Chapter 6 Rehosting and Unrehosting Systems

A new feature of Dynamic Root Disk (DRD) version B.1131.A.3.2 is rehosting. Rehosting enables you to boot a DRD clone on a system other than the one where it was created. This new functionality is supported on LVM-managed root volumes running on Itanium® systems with HP-UX 11i v3. This capability enables a number of new uses for DRD clones. There are three main uses of rehosting:

	IMPORTANT: For additional information on rehosting, including required software, see the Exploring DRD Rehosting white paper, located at http://docs.hp.com/en/oshpux11iv2.html#Dynamic%20Root%20Disk.

The initial release of drd rehost has been tested on Integrity Virtual Machines and on blades with Virtual Connect. In addition, preliminary testing indicates that simple (single root volume group) standalone LVM-managed Itanium-based systems running a September 2008 HP-UX 11i v3 Operating Environment (OE) can be rehosted to another system with the exact same hardware. The benefit of the September 2008 HP-UX 11i v3 Operating Environment is the availability of “Self healing of boot disk configuration”, which is provided by LVM and described in the September 2008 HP-UX 11i v3 Release Notes, located at http://docs.hp.com/en/oshpux11iv3.html#Release%20Notes.