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HP-UX 11i v3 Installation and Update Guide: HP Integrity Server Blades, HP Integrity Servers, and HP 9000 Servers > Chapter 7 Installing HP Applications and Patches

Reducing Downtime Using Dynamic Root Disk


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Dynamic Root Disk (DRD) is an HP-UX system administration toolset used to clone an HP-UX system image to an inactive disk for software maintenance and recovery. The bundle name is DynRootDisk. The product name is DRD. Administrators can use DRD to reduce downtime for system maintenance by creating an inactive clone of the booted system, then applying patches and products to the clone. The modified clone can then be booted at a convenient time.

The HP-UX Dynamic Root Disk web site at http://docs.hp.com/en/DRD provides a product overview, download links, documentation links, and installation instructions.

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