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    MAPPING IN A STORAGE SYSTEM
    22.
    发明公开
    MAPPING IN A STORAGE SYSTEM 审中-公开
    画中画的存储系统

    公开(公告)号：EP2745197A1

    公开(公告)日：2014-06-25

    申请号：EP12754134.0

    申请日：2012-08-16

    申请人： Pure Storage, Inc.

    发明人： COLGROVE, John ,  HAYES, John ,  MILLER, Ethan ,  SANDVIG, Cary

    IPC分类号： G06F3/06 ,  G06F11/14

    CPC分类号： G06F3/0644 ,  G06F3/0608 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/065 ,  G06F3/0665 ,  G06F3/0668 ,  G06F3/067

    摘要： A system and method for maintaining a mapping table in a data storage subsystem. A data storage subsystem supports multiple mapping tables. Records within a mapping table are arranged in multiple levels which may be logically ordered by time. Each level stores pairs of a key value and a pointer value. New records are inserted in a created new (youngest) level. All levels other than the youngest may be read only. In response to detecting a flattening condition, a data storage controller is configured to identify a group of two or more adjacent levels of the plurality of levels for flattening which are logically adjacent in time. A new level is created and one or more records stored within the group are stored in the new level, in response to detecting each of the one or more records stores a unique key among keys stored within the group.

    DYNAMIC RAID GEOMETRIES IN AN SSD ENVIRONMENT
    23.
    发明公开
    DYNAMIC RAID GEOMETRIES IN AN SSD ENVIRONMENT 审中-公开
    在EINRR SSD环境中的动态RAID槽型

    公开(公告)号：EP2622476A1

    公开(公告)日：2013-08-07

    申请号：EP11761771.2

    申请日：2011-09-19

    申请人： Pure Storage, Inc.

    发明人： COLGROVE, John ,  HAYES, John ,  HONG, Bo ,  MILLER, Ethan

    IPC分类号： G06F11/10 ,  G06F3/06

    CPC分类号： G06F3/0632 ,  G06F3/0605 ,  G06F3/0614 ,  G06F3/0688 ,  G06F11/1076 ,  G06F11/3034 ,  G06F11/3055 ,  G06F2211/1057 ,  G06F2211/1059

    摘要： A system and method for dynamic RAID geometries. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array is configured to configure a first subset of the storage devices for use in a first RAID layout, the first RAID layout including a first set of redundant data. The controller further configures a second subset of the storage devices for use in a second RAID layout, the second RAID layout including a second set of redundant data. Additionally, the controller configure an additional device not included in either the first subset or the second subset to store redundant data for both the first RAID layout and the second RAID layout.