Optimizing storage allocation in a storage system

    公开(公告)号:US10114574B1

    公开(公告)日:2018-10-30

    申请号:US15339524

    申请日:2016-10-31

    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.

    Replication to the cloud
    3.
    发明授权

    公开(公告)号:US10545987B2

    公开(公告)日:2020-01-28

    申请号:US14577110

    申请日:2014-12-19

    Abstract: Systems, methods, and computer readable storage mediums for replicating data to the cloud. A first dataset is replicated from a first storage subsystem to the cloud, with only the changes made to the first dataset since a previous replication event being replicated to the cloud. Additionally, the data may be deduplicated and compressed before being replicated from the first storage subsystem to the cloud. In some cases, the first dataset may be replicated to the cloud in a stream format which is not directly usable and then, at a later point in time, loaded onto a second storage subsystem from the cloud.

    Optimizing replication by distinguishing user and system write activity

    公开(公告)号:US10430282B2

    公开(公告)日:2019-10-01

    申请号:US14508698

    申请日:2014-10-07

    Abstract: Systems, methods, and computer readable storage mediums for maintaining the history of remapped data in a storage system. A first portion of a first medium may be remapped to a second medium as part of read optimization operations, wherein the second medium is younger than the first medium. A tag associated with the first portion of the first medium may be retained when the first portion is remapped to the second medium. When the second medium is replicated to another storage array, the first portion of the first medium may be prevented from being replicated based on the tag identifying the first portion as being part of a previous replication operation.

    OPTIMIZING REPLICATION BY DISTINGUISHING USER AND SYSTEM WRITE ACTIVITY
    5.
    发明申请
    OPTIMIZING REPLICATION BY DISTINGUISHING USER AND SYSTEM WRITE ACTIVITY 审中-公开
    通过辨认用户和系统写入活动优化复制

    公开(公告)号:US20160098191A1

    公开(公告)日:2016-04-07

    申请号:US14508698

    申请日:2014-10-07

    Abstract: Systems, methods, and computer readable storage mediums for maintaining the history of remapped data in a storage system. A first portion of a first medium may be remapped to a second medium as part of read optimization operations, wherein the second medium is younger than the first medium. A tag associated with the first portion of the first medium may be retained when the first portion is remapped to the second medium. When the second medium is replicated to another storage array, the first portion of the first medium may be prevented from being replicated based on the tag identifying the first portion as being part of a previous replication operation.

    Abstract translation: 用于维护存储系统中重映射数据的历史的系统,方法和计算机可读存储介质。 作为读取优化操作的一部分,可以将第一介质的第一部分重新映射到第二介质,其中第二介质比第一介质更年轻。 当第一部分被重新映射到第二介质时,可以保持与第一介质的第一部分相关联的标签。 当第二介质被复制到另一存储阵列时,可以基于标识第一部分的标签作为先前复制操作的一部分来防止第一介质的第一部分被复制。

    Utilizing unmapped and unknown states in a replicated storage system
    8.
    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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