Rohit K Singh

US Patent:

20210019053, Jan 21, 2021

Filed:

Oct 6, 2020

Appl. No.:

17/064423

Inventors:

- Sunnyvale CA, US
Nikhil Mattankot - Sunnyvale CA, US
Deekshith Belchapada - Sullia Tq, IN
Blake H. Lewis - Los Altos CA, US
Subramaniam Periyagaram - Campbell CA, US
Satya Suresh Chouta Naga Veera - Cupertino CA, US
Rohit Singh - Cary NC, US
Rajesh Khandelwal - Sunnyvale CA, US
James Robert Morefield - Fuquay Varina NC, US

Assignee:

NETAPP, INC. - Sunnyvale CA

International Classification:

G06F 3/06
G06F 7/06
G06F 12/02

Abstract:

A first plurality of block identifiers is sorted based, at least in part, on a measure of spatial locality. A second plurality of block identifiers is sorted based, at least in part, on the measure of spatial locality. At least the first plurality of block identifiers and the second plurality of block identifiers are incrementally merged into a third plurality of block identifiers based, at least in part, on the measure of spatial locality. A block of data corresponding to metadata associated with a plurality of block identifiers of the third plurality of block identifiers is updated.

US Patent:

20200167084, May 28, 2020

Filed:

Jan 30, 2020

Appl. No.:

16/777346

Inventors:

- Sunnyvale CA, US
Ananthan Subramanian - San Ramon CA, US
Hiroshi Ishii - Sunnyvale CA, US
Abdul Basit - Morrisville NC, US
Joseph Brown - Raleigh NC, US
Rohit Singh - Sunnyvale CA, US

International Classification:

G06F 3/06

Abstract:

Methods, non-transitory computer readable media, and computing devices that execute a storage operation, without journaling the storage operation in a log, and withhold from a file system a list of freed inodes including an indication of an inode freed as a result of the execution of the storage operation. A consistency point operation is then initiated that retrieves storage operations logged as journal entries in the log and commits a result of each of the storage operations to data storage devices. A list of available inodes is updated based on the list of freed inodes, when the consistency point operation is determined to be complete. This technology reduces the number of storage operations that are required to be journaled to maintain consistency of a file system, thereby reducing the runtime resources required to facilitate the journaling and replay resource required to replay the storage operations following a recovery.

US Patent:

20190220195, Jul 18, 2019

Filed:

Mar 20, 2019

Appl. No.:

16/359088

Inventors:

- Sunnyvale CA, US
Nikhil Mattankot - Sunnyvale CA, US
Deekshith Belchapada - Sullia Tq, IN
Blake H. Lewis - Los Altos CA, US
Subramaniam Periyagaram - Campbell CA, US
Satya Suresh Chouta Naga Veera - Cupertino CA, US
Rohit Singh - Cary NC, US
Rajesh Khandelwal - Sunnyvale CA, US
James Robert Morefield - Fuquay Varina NC, US

Assignee:

NETAPP, INC. - Sunnyvale CA

International Classification:

G06F 3/06
G06F 12/02
G06F 7/06

Abstract:

A first plurality of block identifiers is sorted based, at least in part, on a measure of spatial locality. A second plurality of block identifiers is sorted based, at least in part, on the measure of spatial locality. At least the first plurality of block identifiers and the second plurality of block identifiers are incrementally merged into a third plurality of block identifiers based, at least in part, on the measure of spatial locality. A block of data corresponding to metadata associated with a plurality of block identifiers of the third plurality of block identifiers is updated.

US Patent:

20170344282, Nov 30, 2017

Filed:

May 27, 2016

Appl. No.:

15/167924

Inventors:

- Sunnyvale CA, US
Ananthan Subramanian - San Ramon CA, US
Hiroshi Ishii - Sunnyvale CA, US
Abdul Basit - Morrisville NC, US
Joseph Brown, JR. - Raleigh NC, US
Rohit Singh - Sunnyvale CA, US

International Classification:

G06F 3/06

Abstract:

A method, non-transitory computer readable medium and storage server computing device that determines when a generated storage operation corresponds with one of a set of predefined storage operations. The storage operation is executed and a result of the execution of the storage operation is withheld from a file system, when the determining indicates that the storage operation corresponds with one of the set of predefined storage operations. A determination is made when a consistency point operation has completed. The result of the execution of the storage operation is presented to the file system, when the determining indicates that a consistency point operation has completed. This technology reduces the number of storage operations that are required to be journaled to maintain consistency of a file system, thereby reducing the runtime resources required to facilitate the journaling and replay resource required to replay the storage operations in a journal following a recovery.

US Patent:

20160110120, Apr 21, 2016

Filed:

Oct 20, 2014

Appl. No.:

14/518088

Inventors:

- Sunnyvale CA, US
Nikhil Mattankot - Sunnyvale CA, US
Deekshith Belchapada - Sullia Tq, IN
Blake H. Lewis - Los Altos CA, US
Subramaniam Periyagaram - Campbell CA, US
Satya Suresh Chouta Naga Veera - Cupertino CA, US
Rohit Singh - Cary NC, US
Rajesh Khandelwal - Sunnyvale CA, US
James Robert Morefield - Fuquay Varina NC, US

International Classification:

G06F 3/06

Abstract:

A first plurality of block identifiers is sorted based, at least in part, on a measure of spatial locality. A second plurality of block identifiers is sorted based, at least in part, on the measure of spatial locality. At least the first plurality of block identifiers and the second plurality of block identifiers are incrementally merged into a third plurality of block identifiers based, at least in part, on the measure of spatial locality. A block of data corresponding to metadata associated with a plurality of block identifiers of the third plurality of block identifiers is updated.