Mirrored Disk/iX User's Guide: HP 3000 MPE/iX Computer Systems

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HP Part Number: 30349-90005

Edition: Edition 2

Published: Printed in U.S.A. 1992

Table of Contents

1 Introducing Mirrored Disks with Split-Volume Backup

What are mirrored disks?

What is split-volume backup?

Product features

Product specifications

Product environment
User capabilities

Installation overview

Operation overview

2 Installing Mirrored Disks

Mirrored disk installation

System configuration
Disk installation
System boot
Mirrored disk software

Setting up the mirrored volume set

Initializing a mirrored volume set
Adding volumes to a mirrored set
Setting up accounts and groups
Moving files

Using mirrored disks

3 Performing Split-Volume Backup

Split-Volume backup requirements

Backing up a mirrored set

Splitting a mirrored set
Backing up disk files to tape
Joining the volume set

Restoring files from a backup tape

4 Troubleshooting

Disk repair

Disk failures

Disk mounting failure
Disk failure after mounting

Troubleshooting

If a device adapter card's drive fails
If a drive is DISABLED
If DISCUTIL is needed
If the system aborts
If JOINMIRRSET is aborted
If a drive fails when volume set is split
If the system aborts while volume set is being split
If the volumes are unavailable during JOINMIRRSET

Nonrecoverable conditions

If both mirrored drives fail
If both split volume set halves fail
If a drive fails during the repair operation
If a drive fails during the join operation
If you misuse the SUSPENDMIRRVOL command
If you create a software error
If you modify a disk

5 Mirrored Disk Commands

VOLUTIL command summary

JOINMIRRSET

Task
Syntax
Parameters
Example

Task
Syntax
Parameters
Example

Task
Syntax
Parameters
Example

REPLACEMIRRVOL

Task
Syntax
Parameters
Example

Task
Syntax
Parameter
Example

SUSPENDMIRRVOL

Task
Syntax
Parameters
Example

System command summary

Syntax
Parameter
Example

Task
Syntax
Parameters
Other Options
STORE Tape Compatibility
SPLITVS Example
ONVS Example
STORE Example

Task
Syntax
Parameters
Example

Task
Syntax
Example

A Quick Start Procedures

Create a mirrored volume set
Add members to a mirrored volume set
Back up files
Suspend mirroring on a PENDING volume
Replace a disk that did not mount
Replace a disk that failed after mounting

List of Figures

1-1 Mirrored Disks
1-2 Split-Volume Backup
2-1 Sample Mirrored Disk Configuration
2-2 Sample Cabinet Installation

List of Tables

4-1 JOINMIRRSET Options
5-1 VOLUTIL Commands
5-2 SHOWSET Mirrored Disk States
5-3 System Commands
5-4 DSTAT Disk States


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