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

The VERITAS File System
Quality of Storage Service
Chapter 1 23
Quality of Storage Service
The Quality of Storage Service (QoSS) option is built on the multi-volume support technology introduced in
this release. Using QoSS, you can map more than one volume to a single file system. You can then configure
policies that automatically relocate files from one volume to another, or relocate files by running file
relocation commands. Having multiple volumes lets you determine where files are located, which can
improve performance for applications that access specific types of files. QoSS functionality is a separately
licensable feature that is available with the VRTSfppm package. See Chapter 9, “Multi-Volume File
Systems,” on page 123" for more information.