Storage system and computing system comprising the same

A storage system comprising:

• a first compute express link (CXL) storage device configured to be connected to a host through a CXL interface;
• and
• a second CXL storage device configured to be connected to the host through the CXL interface,
• wherein the first CXL storage device includes:
• a first CXL storage controller;
• a first non-volatile memory controlled by the first CXL storage controller;
• and
• a first shared memory including information about a first degree of degradation of the first non-volatile memory,
• wherein the second CXL storage device includes:
• a second CXL storage controller;
• a second non-volatile memory controlled by the second CXL storage controller;
• and
• a second shared memory including information about a second degree of degradation of the second non-volatile memory, the second shared memory being accessible by the first CXL storage controller through the CXL interface, and
• wherein the first CXL storage controller is configured to:
• receive a command related to an operation of the first non-volatile memory from the host, and
• control the second CXL storage controller to perform the command based on identifying that the command is not processed in the first CXL storage device.

A computing system comprising:

• a host;
• and
• a storage system including a first compute express link (CXL) storage device and a second CXL storage device configured to be connected to the host through a CXL interface,
• wherein the first CXL storage device includes:
• a first CXL storage controller;
• a first non-volatile memory controlled by the first CXL storage controller;
• and
• a first shared memory including information about a first degree of degradation of the first non-volatile memory,
• wherein the second CXL storage device includes:
• a second CXL storage controller;
• a second non-volatile memory controlled by the second CXL storage controller;
• and
• a second shared memory including information about a second degree of degradation of the second non-volatile memory, the second shared memory being accessible by the first CXL storage controller through the CXL interface, and
• wherein the first CXL storage controller is configured to:
• receive a command related to an operation of the first non-volatile memory from the host, and
• control the second CXL storage controller to perform the command without performing the command by the first CXL storage controller, based on identifying that the first degree of degradation is higher than the second degree of degradation.