| 摘要 |
<p>A fail-over switch (100, 102) for use in a data storage system that connects each of a plurality of data storage devices (112) to each of two communication paths (126, 128). The switch (100, 102) may route requests to either of the two communication paths (126, 128). Switching may be accomplished by two switches (100, 102) connected to each other and each in connection with one of the two communication paths (126, 128). With one data storage controller (90) in communication with the data storage devices (112) over a first path (126) and a second data storage controller (92) in communication with the data storage devices (112) over a second path (128), the fail-over switch (100, 102) may be used upon detection of a malfunction on one path to switch a controller into connection with the remaining operable path so as to share that path with the other controller.</p> |
