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What is the difference between DRD Hot Recovery and Mirror Disk/UX?

April 26, 2017disk DRD hot mirror recovery UX

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What is the difference between DRD Hot Recovery and Mirror Disk/UX?

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Mirror Disk/UX keeps an “always up to date” image of the booted system. Conversely, DRD provides a “point in time” image. The booted system and the clone may then diverge due to changes to either one. Keeping the clone unchanged is the Hot Recovery scenario. Note that DRD is not available for HP-UX 11.11, which limits your options on those systems.