| 摘要 |
A nonvolatile storage system includes a plurality of nonvolatile memories and a control unit. When having detected a write-in error that occurred at an operation-subject nonvolatile memory, the control unit can set inter-chip alternate information indicating that a storage region related to the write-in error has been replaced by a storage region of any other nonvolatile memory of the plurality of nonvolatile memories to the nonvolatile memory of the storage region related to this error, so that when having received the inter-chip alternate information from the operation-subject nonvolatile memory, the control unit can change the operation subject from the current operation-subject nonvolatile memory to any other nonvolatile memory indicated by this inter-chip alternate information. It is thus possible to rescue a write-in error which occurred at one nonvolatile memory by replacing it with any other chip.
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