Administrator's Guide

Table of Contents
1 About Dynamic Root Disk............................................................................7
1.1 Conceptual overview............................................................................................................7
1.2 Terminology.......................................................................................................................7
1.3 Commands overview...........................................................................................................7
1.4 Downloading and installing Dynamic Root Disk ......................................................................8
2 Cloning the active system image...................................................................9
2.1 The active system image.......................................................................................................9
2.2 Locating disks....................................................................................................................9
2.2.1 Locating disks on HP-UX 11i v2 systems...........................................................................9
2.2.2 Locating disks on HP-UX 11i v3 Integrity systems............................................................10
2.3 Choosing a target disk......................................................................................................12
2.4 Using other utilities to determine disk availability..................................................................12
2.5 Using DRD for limited disk availability checks.......................................................................12
2.6 Using drd clone to analyze disk size...............................................................................13
2.7 Creating the clone............................................................................................................13
2.8 Adding or removing a disk................................................................................................16
3 Updating and maintaining software on the clone..........................................17
3.1 DRD-Safe commands and Packages.....................................................................................17
3.2 Updating and managing patches with drd runcmd............................................................18
3.2.1 DRD-Safe patches and the drd_unsafe_patch_list file............................................18
3.2.2 Patches with special installation instructions...................................................................19
3.3 Updating and managing products with drd runcmd ..........................................................19
3.4 Special considerations for firmware patches.........................................................................19
3.5 Restrictions on update-ux and sw* commands invoked by drd runcmd..............................19
3.6 Viewing logs....................................................................................................................20
4 Accessing the inactive system image...........................................................21
4.1 Mounting the inactive system image.....................................................................................21
4.2 Performing administrative tasks on the inactive system image..................................................22
4.3 Unmounting the inactive system image.................................................................................24
5 Synchronizing the inactive clone image with the booted system......................27
5.1 Overview.........................................................................................................................27
5.2 Quick start—basic synchronization......................................................................................27
5.3 The drd sync command......................................................................................................28
5.3.1 Determining the list of files in the booted volume group...................................................28
5.3.2 Trimming the list of files to be synchronized...................................................................28
5.3.3 Copying the files to the inactive clone image................................................................30
5.4 Using the drd sync preview to determine divergence of the clone from the booted system........30
5.5 drd sync system shutdown script......................................................................................31
6 Activating the inactive system image...........................................................33
6.1 Preparing the inactive system image to activate later..............................................................33
6.2 Undoing activation of the inactive system image...................................................................35
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