| 摘要 |
An automated backup and reversion system comprising at least two storage systems with one source storage system being physically connected to at least one host system during normal processing at any given time. During the backup process, involved storage devices are physically disconnected from the host system. The at least one destination storage system receiving the information backup may thereafter be connected to the host system to allow for subsequent host processing. The initial source storage system may then remain disconnected from the host system and assume the role of a destination storage system. Each storage system is located at the same logical location while being processed so that the host system is unaware that any storage system change has occurred. A plurality of storage systems may be configured with only one being processed at any given time, and the remainder may comprise successive backups after any negative event.
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