| 摘要 |
Apparatus and associated method concerning managing access commands with a main storage space, a volatile buffer, and a nonvolatile buffer. The volatile buffer is configured to store a plurality of command nodes that are associated with data access commands received from a remote device and directed to the main storage space. The apparatus also has command prioritizing logic configured for using a prescribed rule in repeatedly identifying two or more candidate command nodes of the plurality that are at least individually favored for execution with respect to the main storage space, for selecting one of the candidate command nodes for the execution, and for transferring a nonselected one of the candidate command nodes from the volatile buffer to the nonvolatile buffer where the nonselected command node continues to be considered for execution with respect to the main storage space but is no longer considered by the prescribed rule when identifying subsequent candidate command nodes in the volatile buffer.
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