| 摘要 |
A shadow hardware system and method is provided. The shadow hardware system provides an interface between an access device and shadowed devices. Shadowed devices are devices that the shadow hardware system provides an interface to the access device although the shadowed device may not actually be present or available to the access device, such as implementing a disk drive as flash memory. The access device, such as a host processor, issues requests to a disk drive and the shadow hardware system converts the requests to requests suitable for the flash memory. A shadow remapper redirects the requests to shadow registers and notifies the shadow controller of the pending request. The shadow controller accesses the shadow registers and modifies the registers (if necessary) before forwarding the registers to the actual hardware devices. Any suitable device may be shadowed.
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