| 摘要 |
<p>A mirror set copy from a first storage device (10) and controller (70) to a second storage device (20) and a controller (85) is performed in a computer system (100) in which write requests (50) are each associated with a reference label. A mirror read request (60) is received at the first storage device, while write requests are received and processed at the first device and received at both. The first storage device then sends the data and label to the second, after which the second storage device writes the data. The second device processes write requests until it finds a request with the same reference label as that sent with the data.</p> |
