Managing Serviceguard Fifteenth Edition, reprinted May 2008

Software Upgrades
Guidelines for Migrating a Cluster with Cold Install
Appendix E496
Guidelines for Migrating a Cluster with Cold
Install
There may be circumstances when you prefer to do a cold install of the
HP-UX operating system rather than an upgrade. A cold install erases
the existing operating system and data and then installs the new
operating system and software; you must then restore the data.
CAUTION The cold install process erases the existing software, operating system,
and data. If you want to retain any existing software, make sure you
back up that software before migrating.
Checklist for Migration
Use the following as a checklist to prepare the migration.
CAUTION This is a checklist, not a precise set of steps.
1. Back up the data, including databases, user and application data,
volume group configurations, etc.
NOTE Data on shared disks, or on local disks in volumes that are not are
touched by the HP-UX installation process, will not normally be
erased by the cold install; you can re-import this data after the cold
install. If you intend to do this, you must do the following before you
do the cold install:
• For LVM: create a map file for each LVM volume group and save
it as part of your backup.
• For VxVM: deport disk groups (halting the package should do
this).