HP Serviceguard Extended Distance Cluster for Linux Deployment Guide, First Edition, December 2006

Contents
4
Creating a Multiple Disk Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
To Create and Assemble an MD Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Creating Volume Groups and Configuring VG Exclusive Activation on the MD Mirror.
73
Configuring the Package Control Script and RAID Configuration File . . . . . . . . . . . . 75
Creating and Editing the Package Control Scripts. . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Editing the raid.conf File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
4. Disaster Scenarios and Their Handling
A. Managing an MD Device
Viewing the Status of the MD Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Stopping the MD Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Starting the MD Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Removing and Adding an MD Mirror Component Disk . . . . . . . . . . . . . . . . . . . . . . . . 99
Adding a Mirror Component Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100