HP Dynamic Root Disk (DRD) manual Troubleshooting DRD

Page 43

8 Troubleshooting DRD

This chapter provides information about unexpected DRD situations and outcomes.

For the most recent troubleshooting information, check the DRD Frequently Asked Questions document at http://www.hp.com/go/drd-docs.

8.8.1.1Q: Why can't I see the inactive system image file systems when I run the bdf command?

A:You have to mount the inactive system image before you can see the file systems using bdf. Use the drd mount command to mount the inactive system image.

8.8.1.2Q: I can't remember which disk was used as the target of my clone operation. How can I identify it?

A:Use the drd status command.

8.8.1.3Q: I issued a drd activate command but changed my mind and do not want to boot the clone. How can I undo the drd activate command?

A:If you run drd activate and then decide not to boot the inactive image on the next reboot, use the drd deactivate command to set the primary boot disk to the currently booted disk. For further information on the drd deactivate command, see The drd deactivate command and the drd-deactivate(1M) manpage.

8.8.1.4Q: Can I change file system sizes when I create a clone?

A:This release of DRD does not provide a mechanism for resizing file systems during a drd clone operation. However, after the clone is created, you can manually change file system sizes on the inactive system without needing an immediate reboot. For information on resizing file systems, see the Dynamic Root Disk: Quick Start & Best Practices white paper, available at http://www.hp.com/go/drd-docs.

8.8.1.5Q: What versions of LVM are supported by DRD?

A:DRD supports the following LVM root volume group versions:

•DRD A.3.5.* and earlier:

—HP-UX 11i v2: LVM 1.0

—HP-UX 11i v3: LVM 1.0

•DRD A.3.6.* and later:

—HP-UX 11i v2: LVM 1.0

—HP-UX 11i v3: LVM 1.0 and LVM 2.2

43

Image 43

Contents Dynamic Root Disk A.3.10.* Administrators Guide Document Part Number DRD Version Supported Operating Systems Table of Contents Glossary Index Troubleshooting DRD Support and other resourcesDRD commands Rehosting and unrehosting systemsList of Figures List of Examples Terminology Commands overviewAbout Dynamic Root Disk Conceptual overviewDownloading and installing Dynamic Root Disk Locating disks on HP-UX 11i v2 systems Cloning the active system imageActive system image Locating disks# /usr/sbin/ioscan -fnkC disk Locating disks on HP-UX 11i v3 Integrity systems# /usr/sbin/ioscan -m dsf Using DRD for limited disk availability checks Using other utilities to determine disk availabilityChoosing a target disk Creating the clone Using drd clone to analyze disk sizeCloning the active system image Success Error Example 2-7 The drd clone command outputAdding or removing a disk Example 2-8 The drd clone command output for SAN diskSwinstall Swremove Swlist Swmodify Swverify Swjob DRD-Safe commands and PackagesUpdating and maintaining software on the clone Updating and managing patches with drd runcmd Kctune Update-ux View Kcmodule Kconfig Mkkernel Swm jobDRD-Safe patches and the drdunsafepatchlist file Updating and managing products with drd runcmd Patches with special installation instructionsSpecial considerations for firmware patches Viewing logs Mounting the inactive system image Accessing the inactive system imagePerforming administrative tasks on the inactive system image Enter the patches into a file such as Unmounting the inactive system image Compare vxconfigbackup with the clone copyUnmounting the inactive system image Page Quick start-basic synchronization OverviewDetermining the list of files in the booted volume group Drd sync commandTrimming the list of files to be synchronized Files that have changed on the clone Copying the files to the inactive clone image Drd sync system shutdown script Page Preparing the inactive system image to activate later Activating the inactive system image# /opt/drd/bin/drd activate Undoing activation of the inactive system image # /usr/bin/more /stand/bootconf l /dev/dsk/c2t0d0s2Activating the inactive system image Undoing activation of the inactive system image Page Rehosting overview Rehosting and unrehosting systemsRehosting examples Example 7-1 Provisioning a new system Rehosting a mirrored image# rm /var/opt/drd/registry/registry.xml Unrehosting overviewPage Troubleshooting DRD Page Contacting HP Support and other resourcesLocating this guide New and changed information in this editionRelated information Typographic conventions Find1 Page DRD command syntax DRD commandsDrd activate command Logverbosity=4 HAalternatebootdisk=blockdevicespecialfileIgnoreunmountedfs=truefalse Logfile=/var/opt/drd/drd.logCopyautofile option Drd clone commandReboot=truefalse Verbosity=3 DefaultCopyautofile=truefalseblockdevicespecialfile TtargetdevicefileEnforcedsa=truefalse Drd deactivate command Drd mount command Example A-1 File system mount points Drd rehost command Devicespecialfile -v-xextended option=value -x-?-Xoptionfile Extended options Drd runcmd command Extended options Drd status command Alternatebootdisk=blockdevicespecialfile Usr/sbin/swlist -l file, or Drd sync commandExcludelist= Drd umount commandAlternatebootdisk=blockdevicespecialfile Drd unrehost command Fsysteminformationfile Mirrordisk=blockdevicespecialfile Page Glossary Booted systemSystem image Index Idisk partition, 10, 11 inactive system file system