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HP Dynamic Root Disk (DRD) System image, therefore persisting across reboots, System recovery

Models: Dynamic Root Disk (DRD)

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System image	The file systems and their contents that comprise an installation of HP-UX — residing on disk and
	therefore persisting across reboots.
System recovery	See Hot recovery
Unrehost	DRD command that removes the system information file, EFI/HPUX/SYSINFO.TXT, from a disk
	that was rehosted, optionally preserving a copy in a file system on the booted system.
VxVM	Veritas Volume Manager

72 Glossary

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HP Dynamic Root Disk (DRD) System image, therefore persisting across reboots, System recovery, See Hot recovery, Unrehost

Contents

Dynamic Root Disk A.3.10.* Administrators Guide HP-UX 11i v2, HP-UX 11iCopyright 2012 Hewlett-Packard Development Company, L.P Table of Contents 4 Accessing the inactive system image5 Synchronizing the inactive clone image with the booted system 1 About Dynamic Root Disk8 Troubleshooting DRD A DRD commands7 Rehosting and unrehosting systems 9 Support and other resourcesList of Figures Disk Configurations After CloningDisk Configurations After Activating the Inactive System Image Preparing to Clone the Active System ImageList of Examples The ioscan -m dsf command output on an HP-UX 11i v3 Integrity system1.3 Commands overview 1 About Dynamic Root Disk1.1 Conceptual overview 1.2 Terminology1.4 Downloading and installing Dynamic Root Disk 8 About Dynamic Root Disk2 Cloning the active system image 2.1 The active system image2.2 Locating disks 2.2.1 Locating disks on HP-UX 11i v2 systems2.2.2 Locating disks on HP-UX 11i v3 Integrity systems # /usr/sbin/ioscan -m dsf # /usr/sbin/ioscan -fNnkC disk2.4 Using other utilities to determine disk availability 2.5 Using DRD for limited disk availability checks2.3 Choosing a target disk 2.6 Using drd clone to analyze disk size 2.7 Creating the cloneFigure 2-2 Cloning the Active System Image Example 2-7 The drd clone command output 2.8 Adding or removing a disk 3.1 DRD-Safe commands and Packages 3 Updating and maintaining software on the clone3.2 Updating and managing patches with drd runcmd 3.2.1 DRD-Safe patches and the drdunsafepatchlist file3.5 Restrictions on update-ux and sw* commands invoked by drd runcmd 3.2.2 Patches with special installation instructions3.3 Updating and managing products with drd runcmd 3.4 Special considerations for firmware patches3.6 Viewing logs 4 Accessing the inactive system image 4.1 Mounting the inactive system image4.2 Performing administrative tasks on the inactive system image Example 4-3 Checking a warning message 4.3 Unmounting the inactive system image Inactivates the inactive system images volume group For an LVM-based system, exports the volume groupUnmounts the file systems in the inactive system image 4.3 Unmounting the inactive system imagePage 5 Synchronizing the inactive clone image with the booted system 5.1 Overview5.2 Quick start-basic synchronization 5.3 The drd sync command 5.3.1 Determining the list of files in the booted volume group5.3.2 Trimming the list of files to be synchronized 2. Files that have changed on the clone 5.3.3 Copying the files to the inactive clone image 5.5 drd sync system shutdown script 5.5 drd sync system shutdown scriptPage 6 Activating the inactive system image 6.1 Preparing the inactive system image to activate laterFor additional information, see the setboot1M manpage 6.2 Undoing activation of the inactive system image 6.2 Undoing activation of the inactive system image36 Activating the inactive system image Example 6-3 Using drd deactivate after activating - agile DSF Page 7 Rehosting and unrehosting systems 7.1 Rehosting overview7.2 Rehosting examples 7.3 Rehosting a mirrored image 7.4 Unrehosting overview Page 8 Troubleshooting DRD Page Subscription service 9 Support and other resources9.1 Contacting HP Before you contact HPCommand 9.2 New and changed information in this edition9.3 Locating this guide 9.4 Related informationfind1 is the manpage sectionHP-UX manpage. In this example, “find” is the manpage name and “1” Page A DRD commands A.1 DRD command syntaxA.1.1 The drd activate command Optionsx alternatebootdisk=blockdevicespecialfile Extended optionsx extendedoption=value X optionfileA.1.2 The drd clone command x reboot=truefalsex verbosity=3 Default x copyautofile optiont targetdevicefile x extendedoption= valuex alternatebootdisk=blockdevicespecialfile Optionsx enforcedsa=truefalse x HAalternatebootdisk=blockdevicespecialfilex reboot=truefalse x verbosity=3 DefaultA.1.3 The drd deactivate command x alternatebootdisk=blockdevicespecialfileOptions Extended optionsA.1.4 The drd mount command x reboot=truefalsex verbosity=3 Default x logfile=/var/opt/drd/drd.logdrd mount -? -p -q -v-x extended option=value -x -?-X optionfile x alternatebootdisk=blockdevicespecialfileOptions Extended optionsA.1.5 The drd rehost command x mirrordisk=blockdevicespecialfiledrd rehost -? -p -f systeminformationfile -q -t devicespecialfile -v -x extended option=value -x -? -X optionfilef systeminformationfile t devicespecialfilex alternatebootdisk=blockdevicespecialfile Extended optionsx extendedoption=value X optionfileA.1.6 The drd runcmd command 60 DRD commandsOptions x extendedoption=valuex alternatebootdisk=blockdevicespecialfile Extended optionsx mirrordisk=blockdevicespecialfile A.1.7 The drd status command drd status -? -q -v -x extended option=value -x -? -X optionfileOptions Extended optionsx alternatebootdisk=blockdevicespecialfile x HAalternatebootdisk=blockdevicespecialfilex reboot=truefalse x verbosity=3 DefaultA.1.8 The drd sync command drd sync -? -p -q -v -x extended option=value -x -? -X optionfileA.1.9 The drd umount command OptionsExtended options x extendedoption=valuedrd umount -? -p -q -v -x extended option=value -x -? -X optionfile x alternatebootdisk=blockdevicespecialfileOptions Extended optionsA.1.10 The drd unrehost command x mirrordisk=blockdevicespecialfilex alternatebootdisk=blockdevicespecialfile OptionsExtended options f systeminformationfilex reboot=truefalse x verbosity=3 Defaultx logfile=/var/opt/drd/drd.log x logverbosity=4Page Glossary therefore persisting across reboots System recoverySee Hot recovery Veritas Volume ManagerIndex