XVM Volume Manager Administrator's Guide

Table of Contents

What's New in This Guide

Major Documentation Changes

About This Guide

Related Documentation

Conventions Used in This Guide

Reader Comments

1. Introduction to the XVM Volume Manager

XVM Volume Manager Features

XVM Logical Volume Device Directories

Partition Layout under XVM

Composition of XVM Logical Volumes

Writing Data to Logical Volumes

XVM Logical Volumes in a CXFS Cluster

XVM Logical Volumes and Failover

Installing the XVM Logical Volume Manager under IRIX

Installing the XVM Volume Manager under Linux

2. XVM Administration Concepts

XVM Objects

XVM Domains

Physical Disk Administration

Creating Logical Resources

Managing Logical Resources

Destroying Logical Resources

3. The XVM Command Line Interface

Using the XVM CLI

Online Help for XVM CLI Commands

XVM CLI Syntax

Object Names in XVM

XVM Device Directories and Pathnames

Command Output and Redirection

Safe Versus Unsafe Commands

4. XVM Administration Commands

Physical Volume Commands

Logical Volume Commands

XVM System Disks

5. XVM Failover

Selecting a Failover Version

Failover V1

Failover V2

How to Create a failover2.conf File

6. The XVM Snapshot Feature

XVM Snapshot Overview

XVM Snapshot Administration

Basic Snapshot Example

Creating Hourly Snapshots

Growing a Repository Volume

Determining System Behavior on Full Repository

Snapshot Region Size and System Performance

Snapshot Backup Considerations

7. XVM Administration Procedures

Before you Begin

Preparing to Configure XVM Volumes under Linux

Creating a Logical Volume with a Three-Way Stripe

Striping a Portion of a Disk

Creating a Logical Volume with a Data and Log Subvolume

Creating a Logical Volume with a Data, Log, and Real-time Subvolume

Creating a Volume from the Top Down

Creating an XVM Logical Volume with Striped Mirrors

Creating and Mirroring an XVM System Disk

Configuring a swap Volume with a Concat

Giving Away a System Disk from the Miniroot

Online Reconfiguration Using Mirroring

Online Modification of a Logical Volume

Making an XVM Volume Using a GPT Label

Converting an SGI DVH XVM Label to a GPT Label Suitable for XVM

Tuning XVM

8. Statistics

Physical Volume Statistics

Subvolume Statistics

Stripe Statistics

Concat Statistics

Mirror Statistic

Slice Statistics

9. XVM Volume Manager Operation

Cluster System Startup

Mirror Revives

Mirror Revives on Recovery in a Cluster

XVM Mirror Revive Resources

XVM Subsystem Parameters

10. The XVM Manager GUI

Installing the XVM Manager GUI

Starting the XVM Manager GUI

The XVM Manager GUI Window

Configuring the System

Selecting Items to View or Modify

Configuring the System Quickly

Analyzing I/O Performance

Using Drag-and-Drop for XVM Configuration

Viewing Log Messages

Important GUI and CLI Differences

Disks Tasks

Volume Element Tasks

Filesystem Tasks

Privileges Tasks

A. XVM and XLV Logical Volumes

XVM and XLV Logical Volume Creation Comparison

Upgrading from XLV to XVM Logical Volumes

Converting XLV Mirrored Stripes to XVM Striped Mirrors

Index