公开(公告)号：WO2016069036A1

公开(公告)日：2016-05-06

申请号：PCT/US2015/011586

申请日：2015-01-15

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： GANJIHAL, Anand A ,  MONDAL, Santigopal ,  R, Anoop Kumar ,  SRIVILLIPUTTUR MANNARSWAMY, Sandya

IPC: G06F17/30

CPC classification number: G06F17/30365 ,  G06F17/30073 ,  G06F17/30321

Abstract: Dynamic updating of metadata associated with a file system is described herein. In accordance with an example, the updating includes creating a shadow file system metadata (FSM) index map in a shadow data block. The shadow data block is associated with a metadata storage of the file system and the metadata storage stores metadata files associated with the file system. The shadow FSM index map is associated with the metadata storage through an index map of the metadata storage, the index map being indicative of the metadata files in the metadata storage. The shadow FSM index map is updated to dynamically update the metadata associated with the file system, in the metadata storage.

Abstract translation: 本文描述了与文件系统相关联的元数据的动态更新。 根据示例，更新包括在阴影数据块中创建影子文件系统元数据（FSM）索引映射。 阴影数据块与文件系统的元数据存储相关联，并且元数据存储存储与文件系统相关联的元数据文件。 阴影FSM索引映射通过元数据存储的索引映射与元数据存储相关联，索引映射表示元数据存储中的元数据文件。 更新影子FSM索引映射，以在元数据存储中动态更新与文件系统相关联的元数据。

公开(公告)号：WO2016073019A1

公开(公告)日：2016-05-12

申请号：PCT/US2015/010238

申请日：2015-01-06

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： CHAURASIA, Rajesh Kumar ,  DOVAL, Shruti ,  KUMAR, Ashutosh ,  N, Narayanan A ,  PANIGRAHY, Padmagandha ,  LYNDEM, Alban Kit ,  GANJIHAL, Anand A

IPC: G06F17/30

CPC classification number: G06F17/30194

Abstract: Systems and methods for generating a unique identifier for an object in a distributed file system. In accordance with an example, the generating includes determining whether a location identifier for creation of the object in the distributed file system is being reused. Based on the determining, it is ascertained whether each reuse identifier from a set of reuse identifiers available for allocation for the location identifier is assigned once. Based on the ascertaining, a reuse identifier is assigned to the object based on the ascertaining. Further, the unique identifier is generated for the object based on at least the location identifier and the reuse identifier.

Abstract translation: 用于在分布式文件系统中生成对象的唯一标识符的系统和方法。 根据示例，生成包括确定用于在分布式文件系统中创建对象的位置标识符是否被重用。 基于该确定，确定来自可用于位置标识符的分配的一组重用标识符中的每个重用标识符是否被分配一次。 基于确定，基于确定将重用标识符分配给对象。 此外，至少基于位置标识符和重用标识符，为对象生成唯一标识符。

公开(公告)号：WO2016069031A1

公开(公告)日：2016-05-06

申请号：PCT/US2014/070570

申请日：2014-12-16

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： M, Kishore Kumar ,  KRISHNASWAMY, Soundarajan ,  GANJIHAL, Anand A

IPC: G06F17/30

CPC classification number: G06F17/30091

Abstract: The present subject matter relates to managing a storage pool. In one example, the present subject matter includes identifying, from amongst a plurality of volumes, meta-data service class volumes and data service class volumes based on attributes of volumes. The present subject matter further includes storing a plurality of objects amongst volumes, such that meta-data of objects is stored on meta-data service class volumes and data of objects is stored on data service class volumes, where each object is one of a frequently accessed object and infrequently accessed object. Further, the present subject matter includes determining at least one data storage device, from amongst data storage devices having data service class volumes, such that the data service class volumes store data of infrequently accessed objects, from amongst the objects, and maintaining the at least one data storage device having the data service class volumes in a low power mode.

Abstract translation: 本主题涉及管理存储池。 在一个示例中，本主题包括基于卷的属性从多个卷中识别元数据服务类卷和数据服务类卷。 本主题还包括在卷之间存储多个对象，使得对象的元数据被存储在元数据服务类卷上，并且对象的数据被存储在数据服务类卷上，其中每个对象是频繁地 访问的对象和不常访问的对象。 此外，本主题包括从具有数据服务类卷的数据存储设备中确定至少一个数据存储设备，使得数据服务类卷从对象之间存储不经常访问的对象的数据，并且至少保持至少 一个具有低功率模式的数据服务类卷的数据存储设备。