Veritas 4.1 Installation Guide (HP-UX 11i v3, February 2007)

1 Product Overview
HP-UX 11i Version 3 is the new enterprise operating system from Hewlett-Packard. The Veritas
File System (VxFS) 4.1 and Veritas Volume Manager (VxVM) 4.1 from Symantec Corporation
constitute a suite of products referred to as the Veritas 4.1 in this document. Veritas Volume
Manager (VxVM) 4.1 is a storage management subsystem that allows you to manage physical
disks as logical devices called volumes. A volume is a logical device that appears to a data
management system as a physical disk. Veritas File System is an extent based, intent logging file
system that is designed for use in UNIX environments that require high performance and
availability and deal with large volumes of data.
Volume Managers Supported on HP-UX 11i Version 3
HP-UX 11i version 3 supports the following volume managers:
HP Logical Volume Manager (HP LVM)
HP LVM is a disk management subsystem that allows you to allocate disk space according
to the specific or projected size of your file system or raw data. See HP-UX System
Administrator's Guide Logical Volume Management available at http://docs.hp.com for more
information on HP LVM.
Veritas Volume Manager (VxVM)
VxVM is a storage management subsystem that allows you to manage physical disks as
logical devices called volumes. A volume is a virtual device that appears to a data
management system as a physical disk.
Veritas Volume Manager (VxVM) 4.1
Introduction
VxVM is a storage management subsystem that removes the physical limitations of disk storage
so that you can configure, share, manage, and optimize storage I/O performance online without
interrupting data availability. VxVM also provides easy-to-use, online storage management tools
to reduce planned and unplanned system downtime, online disk storage management for
computing environments and Storage Area Network (SAN) environments. Through RAID
support, VxVM protects against disk and hardware failure. Additionally, VxVM provides features
that enable 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 also dynamically
configures disk storage while the system is active.
VxVM Features
Veritas Volume Manager has the following features:
Veritas Enterprise Administrator (VEA)
A Java-based graphical user interface for administering VxVM.
Concatenation
Concatenation maps data in a linear manner onto one or more subdisks in a plex.
Striping
Striping maps data, so that data is interleaved among two or more physical disks.
Mirroring
Mirroring uses multiple mirrors to duplicate information contained in a volume.
Volume Managers Supported on HP-UX 11i Version 3 13