公开(公告)号：US08886909B1

公开(公告)日：2014-11-11

申请号：US12100514

申请日：2008-04-10

申请人： Miles Aram De Forest ,  Charles Christopher Bailey ,  Michael D. Haynes ,  David Haase ,  Jackson Brandon Myers ,  Dipak Prasad

发明人： Miles Aram De Forest ,  Charles Christopher Bailey ,  Michael D. Haynes ,  David Haase ,  Jackson Brandon Myers ,  Dipak Prasad

IPC分类号： G06F12/00 ,  G06F13/00 ,  G06F13/28 ,  G06F9/46

CPC分类号： G06F13/28 ,  G06F3/061 ,  G06F3/0631 ,  G06F3/0644 ,  G06F3/0689 ,  Y02D10/14

摘要： Systems, methods, and computer readable medium for allocating physical storage in a disk array are disclosed. According to one aspect, the subject matter described herein includes a method for allocating portions of storage area of a storage array. The method includes receiving, from a requesting entity, a request for allocation of a portion of storage area of a storage array, the storage array comprising a plurality of storage entities and a plurality of data buses for transferring data to and from the plurality of storage entities, wherein the plurality of storage entities are organized into at least one logical unit, wherein each logical unit is subdivided into at least one slice. In response to receiving the request for allocation, at least one slice is selected for allocation for use by the requesting entity, based on anticipated system resource utilization during access to data to be stored in the storage array.

摘要翻译： 公开了用于在磁盘阵列中分配物理存储的系统，方法和计算机可读介质。 根据一个方面，本文描述的主题包括用于分配存储阵列的存储区域的部分的方法。 该方法包括从请求实体接收对存储阵列的一部分存储区域的分配的请求，所述存储阵列包括多个存储实体和用于向多个存储器传送数据的多个数据总线 实体，其中所述多个存储实体被组织成至少一个逻辑单元，其中每个逻辑单元被细分为至少一个片。 响应于接收到分配请求，基于访问要存储在存储阵列中的数据的预期系统资源利用率，选择至少一个片段供分配供请求实体使用。

公开(公告)号：US08443369B1

公开(公告)日：2013-05-14

申请号：US12164959

申请日：2008-06-30

申请人： Charles Christopher Bailey ,  Miles Aram de Forest ,  Michael Burriss ,  David Haase ,  Dipak Prasad ,  Brandon Myers

发明人： Charles Christopher Bailey ,  Miles Aram de Forest ,  Michael Burriss ,  David Haase ,  Dipak Prasad ,  Brandon Myers

IPC分类号： G06F9/46

CPC分类号： G06F3/0631 ,  G06F3/0625 ,  G06F3/0689 ,  Y02D10/154

摘要： Systems, methods, and computer readable medium for optimizing storage allocations based on system resources are disclosed. According to one aspect, the subject matter described herein includes a method for dynamic, policy-based allocation of system resources. The method includes specifying a plurality of system resource collections for representing sets of like system resources and their dependencies. An order in which the collections are to be evaluated during selection of a resource is also specified. A policy for determining the best resource within each collection is also specified. Statistics about the system resources in the collections are maintained. A request for a resource is received. In response to receiving the request, the collections are evaluated in the specified order. The best resource is selected from each collection based on the dependencies, prior selections, and statistics to implement the policy.

摘要翻译： 公开了用于基于系统资源优化存储分配的系统，方法和计算机可读介质。 根据一个方面，本文描述的主题包括用于系统资源的基于策略的动态分配的方法。 该方法包括指定多个系统资源集合，用于表示相似的系统资源集合及其依赖关系。 还指定了在选择资源期间对集合进行评估的顺序。 还规定了确定每个集合中最佳资源的策略。 维护集合中系统资源的统计信息。 收到资源请求。 响应收到请求，按指定顺序对集合进行评估。 根据依赖关系，先前的选择以及实施策略的统计信息，从每个集合中选择最佳资源。

公开(公告)号：US08296530B1

公开(公告)日：2012-10-23

申请号：US12165032

申请日：2008-06-30

申请人： Dipak Prasad ,  Sriram Nagasubramanian ,  Carson Jeffrey Barker ,  David W. Harvey ,  Miles de Forest ,  Charles Christopher Bailey

发明人： Dipak Prasad ,  Sriram Nagasubramanian ,  Carson Jeffrey Barker ,  David W. Harvey ,  Miles de Forest ,  Charles Christopher Bailey

IPC分类号： G06F12/00

CPC分类号： G06F3/0605 ,  G06F3/0665 ,  G06F3/0689

摘要： According to one aspect, the subject matter described herein includes a method for optimizing the number of data writes to virtually provisioned logical units of a physical data storage array. The method is performed at a virtual provisioning layer associated with a physical storage array and includes receiving, from a client, a first write request for writing data to a first portion of a first data block of a virtually provisioned logical unit (VLUN) of the physical data storage array, wherein the size of the first portion is less than the size of the first data block. In response to receiving the first write request, a combined write request is generated from the virtual provisioning layer, where the combined write request is for writing the first portion of the data from the received write request and a second portion of fill data such that a size of the first portion and the second portion is equal to a size of the first data block. The second write request is then forwarded to the physical layer associated with the data storage array.

摘要翻译： 根据一个方面，本文描述的主题包括用于优化对物理数据存储阵列的虚拟供应的逻辑单元的数据写入数量的方法。 该方法在与物理存储阵列相关联的虚拟供应层处执行，并且包括从客户端接收用于将数据写入到虚拟供应逻辑单元（VLUN）的第一数据块的第一部分的第一写入请求 物理数据存储阵列，其中第一部分的大小小于第一数据块的大小。 响应于接收到第一写请求，从虚拟供应层生成组合写请求，其中组合写请求用于从接收的写请求写入数据的第一部分，以及填充数据的第二部分， 第一部分和第二部分的大小等于第一数据块的大小。 然后将第二写入请求转发到与数据存储阵列相关联的物理层。