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    Systems, methods, and computer readable media for triggering and coordinating pool storage reclamation
    9.
    发明授权
    Systems, methods, and computer readable media for triggering and coordinating pool storage reclamation 有权
    用于触发和协调池存储回收的系统，方法和计算机可读介质

    公开(公告)号：US08407445B1

    公开(公告)日：2013-03-26

    申请号：US12751665

    申请日：2010-03-31

    申请人： Saurabh Pathak ,  David Haase ,  Miles de Forest ,  Robert F. Goudreau, Jr. ,  Paul T. McGrath

    发明人： Saurabh Pathak ,  David Haase ,  Miles de Forest ,  Robert F. Goudreau, Jr. ,  Paul T. McGrath

    IPC分类号： G06F12/02

    CPC分类号： G06F3/0608 ,  G06F3/0644 ,  G06F3/0665 ,  G06F3/0683

    摘要： Systems, methods, and computer readable media for triggering and coordinating pool storage reclamation are disclosed. According to one example, the method includes receiving an issued hint triggered by the execution of a data storage optimization operation applied to a mapped logical unit (MLU), wherein the MLU is one of a plurality of MLUs residing in a storage array, and computing an unused portion amount of an allocated storage space in the MLU, wherein the allocated storage space comprises a plurality of slices. If the unused portion amount exceeds a predetermined threshold value, detecting at least one of the slices to be released from the allocated storage space. The method also includes transferring data contained in a detected slice to at least one of the remaining slices in the allocated storage space, and removing the detected slice from the allocated storage space in the MLU to a common storage pool in the storage array, wherein the removed slice is allocated to any one of the plurality of MLUs.

    摘要翻译： 公开了用于触发和协调池存储回收的系统，方法和计算机可读介质。 根据一个示例，该方法包括：接收由执行应用于映射逻辑单元（MLU）的数据存储优化操作触发的发出提示，其中MLU是驻留在存储阵列中的多个MLU之一，以及计算 MLU中分配的存储空间的未使用部分量，其中所分配的存储空间包括多个片。 如果未使用部分数量超过预定阈值，则从所分配的存储空间检测要释放的切片中的至少一个。 该方法还包括将包含在检测到的切片中的数据传送到所分配的存储空间中的剩余切片中的至少一个切片，以及将检测到的切片从MLU中的分配的存储空间移除到存储阵列中的公共存储池，其中 删除的片分配给多个MLU中的任何一个。

    Systems, methods, and computer readable media for performance optimization of storage allocation to virtual logical units
    10.
    发明授权
    Systems, methods, and computer readable media for performance optimization of storage allocation to virtual logical units 有权
    用于对虚拟逻辑单元进行存储分配的性能优化的系统，方法和计算机可读介质

    公开(公告)号：US08751740B1

    公开(公告)日：2014-06-10

    申请号：US12751707

    申请日：2010-03-31

    申请人： Miles de Forest ,  Chetan Rameshchandra Vaidya ,  David Haase ,  Paul T. McGrath ,  Robert F. Goudreau, Jr. ,  Charles Christopher Bailey ,  Prabu Surendra

    发明人： Miles de Forest ,  Chetan Rameshchandra Vaidya ,  David Haase ,  Paul T. McGrath ,  Robert F. Goudreau, Jr. ,  Charles Christopher Bailey ,  Prabu Surendra

    IPC分类号： G06F13/00

    CPC分类号： G06F3/0631 ,  G06F3/061 ,  G06F3/0665 ,  G06F3/0689

    摘要： A system for performance optimization of storage allocation to virtual logical units includes a storage entity having data storage space divided into slices for storing data. A slice allocation table stores slice allocation status. A memory stores statistics regarding the allocation of slices to logical units. A management database stores information regarding the allocation of slices to logical units. An allocation module performs an allocation process in response to receiving an I/O write request. A management module performs scheduled post-I/O management processes asynchronously with allocation processes, including updating the management database to reflect the allocation of the selected slice, and updating the status of the selected slice in the slice allocation table to indicate that the post-I/O management process for the selected slice has been performed.

    摘要翻译： 用于对虚拟逻辑单元的存储分配的性能优化的系统包括存储实体，其具有被划分为用于存储数据的片段的数据存储空间。 片分配表存储片分配状态。 存储器存储关于切片分配到逻辑单元的统计数据。 管理数据库将关于切片分配的信息存储到逻辑单元。 响应于接收到I / O写请求，分配模块执行分配处理。 管理模块与分配过程异步地执行预定的后I / O管理过程，包括更新管理数据库以反映所选择的分片的分配，以及更新分片分配表中所选切片的状态， 所选切片的I / O管理过程已经执行。