| 摘要 |
A control module includes an encoder module, which generates a first code word for multiple drives. A detector module, in response to detecting an error in a first drive subsequent to generation of the first code word, initiates replacement of the first drive with a second drive. The encoder module generates a second code word for the second drive. A mapping module maps physical locations of data in the drives to logical locations of the first code word, assigns a predetermined value to one of the logical locations corresponding to the first drive to identify an unused logical location, and assigns the unused logical location to the second drive based on the predetermined value. A difference module generates a third code word based on the first and second code words. The encoder module generates an updated code word for the multiple drives based on the first and third code words.
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