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    • 56. 发明申请
    • Logical volume management method and logical volume management program
    • 逻辑卷管理方法和逻辑卷管理程序
    • US20080065815A1
    • 2008-03-13
    • US11585111
    • 2006-10-24
    • Hiroshi NasuMasayuki YamamotoYuichi Taguchi
    • Hiroshi NasuMasayuki YamamotoYuichi Taguchi
    • G06F12/00
    • G06F3/0665G06F3/061G06F3/0616G06F3/064G06F3/0679G06F3/0688
    • There is provided a logical volume management method for storage system. When a logical volume is created on a flash memory drive, a management computer allocates logical volume while flash memory chip border of flash memory drive is taken into account. Specifically, a table for managing a correlation between each parity group and the flash memory chip of the flash memory drive is obtained and the logical volume is allocated in such a manner that a flash memory chip is not shared by a plurality of logical volumes. When complete erasing of logical volume data is performed, the management computer specifies a flash memory chip on which complete data erasing is to be performed, and the storage system completely erases data exclusively on the chip of interest with a use of a function of completely erasing data at a time by chip unit of the flash memory chip (chip erasing).
    • 为存储系统提供了逻辑卷管理方法。 当在闪存驱动器上创建逻辑卷时,管理计算机分配逻辑卷,同时考虑闪存驱动器的闪存芯片边框。 具体地,获得用于管理闪存驱动器的每个奇偶校验组和闪速存储器芯片之间的相关性的表,并且以使得闪存芯片不被多个逻辑卷共享的方式分配逻辑卷。 当执行逻辑卷数据的完全擦除时,管理计算机指定要执行完整数据擦除的闪存芯片,并且存储系统使用完全擦除的功能完全擦除感兴趣的芯片上的数据 闪存芯片的芯片单元一次的数据(芯片擦除)。