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：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：US20190129950A1

公开(公告)日：2019-05-02

申请号：US15796527

申请日：2017-10-27

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Shyamalendu Sarkar ,  Sri Satya Sudhanva Kambhammettu ,  Narayanan Ananthakrishnan Nellayi ,  Naveen B

IPC: G06F17/30 ,  G06F3/06

Abstract: In one example, a method may include receiving a write operation corresponding to a portion of a data chunk stored at a first storage location in a write-in-place file system. The write-in-place file system may include encoded data chunks and unencoded data chunks. The method may include determining whether the data chunk is an encoded data chunk based on metadata associated with the data chunk, modifying the data chunk based on the write operation, and selectively performing a redirect-on-write operation on the modified data chunk based on the determination.

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：US11119981B2

公开(公告)日：2021-09-14

申请号：US15796527

申请日：2017-10-27

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Shyamalendu Sarkar ,  Sri Satya Sudhanva Kambhammettu ,  Narayanan Ananthakrishnan Nellayi ,  Naveen B

IPC: G06F16/00 ,  G06F16/14 ,  G06F3/06 ,  G06F16/13 ,  G06F16/188

Abstract: In one example, a method may include receiving a write operation corresponding to a portion of a data chunk stored at a first storage location in a write-in-place file system. The write-in-place file system may include encoded data chunks and unencoded data chunks. The method may include determining whether the data chunk is an encoded data chunk based on metadata associated with the data chunk, modifying the data chunk based on the write operation, and selectively performing a redirect-on-write operation on the modified data chunk based on the determination.