| 摘要 |
<p>Embodiments of the invention provide a method and apparatus for storage subsystem migration without re-configuration of the I/O path. In one embodiment, a computer system comprises s first storage subsystem, a second storage subsystem, and a computer device connected via a network. The first storage subsystem has a first port name for a first port through which a first volume in the first storage subsystem has I/O connection with the computer device. The second storage subsystem defies a first virtual volume which is associated with the first volume, and a first virtual port having a first virtual port name that is identical to the first port name, After activation of the first virtual port, the computer device switches I/O connection for the first volume from the first storage subsystem to the second storage subsystem via the network using the first virtual port name on the second storage subsystem.</p> |
