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    • 3. 发明授权
    • Data migration from a non-raid volume to a raid volume
    • 数据从非raid卷迁移到raid卷
    • US07418548B2
    • 2008-08-26
    • US10716932
    • 2003-11-18
    • Francis R. CorradoDaniel Nemiroff
    • Francis R. CorradoDaniel Nemiroff
    • G06F12/00
    • G06F3/0665G06F3/0605G06F3/0647G06F3/0689G06F11/1441
    • In one embodiment, a method is provided that may include, issuing a read request to request reading of at least one portion of data stored in a first storage device and issuing a write request to request writing of the at least one portion of the data into a second storage device or at least one location in the first storage device. The at least one location may be comprised in a volume of a redundant array of inexpensive disks (RAID), the at least one portion of data being stored in a non-RAID volume in the first storage device. The method of this embodiment also may include, if a request to access one or more other portions of the data is received and/or issued by one or more operating system processes while the reading and/or the writing is occurring, issuing an access request to request accessing of the one or more other portions of the data. Of course, many modifications are possible without departing from this embodiment.
    • 在一个实施例中,提供了一种方法,其可以包括:发出读取请求以请求读取存储在第一存储设备中的数据的至少一部分,并发出写入请求,以请求将至少一部分数据写入到 第二存储设备或第一存储设备中的至少一个位置。 所述至少一个位置可以包括在廉价磁盘(RAID)的冗余阵列的卷中,所述至少一部分数据被存储在所述第一存储设备中的非RAID卷中。 该实施例的方法还可以包括,如果在读取和/或写入正在发生时由一个或多个操作系统进程接收和/或发出访问数据的一个或多个其他部分的请求,则发出访问请求 以请求访问数据的一个或多个其他部分。 当然,在不偏离本实施例的情况下,可以进行许多修改。
    • 4. 发明授权
    • Migrating data between storage volumes
    • 在存储卷之间迁移数据
    • US07421537B2
    • 2008-09-02
    • US10806500
    • 2004-03-22
    • Francis R. Corrado
    • Francis R. Corrado
    • G06F12/00
    • G06F3/0647G06F3/0619G06F3/064G06F3/0689G06F11/1443
    • Provided are a method, system, and program for migrating data between storage volumes. A source map is provided indicating blocks of data striped across a first plurality of storage units and a destination map is provided indicating blocks of data striped across a second plurality of storage units, wherein data is migrated from stripes indicated in the source map to corresponding stripes indicated in the destination map. In response to determining that the source stripe and the destination stripe occupy a same physical location on the storage units, the data from a source stripe is written to a copy area and writing the data from the copy area to a corresponding destination stripe.
    • 提供了一种用于在存储卷之间迁移数据的方法,系统和程序。 提供源地图,指示跨越第一多个存储单元划分的数据块,并且提供指示跨越第二多个存储单元条带化的数据块的目的地地图,其中数据从源地图中指示的条带迁移到相应的条带 在目的地图中指出。 响应于确定源条带和目的地条带在存储单元上占据相同的物理位置,来自源条带的数据被写入复制区域并将数据从复制区域写入相应的目的地条带。
    • 10. 发明授权
    • Method, system, and program for managing data migration
    • 用于管理数据迁移的方法,系统和程序
    • US07222135B2
    • 2007-05-22
    • US10747922
    • 2003-12-29
    • Francis R. CorradoDaniel Nemiroff
    • Francis R. CorradoDaniel Nemiroff
    • G06F17/30
    • G06F3/0647G06F3/0613G06F3/0689Y10S707/914Y10S707/99952
    • Provided are a method, system, and program for managing data migration from one data organization type to another. In one embodiment, a migration manager defers writing progress indicators to reduce data write operations during the migration process. In one embodiment, progress indicators are written to configuration areas of disk drives when a condition is met. One example of a condition is the expiration of a time period since the last progress indicator was written. Another example of a condition is an overlap between the destination of a unit of data being migrated and the source of the unit of data. Yet another example is an overlap between the destination of a unit of data and a portion of the data source which has been copied but a progress indicator has not yet been written covering the data source portion.
    • 提供了一种用于管理从一种数据组织类型到另一种数据组织类型的数据迁移的方法,系统和程序。 在一个实施例中,迁移管理器延迟写入进度指示符以减​​少迁移过程期间的数据写入操作。 在一个实施例中,当满足条件时,将进度指示器写入磁盘驱动器的配置区域。 条件的一个例子是自写入最后一个进度指示器以来的时间段到期。 条件的另一个例子是被迁移的数据单元的目的地与数据单元的源之间的重叠。 又一示例是数据单元的目的地与已被复制的数据源的一部分之间的重叠,但进度指示符尚未被写入覆盖数据源部分。