS File System Quality of Storage Service (QoSS) feature (see Chapter 10,
“Quality of Storage Service,” on page 151).
• Placing the VxFS intent log on its own volume to minimize disk head movement and
thereby increase performance. This functionality can be used to migrate from the
VERITAS QuickLogT feature.
• Separating Storage Checkpoints so that data allocated to a Storage Checkpoint is isolated
from the rest of the file system.
• Separating metadata from file data.
• Encapsulating volumes so that a volume appears in the file system as a file. This is
particularly useful for databases that are running on raw volumes.
To use the multi-volume file system features, you must install VERITAS Volume Manager
and enable the Volume Set feature.