Variable space page mapping method and apparatus for flash memory device
    1.
    发明授权
    Variable space page mapping method and apparatus for flash memory device 有权
    闪存设备的可变空间页面映射方法和装置

    公开(公告)号:US08200889B2

    公开(公告)日:2012-06-12

    申请号:US12572165

    申请日:2009-10-01

    IPC分类号: G11C11/34 G06F12/00

    摘要: Disclosed is a method and apparatus embodying a flash translation layer (FTL) in a storage device including a flash memory. The FTL may classify a block into a sequential group and a fusion group based on a locality of a write request. The FTL may store data in blocks of the fusion group by using a page mapping scheme, and sequentially store data by using a block mapping scheme. The FTL may improve efficiency of garbage collection operation that is performed by using limited redundant blocks and also may increase efficiency of a non-sequential reference operation.

    摘要翻译: 公开了一种在包括闪速存储器的存储设备中体现闪存转换层(FTL)的方法和装置。 FTL可以根据写请求的位置将块分类为顺序组和融合组。 FTL可以通过使用页面映射方案将数据存储在融合组的块中,并且通过使用块映射方案来顺序地存储数据。 FTL可以提高通过使用有限冗余块执行的垃圾回收操作的效率,并且还可以提高非顺序参考操作的效率。

    VARIABLE SPACE PAGE MAPPING METHOD AND APPARATUS FOR FLASH MEMORY DEVICE
    2.
    发明申请
    VARIABLE SPACE PAGE MAPPING METHOD AND APPARATUS FOR FLASH MEMORY DEVICE 有权
    可变空间页面映射方法和闪存存储器件的设备

    公开(公告)号:US20100082886A1

    公开(公告)日:2010-04-01

    申请号:US12572165

    申请日:2009-10-01

    IPC分类号: G06F12/02

    摘要: Disclosed is a method and apparatus embodying a flash translation layer (FTL) in a storage device including a flash memory. The FTL may classify a block into a sequential group and a fusion group based on a locality of a write request. The FTL may store data in blocks of the fusion group by using a page mapping scheme, and sequentially store data by using a block mapping scheme. The FTL may improve efficiency of garbage collection operation that is performed by using limited redundant blocks and also may increase efficiency of a non-sequential reference operation.

    摘要翻译: 公开了一种在包括闪速存储器的存储设备中体现闪存转换层(FTL)的方法和装置。 FTL可以根据写请求的位置将块分类为顺序组和融合组。 FTL可以通过使用页面映射方案将数据存储在融合组的块中,并且通过使用块映射方案来顺序地存储数据。 FTL可以提高通过使用有限冗余块执行的垃圾回收操作的效率,并且还可以提高非顺序参考操作的效率。