Method for detecting data storage system, device and data storage system

A data storage system, comprising:

• a first switch including a first downstream port;
• a second switch including a second downstream port connected to the first downstream port;
• a first processor connected to the first switch via an upstream port of the first switch;
• a second processor connected to the second switch via an upstream port of the second switch;
• a storage device array to which both the first switch and the second switch are connected;
• wherein the first switch is configured to acquire, through the first downstream port, information indicating an error of the storage device array inserted at the second downstream port.

An electronic device, comprising:

• a processor and a first switch which are operative to form at least part of a data storage system, wherein the processor is constructed and arranged to:
• acquire, through a first downstream port of the first switch of the data storage system, information indicating an error of a storage device array from a second switch of the data storage system, wherein the first switch and the second switch are connected to the storage device array and the first downstream port is connected to a second downstream port of the second switch,
• execute, based on the acquired information, actual actions intended for solving the error, and
• in response to the executed actual actions failing to match with expected actions for the error, issue an alarm indicating failure of processing the error.