Methods and apparatus for allocating memory arrangement addresses to a buffer chip, during an initialization mode, for use in addressing one or more memory arrangements connected to the buffer chip are provided. A buffer circuit may receive first initialization data specifying a first set of available memory arrangement addresses and associate one or more of the first set of available memory arrangement addresses with the one or more memory arrangements connected to the buffer chip. The buffer circuit may also generate second initialization data specifying the set of available memory arrangement addresses available after the association. The second initialization data may be transmitted to another buffer circuit for use in address allocation or back to a memory access control unit.

 
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> Method, apparatus, and system for preserving cache data of redundant storage controllers

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