公开(公告)号：US11803525B2

公开(公告)日：2023-10-31

申请号：US17302021

申请日：2021-04-21

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Anoop Kumar Raveendran ,  Sri Satya Sudhanva Kambhammettu ,  Narayanan Ananthakrishnan Nellayi ,  Subhakar Vipparti

IPC: G06F16/00 ,  G06F16/21 ,  G06F16/22 ,  G06F16/215 ,  G06F16/28

CPC classification number: G06F16/214 ,  G06F16/215 ,  G06F16/2237 ,  G06F16/2246 ,  G06F16/285

Abstract: Example implementation relates to a method for managing movement of set of entities associated with sampled data units in a cluster of nodes of a distributed storage system. A database is maintained for sampled data units received from the cluster of nodes. The method includes maintaining lineage information for the set of entities associated with the sampled data units received from each node. Based on the lineage information of a source node, a data set for migration is determined.

公开(公告)号：US11620270B2

公开(公告)日：2023-04-04

申请号：US17302019

申请日：2021-04-21

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Sri Satya Sudhanva Kambhammettu ,  Narayanan Ananthakrishnan Nellayi ,  Anoop Kumar Raveendran ,  Subhakar Vipparti

IPC: G06F16/22 ,  G06F16/2453 ,  G06F16/23 ,  G06F16/21

Abstract: Example implementation relates to generating a database for a set of entities associated with sampled data units of a storage system. A first data structure in the database maps, in a bit vector, each entity with a sampled signature of a set of sampled signatures. The set of sampled signatures are associated with the sampled data units. The set of entities associated with the set of sampled signatures are managed using the first data structure.

公开(公告)号：US11734232B2

公开(公告)日：2023-08-22

申请号：US16509470

申请日：2019-07-11

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Priya Pappanaickenpalayam Muthuswamy ,  Rajkumar Kannan ,  Anoop Kumar Raveendran

IPC: G06F16/182 ,  G06F16/11 ,  G06F16/27

CPC classification number: G06F16/184 ,  G06F16/113 ,  G06F16/275

Abstract: Example implementations relate to identifying file system objects of a file system for generating an initial baseline of the file system. In an example, an inode table of the file system is retrieved. Modes included in the inode table correspond respectively to file system objects of the file system. Attributes, including an object identifier and a time attribute, are extracted from each of the inodes of the inode table. A compilation of the object identifiers from the extracted attributes are provided to a service that generates the initial baseline of the file system using the compilation.

公开(公告)号：US10922276B2

公开(公告)日：2021-02-16

申请号：US15521370

申请日：2015-01-15

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Santigopal Mondal ,  Anand Andaneppa Ganjihal ,  Anoop Kumar Raveendran ,  Sandya Srivilliputtur Mannarswamy

IPC: G06F16/00 ,  G06F16/17 ,  G06F16/13 ,  G06F16/182

Abstract: Storage space may be allocated from a non-reserved zone of a file system when the file system is not undergoing an online file system check. When the file system is undergoing an online file system check, storage space is allocated from a soft-reserved zone.

公开(公告)号：US20220100716A1

公开(公告)日：2022-03-31

申请号：US17302021

申请日：2021-04-21

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Anoop Kumar Raveendran ,  Sri Satya Sudhanva Kambhammettu ,  Narayanan Ananthakrishnan Nellayi ,  Subhakar Vipparti

IPC: G06F16/21 ,  G06F16/22 ,  G06F16/28 ,  G06F16/215

Abstract: Example implementation relates to a method for managing movement of set of entities associated with sampled data units in a cluster of nodes of a distributed storage system. A database is maintained for sampled data units received from the cluster of nodes. The method includes maintaining lineage information for the set of entities associated with the sampled data units received from each node. Based on the lineage information of a source node, a data set for migration is determined.

公开(公告)号：US20210326302A1

公开(公告)日：2021-10-21

申请号：US17249302

申请日：2021-02-26

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Anoop Kumar Raveendran ,  Hemanth Kancharla ,  Kiran Srinivas

IPC: G06F16/16 ,  G06F16/14 ,  G06F16/18 ,  G06F16/11

Abstract: Some examples relate to determine a shared block tracker at each snapshot of ‘n’ snapshots. The shared block tracker may represent a quantity of blocks that are shared among two or more snapshots. In a pth shared block tracker, the block count mapped to a rth snapshot identifier of a rth snapshot may indicate how many of the blocks are shared among the pth snapshot, the rth snapshot and any intervening snapshot, where p and r, individually, indicate a snapshot in the ‘n’ snapshots, 1≤p≤n and 1≤r

公开(公告)号：US20220035784A1

公开(公告)日：2022-02-03

申请号：US17302019

申请日：2021-04-21

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Sri Satya Sudhanva Kambhammettu ,  Narayanan Ananthakrishnan Nellayi ,  Anoop Kumar Raveendran ,  Subhakar Vipparti

IPC: G06F16/22 ,  G06F16/21 ,  G06F16/23 ,  G06F16/2453

Abstract: Example implementation relates to generating a database for a set of entities associated with sampled data units of a storage system. A first data structure in the database maps, in a bit vector, each entity with a sampled signature of a set of sampled signatures. The set of sampled signatures are associated with the sampled data units. The set of entities associated with the set of sampled signatures are managed using the first data structure.

公开(公告)号：US10606822B2

公开(公告)日：2020-03-31

申请号：US15521986

申请日：2015-01-15

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Anand A Ganjihal ,  Santigopal Mondal ,  Anoop Kumar Raveendran ,  Sandya Srivilliputtur Mannarswamy

IPC: G06F16/22 ,  G06F16/23 ,  G06F16/11

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.

公开(公告)号：US20170316027A1

公开(公告)日：2017-11-02

申请号：US15521370

申请日：2015-01-15

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Santigopal Mondal ,  Anand Andaneppa Ganjihal ,  Anoop Kumar Raveendran ,  Sandya Srivilliputtur Mannarswamy

IPC: G06F17/30

CPC classification number: G06F16/1727 ,  G06F16/13 ,  G06F16/134 ,  G06F16/182

Abstract: Storage space may be allocated from a non-reserved zone of a file system when the file system is not undergoing an online file system check. When the file system is undergoing an online file system check, storage space is allocated from a soft-reserved zone.

公开(公告)号：US20170161294A1

公开(公告)日：2017-06-08

申请号：US15327421

申请日：2014-09-18

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Anand Ganjihal ,  Anoop Kumar Raveendran ,  Santigopal Mondal ,  Sandya Srivilliputtur Mannarswamy

IPC: G06F17/30

CPC classification number: G06F16/1727 ,  G06F16/13 ,  G06F16/1724 ,  G06F16/1734

Abstract: Some examples described herein relate to storing file directories on a storage device. In an example, a portion of available free space on a storage device may be assigned for storing file directories only. Upon receipt of a request for allocating storage space to a file directory on the storage device, the assigned portion may be utilized to store the file directory.