Use of copy location to selectively set or selectively clear bits of metadata during live migration

    公开(公告)号:US11586372B2

    公开(公告)日:2023-02-21

    申请号:US17450409

    申请日:2021-10-08

    Abstract: A method for tracking a progress of data copying for a live migration includes transferring, by a storage controller, a first data structure to a live migration server, the first data structure including a first status identifier indicating a location of a source data to be copied from a source storage to a target storage, and selectively generating or selectively clearing, by the storage controller, a second status identifier in or from a second data structure, based on a first current copying location of the live migration server, the second status identifier indicating a location of a first user data write to the source storage.

    SYSTEMS AND METHODS FOR ARBITRATING ACCESS TO A SHARED RESOURCE

    公开(公告)号:US20220019471A1

    公开(公告)日:2022-01-20

    申请号:US17076681

    申请日:2020-10-21

    Abstract: Systems and methods for arbitrating access of a shared resource are disclosed. Data is received from various sources and stored in various queues. A first data structure is generated based on the stored data. The first data structure may be associated with two dimensions (e.g. a first dimension associated with sources and a second dimension associated with destinations). A second data structure is generated based on the first data structure. The second data structure may be associated with one dimension. The one dimension may include the second dimension. A first arbitration is performed based on the second data structure for selecting a destination. A second arbitration is performed based on the first data structure and the selected destination for selecting a source. Data stored in one of the queues associated with the selected source and the selected destination is retrieved, and the retrieved data is provided to the shared resource.

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