Apparatus and method for obtaining free memory blocks in memory system

A memory system includes a memory device including a plurality of memory blocks, and a controller configured to perform garbage collection on a sacrificial block among the plurality of memory blocks. The controller is further configured to stop garbage collection in response to the interrupt and invalidate valid data items copied from the sacrificial block to the target block during garbage collection. 本申请涉及一种存储器系统，该存储器系统包括存储器装置和控制器，存储器装置包括多个存储块，控制器被配置为对多个存储块之中的牺牲块执行垃圾收集。控制器进一步被配置为响应于中断而停止垃圾收集，并且使在垃圾收集期间从牺牲块复制到目标块的有效数据项无效。