Efficient garbage collection in a data storage device
    1.
    发明授权
    Efficient garbage collection in a data storage device 有权
    数据存储设备中高效的垃圾回收

    公开(公告)号:US08898410B1

    公开(公告)日:2014-11-25

    申请号:US13771913

    申请日:2013-02-20

    IPC分类号: G06F12/00 G06F12/02

    CPC分类号: G06F12/0246 G06F2212/7205

    摘要: A method includes determining which of a plurality of blocks of data in a data storage device having a plurality of memory devices to copy during garbage collection using a cost function based on a number of free pages and a number of replicated pages in each of the blocks, where the replicated pages include replicated data that is a copy of data stored in another storage device and determining not to copy one or more of the blocks of data during garbage collection based on the cost function.

    摘要翻译: 一种方法包括基于每个块中的空闲页数和复制页数,确定具有多个存储器设备的数据存储设备中的哪个数据块在垃圾收集期间使用成本函数进行复制 ,其中复制页面包括作为存储在另一存储设备中的数据的副本的复制数据,并且基于成本函数确定在垃圾收集期间不复制一个或多个数据块。