公开(公告)号：US12079242B2

公开(公告)日：2024-09-03

申请号：US18047774

申请日：2022-10-19

Applicant: NetApp, Inc.

Inventor： Arindam Banerjee ,  Daniel McCarthy ,  Christopher Cason ,  Ananthan Subramanian

IPC: G06F17/00 ,  G06F16/27

CPC classification number: G06F16/27

Abstract: Systems and methods for scaling application and/or storage system functions of a distributed storage system based on a heterogeneous resource pool are provided. According to one embodiment, the distributed storage system has a composable, service-based architecture that provides scalability, resiliency, and load balancing. The distributed storage system includes a cluster of nodes each potentially having differing capabilities in terms of processing, memory, and/or storage. The distributed storage system takes advantage of different types of nodes by selectively instating appropriate services (e.g., file and volume services and/or block and storage management services) on the nodes based on their respective capabilities. Furthermore, disaggregation of these services, facilitated by interposing a frictionless layer (e.g., in the form of one or more globally accessible logical disks) therebetween, enables independent and on-demand scaling of either or both of application and storage system functions within the cluster while making use of the heterogeneous resource pool.

公开(公告)号：US20230367517A1

公开(公告)日：2023-11-16

申请号：US18359188

申请日：2023-07-26

Applicant: NetApp, Inc.

Inventor： Ravikanth Dronamraju ,  Arindam Banerjee

IPC: G06F3/06 ,  G06F16/182 ,  G06F16/188

CPC classification number: G06F3/0659 ,  G06F3/0664 ,  G06F3/067 ,  G06F3/064 ,  G06F16/182 ,  G06F16/188 ,  G06F3/0604 ,  G06F3/0644

Abstract: Systems and methods for managing data storage using a distributed file system are provided. In one example, a relocation event is detected that indicates a relocation is to be initialized. The relocation is initialized by identifying a destination node of a distributed storage system for the relocation of a set of objects in a cluster database, including a logical block device, a corresponding logical aggregate, and a corresponding file system volume. A state of each of the set of objects is changed to offline. The set of objects are then relocated from an originating node of the distributed storage system to the destination node in which the corresponding logical aggregate is relocated after the logical block device and the corresponding file system volume is relocated after the logical aggregate. Finally, the state of each of the set of objects is changed to online.

公开(公告)号：US20220413765A1

公开(公告)日：2022-12-29

申请号：US17721144

申请日：2022-04-14

Applicant: NetApp Inc.

Inventor： Nagaraj S. Lalsangi ,  Arindam Banerjee ,  Timothy K. Emami

IPC: G06F3/06

Abstract: Techniques are provided for hosting a key value store. A persistent storage backend is used to centrally host a key value store as disaggregated storage shared with a plurality of clients over a network fabric. A network storage appliance is connected to the plurality of clients over the network fabric, and is configured with a key value store interface. The key value store interface is configured to receive a key value command from a client. The key value store interface parses the key value command to identify a translation layer binding for a key value store targeted by the key value command. The key value store interface translates the key value command into a key value operation using the translation layer binding, and executes the key value operation upon the key value store.

公开(公告)号：US11182202B2

公开(公告)日：2021-11-23

申请号：US16653079

申请日：2019-10-15

Applicant: NetApp, Inc.

Inventor： Kent Prosch ,  Matthew Weber ,  Arindam Banerjee ,  Ben McDavitt

IPC: G06F9/46 ,  G06F9/48 ,  G06F9/50 ,  G06F15/16

Abstract: Methods, non-transitory machine-readable media, and computing devices for transitioning tasks and interrupt service routines are provided. An example method includes processing, by a plurality of processor cores of a storage controller, tasks and interrupt service routines. A performance statistic is determined corresponding to the plurality of processor cores. Based on detecting that the performance statistic passes a threshold, a number of the plurality of processor cores that are assigned to the tasks and the interrupt service routines are reduced.

公开(公告)号：US10826848B2

公开(公告)日：2020-11-03

申请号：US15497744

申请日：2017-04-26

Applicant: NETAPP, INC.

Inventor： Charles E. Nichols ,  Scott Terrill ,  Don Humlicek ,  Arindam Banerjee ,  Yulu Diao ,  Anthony D. Gitchell

IPC: G06F9/46 ,  H04L12/861 ,  G06F9/50 ,  G06F12/0842 ,  G06F9/48

Abstract: A system for dynamically configuring and scheduling input/output (I/O) workloads among processing cores is disclosed. Resources for an application that are related to each other and/or not multicore safe are grouped together into work nodes. When these need to be executed, the work nodes are added to a global queue that is accessible by all of the processing cores. Any processing core that becomes available can pull and process the next available work node through to completion, so that the work associated with that work node software object is all completed by the same core, without requiring additional protections for resources that are not multicore safe. Indexes track the location of both the next work node in the global queue for processing and the next location in the global queue for new work nodes to be added for subsequent processing.

公开(公告)号：US10579540B2

公开(公告)日：2020-03-03

申请号：US15010160

申请日：2016-01-29

Applicant: NetApp, Inc.

Inventor： Brian D. McKean ,  Arindam Banerjee ,  Kevin Kidney

IPC: G06F12/1009 ,  G06F3/06

Abstract: A system and method for improving storage system operation is disclosed. A storage system includes a first tier with high-performance redundancy and a second tier with capacity efficient redundancy. The first tier and the second tier are built from the same storage devices in a storage pool so each storage device includes both the first and second tiers. The storage system stores write data initially to the first tier. When demand for the data falls below a threshold, the storage system migrates the write data to the second tier. This is done by changing the mapping of underlying physical locations on the storage devices where the write data is stored so that the underlying physical locations are logically associated with the second tier instead of the first tier. After remapping, the storage system also computes parity information for the migrated write data and stores it in the second tier.

公开(公告)号：US20200042347A1

公开(公告)日：2020-02-06

申请号：US16653079

申请日：2019-10-15

Applicant: NetApp, Inc.

Inventor： Kent Prosch ,  Matthew Weber ,  Arindam Banerjee ,  Ben McDavitt

IPC: G06F9/48 ,  G06F9/50 ,  G06F15/16

Abstract: Methods, non-transitory machine-readable media, and computing devices for transitioning tasks and interrupt service routines are provided. An example method includes processing, by a plurality of processor cores of a storage controller, tasks and interrupt service routines. A performance statistic is determined corresponding to the plurality of processor cores. Based on detecting that the performance statistic passes a threshold, a number of the plurality of processor cores that are assigned to the tasks and the interrupt service routines are reduced.

公开(公告)号：US10481835B2

公开(公告)日：2019-11-19

申请号：US14510829

申请日：2014-10-09

Applicant: NETAPP, INC.

Inventor： Arindam Banerjee ,  Donald R. Humlicek

IPC: G06F3/06 ,  G06F12/0868

Abstract: Methods and systems for dynamic hashing in cache sub-systems are provided. The method includes analyzing a plurality of input/output (I/O) requests for determining a pattern indicating if the I/O requests are random or sequential; and using the pattern for dynamically changing a first input to a second input for computing a hash index value by a hashing function that is used to index into a hashing data structure to look up a cache block to cache an I/O request to read or write data, where for random I/O requests, a segment size is the first input to a hashing function to compute a first hash index value and for sequential I/O requests, a stripe size is used as the second input for computing a second hash index value.

公开(公告)号：US10459759B2

公开(公告)日：2019-10-29

申请号：US15890481

申请日：2018-02-07

Applicant: NetApp, Inc.

Inventor： Kent Prosch ,  Matthew Weber ,  Arindam Banerjee ,  Ben McDavitt

IPC: G06F9/46 ,  G06F9/48 ,  G06F9/50 ,  G06F15/16

Abstract: Methods, non-transitory machine-readable media, and computing devices for transitioning tasks and interrupt service routines are provided. An example method includes processing, by a plurality of processor cores of a storage controller, tasks and interrupt service routines. A performance statistic is determined corresponding to the plurality of processor cores. Based on detecting that the performance statistic passes a threshold, a number of the plurality of processor cores that are assigned to the tasks and the interrupt service routines are reduced.

公开(公告)号：US20240143233A1

公开(公告)日：2024-05-02

申请号：US18406515

申请日：2024-01-08

Applicant: NetApp, Inc.

Inventor： Ravikanth Dronamraju ,  Arindam Banerjee

IPC: G06F3/06 ,  G06F16/182 ,  G06F16/188

CPC classification number: G06F3/0659 ,  G06F3/0604 ,  G06F3/064 ,  G06F3/0644 ,  G06F3/0664 ,  G06F3/067 ,  G06F16/182 ,  G06F16/188

Abstract: A method for managing data storage using a distributed file system. A file system volume associated with a write request received at a data management subsystem is identified. A logical block device associated with the file system volume is identified. A plurality of data blocks is formed based on the write request. The plurality of data blocks is distributed across a plurality of node block stores in a distributed block layer of a storage management subsystem of the distributed file system. Each of the plurality of node block stores corresponds to a different node of a plurality of nodes in the distributed storage system. The storage management subsystem operates separately from but in communication with the data management subsystem.