Method of allowing point-in-time view of data on a disk
    2.
    发明授权
    Method of allowing point-in-time view of data on a disk 有权
    允许磁盘上数据的时间点视图的方法

    公开(公告)号:US07159085B2

    公开(公告)日:2007-01-02

    申请号:US10126711

    申请日:2002-04-19

    IPC分类号: G06F12/00

    摘要: A method allows point-in-time viewing of session data for multiple sessions being stored on a disk. Session bits are set for the session data in memory which points to the data at any particular point in time, and this can be done for multiple sessions. In order to make the session data persistent, separate session bits are stored in a portion of a disk reserved for such session bits. Thus, in the event of failure where session bits which are stored in volatile memory such as RAM, are lost, the duplicate copy set in the non-volatile memory can be used to recreate the session once the failure is corrected.

    摘要翻译: 一种方法允许对存储在磁盘上的多个会话的会话数据的时间点进行查看。 会话位被设置为在任何特定时间点指向数据的存储器中的会话数据,并且这可以在多个会话中完成。 为了使会话数据持续存在,单独的会话位被存储在为这种会话位保留的磁盘的一部分中。 因此,在存储在诸如RAM的易失性存储器中的会话位丢失的情况下,在非易失性存储器中设置的复制副本可以被用于在故障被修正之后重新创建会话。