| 摘要 |
As in a normal storage system, an application run on a host issues a data write command or a data read command. A monitor unit monitors the host and a command issued by the host to detect a re-startable point to issue the re-startable point notification to a source storage system. Using the re-startable point as a momentum, the source storage system converts a command stored in a buffering unit into a command for transfer in which redundant data transfer has been curtailed to transfer the command for transfer to a destination storage system. The destination storage system applies the received command to a storage unit. At this time, the command for transfer is restored to an ordinary command which is applied.
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