| 摘要 |
A hard disk backboard for connecting a plurality of hard disk drives to a first processor and a second processor includes a plurality of hard disk connectors, a multiplexer and a controlling unit. The multiplexer includes at least one group of first connecting pins connecting to a part of the connectors, at least one group of second connecting pins configured to be connected to the first processor, at least one group of third connecting pins configured to be connected to the second processor. The controlling unit controls the at least one group of first connecting pins to alternatively connect to the at least one group of second connecting pins or to the at least one group of third connecting pins.
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