公开(公告)号：WO2018175144A1

公开(公告)日：2018-09-27

申请号：PCT/US2018/022140

申请日：2018-03-13

Applicant: NETAPP, INC.

Inventor： SUBRAMANIAN, Ananthan ,  VENKETARAMAN, Sriram ,  DRONAMRAJU, Ravikanth ,  GUPTA, Mohit

IPC: G06F3/06

Abstract: Techniques are provided for providing a storage abstraction layer for a composite aggregate architecture. A storage abstraction layer is utilized as an indirection layer between a file system and a storage environment. The storage abstraction layer obtains characteristic of a plurality of storage providers that provide access to heterogeneous types of storage of the storage environment (e.g., solid state storage, high availability storage, object storage, hard disk drive storage, etc.). The storage abstraction layer generates storage bins to manage storage of each storage provider. The storage abstraction layer generates a storage aggregate from the heterogeneous types of storage as a single storage container. The storage aggregate is exposed to the file system as the single storage container that abstracts away from the file system the management and physical storage details of data of the storage aggregate.

公开(公告)号：WO2015026662A1

公开(公告)日：2015-02-26

申请号：PCT/US2014/051304

申请日：2014-08-15

Applicant: NETAPP, INC.

Inventor： GUPTA, Mohit ,  PERIYAGARAM, Subramaniam ,  FANG, Vania ,  ENGLISH, Robert ,  KESAVAN, Ram

IPC: G06F3/06

CPC classification number: G06F3/0685 ,  G06F3/061 ,  G06F3/0619 ,  G06F3/0643 ,  G06F3/065 ,  G06F3/067

Abstract: Systems, methods, and computer program products implementing hybrid file structures for data storage are provided. One embodiment of a method performed in a computer-based storage system includes writing a file as data blocks in an array of storage devices. The method includes associating the data blocks with metadata related to at least one location in the array of storage devices for later access to the data blocks. The file is represented as a hierarchical data structure having a plurality of nodes. A first portion of nodes has a first span type, and a second portion of nodes has a second span type. The data structure includes a buftree. The first span type includes a fixed-span type. The second span type includes a variable-span type.

Abstract translation: 提供了实现用于数据存储的混合文件结构的系统，方法和计算机程序产品。 在基于计算机的存储系统中执行的方法的一个实施例包括将文件作为数据块写入存储设备的阵列中。 该方法包括将数据块与存储设备阵列中的至少一个位置相关的元数据相关联，以便稍后访问数据块。 该文件被表示为具有多个节点的分层数据结构。 节点的第一部分具有第一跨度类型，节点的第二部分具有第二跨度类型。 数据结构包括一个buftree。 第一种跨度类型包括固定跨度类型。 第二种跨度类型包括可变跨度类型。

公开(公告)号：WO2018165502A1

公开(公告)日：2018-09-13

申请号：PCT/US2018/021659

申请日：2018-03-09

Applicant: NETAPP, INC.

Inventor： DRONAMRAJU, Ravikanth ,  STERLING, Kyle, Diggs ,  BHATTACHARJEE, Mrinal, K. ,  GUPTA, Mohit

IPC: G06F3/06

Abstract: Techniques are provided for selectively storing data into allocation areas using streams. A set of allocation areas (e.g., ranges of block numbers such as virtual block numbers) are defined for a storage device. Data having particular characteristics (e.g., user data, metadata, hot data, cold data, randomly accessed data, sequentially accessed data, etc.) will be sent to the storage device for selective storage in corresponding allocation areas. For example, when a file system receives a write stream of hot data, the hot data may be assigned to a stream. The stream will be tagged using a stream identifier that is used as an indicator to the storage device to process data of the stream using an allocation area defined for hot data. In this way, data having different characteristics will be stored/confined within particular allocation areas of the storage device to reduce fragmentation and write amplification.

公开(公告)号：EP3593238A1

公开(公告)日：2020-01-15

申请号：EP18714658.4

申请日：2018-03-09

Applicant: NetApp, Inc.

Inventor： DRONAMRAJU, Ravikanth ,  STERLING, Kyle Diggs ,  BHATTACHARJEE, Mrinal K. ,  GUPTA, Mohit

IPC: G06F3/06

公开(公告)号：EP3602267A1

公开(公告)日：2020-02-05

申请号：EP18715172.5

申请日：2018-03-13

Applicant: NetApp, Inc.

Inventor： SUBRAMANIAN, Ananthan ,  VENKETARAMAN, Sriram ,  DRONAMRAJU, Ravikanth ,  GUPTA, Mohit

IPC: G06F3/06