UTILIZING UNMAPPED AND UNKNOWN STATES IN A REPLICATED STORAGE SYSTEM
    21.
    发明申请
    UTILIZING UNMAPPED AND UNKNOWN STATES IN A REPLICATED STORAGE SYSTEM 有权
    在不同的存储系统中应用未知和未知状态

    公开(公告)号:US20160098199A1

    公开(公告)日:2016-04-07

    申请号:US14508683

    申请日:2014-10-07

    Abstract: A system and method for utilizing unmapped and unknown states in a storage system. When a first portion of a first medium is determined to be unreachable from any other mediums, the first portion of the first medium may be put into an unmapped state, and its data may be discarded and the corresponding storage locations may be freed. During replication of the first medium to a replica storage array, the state of the first portion of the first medium may be translated from the unmapped state into an unknown state on the replica storage array. If another storage array has the data of the first portion of the first medium, this data may be used to overwrite the first portion of the first medium on the replica storage array, converting the first portion of the first medium from the unknown state into the mapped state.

    Abstract translation: 一种用于在存储系统中利用未映射和未知状态的系统和方法。 当第一介质的第一部分被确定为不能从任何其他介质访问时,第一介质的第一部分可以被置于未映射状态,并且其数据可能被丢弃,并且相应的存储位置可以被释放。 在将第一介质复制到副本存储阵列期间,可以将第一介质的第一部分的状态从未映射状态转换为副本存储阵列上的未知状态。 如果另一存储阵列具有第一介质的第一部分的数据,则可以使用该数据来覆盖副本存储阵列上的第一介质的第一部分,将第一介质的第一部分从未知状态转换为 映射状态。

    Cloud-based disaster recovery of a storage system

    公开(公告)号:US11061786B1

    公开(公告)日:2021-07-13

    申请号:US16263090

    申请日:2019-01-31

    Abstract: Systems, methods, and computer readable storage mediums for generating an alert on a failure of a storage subsystem to phone home to the cloud in a replication environment. A dataset is replicated from a first storage subsystem to a second storage subsystem. The first and second storage subsystems also phone home log data to the cloud on a periodic basis. In response to detecting a failure of the first storage subsystem to phone home, the cloud generates and sends an alert to the second storage subsystem. In response to receiving this alert, the second storage subsystem starts disaster recovery operations for the dataset.

    Deduplicating patterned data in a storage system

    公开(公告)号:US10783131B1

    公开(公告)日:2020-09-22

    申请号:US15861279

    申请日:2018-01-03

    Abstract: A system and method for efficiently storing data in a storage system. A data storage subsystem includes multiple data storage locations on multiple storage devices in addition to at least one mapping table. A data storage controller determines whether data to store in the storage subsystem has one or more patterns of data intermingled with non-pattern data within an allocated block. Rather than store the one or more pattern on the storage devices, the controller stores information in a header on the storage devices. The information includes at least an offset for the first instance of a pattern, a pattern length, and an identification of the pattern. The data may be reconstructed for a corresponding read request from the information stored in the header.

    Utilizing unmapped and unknown states in a replicated storage system
    26.
    发明授权
    Utilizing unmapped and unknown states in a replicated storage system 有权
    在复制的存储系统中利用未映射和未知状态

    公开(公告)号:US09489132B2

    公开(公告)日:2016-11-08

    申请号:US14508683

    申请日:2014-10-07

    Abstract: A system and method for utilizing unmapped and unknown states in a storage system. When a first portion of a first medium is determined to be unreachable from any other mediums, the first portion of the first medium may be put into an unmapped state, and its data may be discarded and the corresponding storage locations may be freed. During replication of the first medium to a replica storage array, the state of the first portion of the first medium may be translated from the unmapped state into an unknown state on the replica storage array. If another storage array has the data of the first portion of the first medium, this data may be used to overwrite the first portion of the first medium on the replica storage array, converting the first portion of the first medium from the unknown state into the mapped state.

    Abstract translation: 一种用于在存储系统中利用未映射和未知状态的系统和方法。 当第一介质的第一部分被确定为不能从任何其他介质访问时,第一介质的第一部分可以被置于未映射状态,并且其数据可能被丢弃,并且相应的存储位置可以被释放。 在将第一介质复制到副本存储阵列期间,可以将第一介质的第一部分的状态从未映射状态转换为副本存储阵列上的未知状态。 如果另一存储阵列具有第一介质的第一部分的数据,则可以使用该数据来覆盖副本存储阵列上的第一介质的第一部分,将第一介质的第一部分从未知状态转换为 映射状态。

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