Veritas File System 4.1 Administrator's Guide (HP-UX 11i v3, February 2007)

Chapter 9 123
9 Multi-Volume File Systems
VxFS provides support for multi-volume file systems when used in conjunction with the VERITAS Volume
Manager.Using the multi-volume support (MVS) feature, you can create a single file system over multiple
volumes and set the properties for each volume. For example, it is possible to place metadata on mirrored
storage while placing file data on better performing volume types such as RAID5.
The MVS feature also allows you to create file systems on different classes of devices, so that VxFS can
support a file system from both inexpensive disks and expensive arrays.Using the MVS administrative
interface, you can control the data to be stored on the different volume types available.
This chapter discusses the following topics:
• “Features Implemented Using MVS” on page 124
• “Volume Sets” on page 125
• “Creating MVS File Systems” on page 127
• “Allocation Policies” on page 129
• “Volume Encapsulation” on page 131
• “Converting from QuickLog to MVS” on page 133