Control method for storage device, storage device, and electronic device

A storage device, comprising a processor and a storage unit, wherein, the processor is coupled to the storage unit and a host and is configured to execute instructions during operation to implement operations of:

• in response to to-be-written data sent by the host, writing, through a target mode, the to-be-written data into at least one storage unit of a plurality of storage units;
• wherein the plurality of storage units comprise at least one storage unit in a first type and at least one storage unit in a second type;
• the target mode comprises a first mode and a second mode;
• in the first mode, the to-be-written data is firstly stored in the storage unit in the first type and then migrated from the storage unit in the first type to the storage unit in the second type;
• in the second mode, the to-be-written data is directly stored in the storage unit in the second type;
• wherein the amount of data storable in each of the at least one storage unit in the first type is less than the amount of data storable in each of the at least one storage unit in the second type;
• counting a target erase/write count according to the target mode;
• wherein the target erase/write count is less than a sum of an actual erase/write count of the storage unit in the first type and an actual erase/write count of the storage unit in the second type;
• and
• in response to the target erase/write count being greater than an erase/write count threshold, shutting down the first mode.

An electronic device, comprising a processing device and a storage device, wherein, the processing device is coupled to the storage device, and is configured to execute instructions during operation to implement operations of:

• in response to to-be-written data sent by a host, writing, through a target mode, the to-be-written data into at least one storage unit of a plurality of storage units;
• wherein the plurality of storage units comprise at least one storage unit in a first type and at least one storage unit in a second type;
• the target mode comprises a first mode and a second mode;
• in the first mode, the to-be-written data is firstly stored in the storage unit in the first type and then migrated from the storage unit in the first type to the storage unit in the second type;
• in the second mode, the to-be-written data is directly stored in the storage unit in the second type;
• wherein the amount of data storable in each of the at least one storage unit in the first type is less than the amount of data storable in each of the at least one storage unit in the second type;
• counting a target erase/write count according to the target mode;
• wherein the target erase/write count is less than a sum of an actual erase/write count of the storage unit in the first type and an actual erase/write count of the storage unit in the second type;
• and
• in response to the target erase/write count being greater than an erase/write count threshold, shutting down the first mode.