Method for storage system detection and alerting on potential malicious action

    公开(公告)号:US11144638B1

    公开(公告)日:2021-10-12

    申请号:US15874719

    申请日:2018-01-18

    Abstract: A method of storage system operation, and related computer-readable media and storage system are disclosed. One or more processors or storage system controllers monitor accesses of blocks of storage memory of the storage system. The monitoring is to detect one or more characteristics of the accesses of the blocks. From the characteristic(s), it is determined the one or more accesses of the blocks are indicative of a malicious action. In response to such determining, the storage system performs a reaction action.

    Copying data without accessing the data

    公开(公告)号:US11099769B1

    公开(公告)日:2021-08-24

    申请号:US16788771

    申请日:2020-02-12

    Abstract: A system and method for performing copy offload operations. When a copy offload operation from a first volume (pointing to a first medium) to a second volume (pointing to a second medium) is requested, the copy offload operation is performed without accessing the data being copied. A third medium is created, and the first medium is recorded as the underlying medium of the third medium. The first volume is re-pointed to the third medium. Also, a fourth medium is created, the second volume is re-pointed to the fourth medium, and the second medium is recorded as the underlying medium of the targeted range of the fourth medium. All other ranges of the fourth medium have the second medium as their underlying medium.

    Buffering copy requests in a storage system

    公开(公告)号:US10585617B1

    公开(公告)日:2020-03-10

    申请号:US15875189

    申请日:2018-01-19

    Abstract: A system and method for performing copy offload operations. When a copy offload operation from a first volume (pointing to a first medium) to a second volume (pointing to a second medium) is requested, the copy offload operation is performed without accessing the data being copied. A third medium is created, and the first medium is recorded as the underlying medium of the third medium. The first volume is re-pointed to the third medium. Also, a fourth medium is created, the second volume is re-pointed to the fourth medium, and the second medium is recorded as the underlying medium of the targeted range of the fourth medium. All other ranges of the fourth medium have the second medium as their underlying medium.

    EFFICIENT SPACE UTILIZATION IN A FLASH SYSTEM USING SNAPSHOTS

    公开(公告)号:US20190179535A1

    公开(公告)日:2019-06-13

    申请号:US16276451

    申请日:2019-02-14

    Abstract: A method including, responsive to receiving a request identifying a volume and indicating a command to take a snapshot of the volume, mapping a second logical grouping of data to reference the first logical grouping of data, and remapping the first volume to map to the second logical grouping of data instead of the first logical grouping of data such that the first volume remains addressable with similar access permissions before and after creating the snapshot. The method also includes, in response to receiving a write request targeting the second logical grouping, splitting the second logical grouping into a plurality of ranges including a first range and a second range; wherein the first range of the second logical grouping maps to the first logical grouping, and the write request is performed on the second range of the second logical grouping.

    Efficient Volume Replication In A Storage System

    公开(公告)号:US20190155523A1

    公开(公告)日:2019-05-23

    申请号:US16230560

    申请日:2018-12-21

    Abstract: An indication to replicate, for a second storage resource, a volume that is stored at a first storage resource may be received. A snapshot of the volume that is stored at the second storage resource may be identified. Data with operations to data blocks of the volume may be identified. A sequence number range, containing one or more sequence numbers, associated with the snapshot of the volume that is stored at the second resource may be received. Furthermore, a portion of the data associated with the operations to the data blocks of the volume based on the sequence number range that is associated with the snapshot of the volume that is stored at the second resource may be received to replicate the volume at the second storage resource.

    Utilizing unmapped and unknown states in a replicated storage system
    49.
    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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