Patent attributes
Provided is a memory system coupled to a plurality of hosts each including an FTL. The memory system may include: a controller suitable for allowing only a write request to be received from any one of the plurality of hosts, when a write lock for a write request from the any one host is set; and a memory device controlled by the controller, and suitable for performing a write operation according to the write request from the any one host, wherein the controller includes: a lock manager suitable for setting a write lock depending on whether a lock is set in the memory device, and releasing the write lock when the write operation is completed; and a sync manager suitable for controlling synchronization of FTL metadata of the FTLs of the other hosts excluding the any one host, according to whether the write operation is successfully performed.