Storage unit access method, storage unit repair method, die, and memory chip

A storage unit access method, applied to a storage apparatus including at least one storage unit, wherein the method comprises:

• receiving an access request that is sent by a repair apparatus and comprises an access address, wherein the access address comprises a redundant address of a redundant unit in the storage apparatus, and the redundant unit is configured to replace a failed unit in the at least one storage unit, the storage apparatus includes a transceiver and a processing circuit, and the repair apparatus includes a processing circuit and a memory;
• accessing the redundant address;
• and
• sending an access response to the repair apparatus,
• wherein the method further comprises:
• sending an access response that comprises the redundant address of the redundant unit to the repair apparatus, so that, in response to the access response, the repair apparatus replaces the redundant address of the redundant unit with the original address of the failed unit based on global repair information and sends an access response that comprises the original address of the failed unit to a bus, wherein the global repair information comprises one or more original addresses of at least one failed unit in the storage apparatus and the redundant address of the redundant unit configured to replace each failed unit in the at least one failed unit.

A storage unit access method, applied to a storage apparatus including at least one storage unit, wherein the method comprises:

• receiving an access request that is sent by a repair apparatus and comprises an access address, wherein the access address comprises a redundant address of a redundant unit in the storage apparatus, the redundant unit is configured to replace a failed unit in the at least one storage unit, the storage apparatus includes a transceiver and a processing circuit, and the repair apparatus includes a processing circuit and a memory;
• accessing the redundant address;
• and
• sending an access response to the repair apparatus,
• wherein the method further comprises:
• sending an access response that comprises the redundant address of the redundant unit to the repair apparatus, so that, in response to the access response, the repair apparatus replaces the redundant address of the redundant unit with an original address of the failed unit based on global repair information and sends an access response that comprises the original address of the failed unit to a bus, wherein the global repair information comprises one or more original addresses of at least one failed unit in the storage apparatus and the redundant address of the redundant unit configured to replace each failed unit in the at least one failed unit.

A repair apparatus, comprising an interface, at least one processor, and at least one memory, wherein

• the interface is configured to connect to a storage apparatus, wherein the storage apparatus includes a transceiver and a processing circuit;
• the at least one memory is configured to store instructions that, when executed by the at least one processor, cause the repair apparatus to:
• receive an access request that comprises an access address, wherein the access address comprises one or more original addresses of at least one storage unit in a storage apparatus;
• identify, based on global repair information, whether a failed unit exists in the storage unit to which the access address points, wherein the global repair information comprises one or more original addresses of at least one failed unit in the storage apparatus and a redundant address of a redundant unit configured to replace each failed unit in the at least one failed unit;
• upon identification that a first failed unit exists in the storage unit to which the access address points, replace an original address that is in the access address and that points to the first failed unit with a redundant address of a first redundant unit corresponding to the first failed unit;
• and
• send an access request obtained after replacing the original address with the redundant address,
• wherein the instructions, when executed by the at least one processor, further cause the repair apparatus to:
• receive an access response that comprises the redundant address of the first redundant unit and that is sent by the storage apparatus;
• in response to the access response, replace the redundant address of the first redundant unit with the original address of the first failed unit based on the global repair information;
• and
• send an access response that comprises the original address of the first failed unit to a bus.

A non-transitory storage medium storing information comprising instructions that, when executed by at least one processor, control the at least one processor to perform operations comprising:

• receiving an access request that comprises an access address, wherein the access address comprises one or more original addresses of at least one storage unit in a storage apparatus wherein the storage apparatus includes a transceiver and a processing circuit;
• identifying, based on global repair information, whether a failed unit exists in the storage unit to which the access address points, wherein the global repair information comprises one or more original addresses of at least one failed unit in the storage apparatus and a redundant address of a redundant unit configured to replace each failed unit in the at least one failed unit;
• upon identification that a first failed unit exists in the storage unit to which the access address points, replacing an original address that is in the access address and that points to the first failed unit with a redundant address of a first redundant unit corresponding to the first failed unit;
• and
• sending an access request obtained after replacing the original address with the redundant address,
• wherein, before receiving the access request, the operations further comprise:
• receiving an access response that comprises the redundant address of the first redundant unit and that is sent by the storage apparatus;
• in response to the access response, replacing the redundant address of the first redundant unit with the original address of the first failed unit based on the global repair information;
• and
• sending an access response that comprises the original address of the first failed unit to a bus.