Requirements
A soft requirement, from the clustered host's standpoint, is to distinguish the physical location of each disk either by controller number or enclosure name.
Several hard requirements exist for using this agent:
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A single VCS cluster with at least one node in each of two sites, where a physical distance of 80 kilometers or less separates the sites.
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Mirror all volumes that have application-required data across site boundaries, with at least one plex in each site.
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Disable Volume Manager's Relocation Daemon. Otherwise in case of a temporary site outage, all plexes locate to the same site.
