VERITAS Volume Manager 3.1 Migration Guide

Command Differences

Comparison of LVM and VxVM Tasks

Chapter 368

Comparison of LVM and VxVM Tasks

This section contains a list of tasks which you can perform using LVM,

and near equivalent tasks which you can perform using the VERITAS

Volume Manager. You can perform the LVM tasks by using SAM or the

command line interface. Similarly, you can choose to perform VxVM

tasks by using the VERITAS Volume Manager Storage Administrator or

from the command line interface. This document focuses on the

command line interface.

NOTE The following features in VxVM require purchase of B9116AA, the HP

VERITAS Volume Manager product: Mirroring, Mirroring and Striping,

Dynamic Multipathing of Active/Active Devices, Hot-relocation, Online

Migration, and RAID-5.

All the VxVM tasks listed in the task comparison chart can be performed

by the VERITAS Volume Manager Storage Administrator. For more

information, refer to the VERITAS Volume Manager 3.1 Storage

Administrator Administrator’s Guide.

For more information on LVM commands, refer to Managing Systems

and Workgroups, and LVM manual pages in the Reference Volumes 2,

and

. For information on VxVM commands, refer to the VERITAS

Volume Manager documentation package (see the 'Preface' ).

NOTE VxVM is not rootable in HP-UX 11i, so you cannot perform these tasks

on the root disk or root volume on HP-UX 11i. VxVM is rootable in

HP-UX 11i Version 1.5, so you can perform these tasks any disk or

volume on that release.

NOTE Mirroring in LVM is supported only if you have MirrorDisk/UX already

installed as an add-on product. Similarly, mirroring in VxVM requires

purchase and installation of an additional license, B9116AA.

NOTE In the table below, many examples show example names which you must

replace with real names when you type the commands. Examples are: