Storage apparatus and storage apparatus migration method

摘要

A source remote copy configuration in a source storage system is migrated to a destination storage system as a destination remote copy configuration. The destination primary storage apparatus of the destination storage system defines a virtual volume mapped to the primary volume provided by the source primary storage apparatus which is a storage area of the virtual volume; takes over a first identifier of the primary volume to the virtual volume; transfers, when the virtual volume receives an access request, the access request to the source primary storage apparatus to write data in the primary volume; and takes over the first identifier from the virtual volume to another primary volume provided by the destination primary storage apparatus, after completion of copy of data from primary volume of the source primary storage apparatus into primary volume of the destination primary storage apparatus and secondary volume of the destination secondary storage apparatus.

主权项

1. A destination storage system coupled to a host computer and a source storage system including a source replication pair which is composed of a source primary volume and a source secondary volume, the source replication pair being migrated to a destination replication pair in the destination storage system, the destination storage system comprising:
a destination primary storage apparatus providing a destination primary volume of the destination replication pair; and a destination secondary storage apparatus providing a destination secondary volume of the destination replication pair, wherein the destination storage system is configured to:
execute a copy of data stored in the source primary volume to the destination primary volume and the destination secondary volume;receive a write request from the host computer during the copy to the destination primary volume and the destination secondary volume; andsend data regarding to the write request to the source storage system until the copy to both of the destination primary volume and the destination secondary volume is completed so that the data is stored in both of the source primary volume and the source secondary volume.