公开(公告)号：US12014045B2

公开(公告)日：2024-06-18

申请号：US18057869

申请日：2022-11-22

Applicant: NetApp, Inc.

Inventor： Charles Randall ,  Alyssa Proulx

IPC: G06F3/06 ,  G06F11/30 ,  G06F11/32 ,  G06F11/34

CPC classification number: G06F3/0605 ,  G06F3/0608 ,  G06F3/0641 ,  G06F3/0683 ,  G06F11/3034 ,  G06F11/324 ,  G06F11/3409

Abstract: Systems and methods for sampling a set of block IDs to facilitate estimating an amount of data stored in a data set of a storage system having one or more characteristics are provided. According to an example, metadata (e.g., block headers and block IDs) may be maintained regarding multiple data blocks of the data set. When one or more metrics relating to the data set are desired, an efficiency set, representing a subset of the block IDs of the data set, may be created to facilitate efficient calculation of the metrics by sampling the block IDs of the data set. Finally, the metrics may be estimated based on the efficiency set by analyzing one or more of the metadata (e.g., block headers) and the data contained in the data blocks corresponding to the subset of the block IDs and extrapolating the metrics for the entirety of the data set.

公开(公告)号：US20240193149A1

公开(公告)日：2024-06-13

申请号：US18502287

申请日：2023-11-06

Applicant: NetApp Inc.

Inventor： Vijay Mohan Deshmukh ,  Atul Ramesh Pandit ,  Pawan Saxena

IPC: G06F16/23 ,  G06F16/245 ,  G06F16/27

CPC classification number: G06F16/2358 ,  G06F16/245 ,  G06F16/27

Abstract: Data is replicated on a backup node, where the granularity of the replication can be less than a full volume. A data consistency group comprising a subset of data for a volume is defined for a primary node. A set of differences for the data consistency group is sent to a backup node. The backup node creates change logs in response to receiving the set of differences. In response to receiving a request to access a file having data in the data consistency group, the backup node creates a clone of the file. The backup node determines whether an update to a data block of the file exists in the change logs. In response to determining that the update to the data block exists in the change logs, the backup node updates a copy of the data block for the cloned file with data in the change logs.

公开(公告)号：US20240176645A1

公开(公告)日：2024-05-30

申请号：US18527578

申请日：2023-12-04

Applicant: NetApp Inc.

Inventor： Vani Vully ,  Avishek Chowdhury ,  Balaji Ramani ,  Vasudev Mulchandani

IPC: G06F9/455 ,  G06F3/06 ,  G06F16/182 ,  G06F16/188

CPC classification number: G06F9/45558 ,  G06F3/0619 ,  G06F3/0647 ,  G06F3/067 ,  G06F16/183 ,  G06F16/188 ,  G06F2009/4557 ,  G06F2009/45579 ,  G06F2009/45595

Abstract: A volume rehost tool migrates a storage volume from a source virtual server within a distributed storage system to a destination storage server within the distributed storage system. The volume rehost tool can prevent client access to data on the volume through the source virtual server until the volume has been migrated to the destination virtual server. The tool identifies a set of storage objects associated with the volume, removes configuration information for the set of storage objects, and removes a volume record associated with the source virtual server for the volume. The tool can then create a new volume record associated with the destination virtual server, apply the configuration information for the set of storage objects to the destination virtual server, and allow client access to the data on the volume through the destination virtual server.

公开(公告)号：US11995209B2

公开(公告)日：2024-05-28

申请号：US17444167

申请日：2021-07-30

Applicant: NetApp, Inc.

Inventor： Sheli Sela

IPC: G06F21/62 ,  G06F16/13 ,  G06F16/28 ,  G06F40/205 ,  G06F40/40

CPC classification number: G06F21/6245 ,  G06F16/13 ,  G06F16/285 ,  G06F40/205 ,  G06F40/40

Abstract: Systems, methods, and machine-readable media are disclosed for detecting sensitive personal information in a file. An entity extractor may extract a set of terms and a set of person candidates from a sentence in a file. Each term of the set of terms belongs to a set of sensitive categories. For a verb in the sentence, a relationship builder may determine a relationship between the respective verb, a subject, and an object in the sentence, where the respective verb, the subject, or the object includes a term. An event detector may determine, based on the relationship, that the term relates to a person from the set of set of person candidates and to a sensitive category. The event detector may create an event specifying the term, the sensitive category, and the person in response to determining that the term relates to the person and to the sensitive category.

公开(公告)号：US11995041B2

公开(公告)日：2024-05-28

申请号：US18148705

申请日：2022-12-30

Applicant: NetApp, Inc.

Inventor： Akhil Kaushik ,  Krishna Murthy Chandraiah Setty Narasingarayanapeta ,  Dhruvil Shah ,  Omprakash Khandelwal

IPC: G06F16/178 ,  G06F16/11

CPC classification number: G06F16/178 ,  G06F16/128

Abstract: Multi-site distributed storage systems and computer-implemented methods are described for improving a resumption time of input/output (I/O) operations during a common snapshot process for storage objects. A computer-implemented method comprises performing a baseline transfer from at least one storage object of a first storage node to at least one replicated storage object of a second storage node, starting the common snapshot process including stop processing of I/O operations, performing a snapshot create operation on the primary storage site for the at least one storage object of the first storage node, resuming processing of I/O operations, and assigning a new universal unique identifier (UUID) to the at least one storage object of the second storage node after resuming processing of I/O operations with the new UUID to identify when file system contents are different than the baseline transfer.

公开(公告)号：US20240168673A1

公开(公告)日：2024-05-23

申请号：US18429911

申请日：2024-02-01

Applicant: NetApp, Inc.

Inventor： Anoop Vijayan ,  Akhil Kaushik ,  Sohan Shetty ,  Dhruvil Shah

IPC: G06F3/06

CPC classification number: G06F3/065 ,  G06F3/0604 ,  G06F3/0629 ,  G06F3/0641 ,  G06F3/067

Abstract: Systems and methods are described for efficiently processing events related to a relationship between a primary copy of data at a primary storage system and a mirror copy of the data at a cross-site secondary storage system of a multi-site distributed storage system. According to an example, a mediator agent that is configured on both primary and secondary storage systems provides coordination and serialization for various events generated in the relationship. The multi-site distributed storage system performs actions based on the event processing such as performing a failover operation from the primary storage system to the secondary storage system or resynchronizing the relationship to ensure application protection and availability.

公开(公告)号：US20240160374A1

公开(公告)日：2024-05-16

申请号：US18421649

申请日：2024-01-24

Applicant: NetApp, Inc.

Inventor： Krishna Murthy Chandraiah Setty Narasingarayanapeta ,  Akhil Kaushik ,  Nagaraj Lalsangi

IPC: G06F3/06

CPC classification number: G06F3/065 ,  G06F3/0613 ,  G06F3/0619 ,  G06F3/0631 ,  G06F3/0653 ,  G06F3/0659 ,  G06F3/067

Abstract: In one embodiment, a method comprises maintaining state information regarding a data synchronous replication status for a storage object of a primary storage cluster and a replicated storage object of a secondary storage cluster. The method includes temporarily disallowing input/output (I/O) operations for the storage object when the storage object of the primary storage cluster has a failure, which causes an internal state as out of sync for the storage object while maintaining an external state as in sync for external entities. The method performs persistent inflight tracking and reconciliation of I/O operations with a first Op log of the primary storage cluster and a second Op log of the secondary storage cluster and performs a resynchronization between the storage object and the replicated storage object based on the persistent inflight tracking and reconciliation of I/O operations.

公开(公告)号：US20240152408A1

公开(公告)日：2024-05-09

申请号：US18414539

申请日：2024-01-17

Applicant: NetApp, Inc.

Inventor： Austino Longo ,  James Wittig

IPC: G06F9/50 ,  G06F9/48

CPC classification number: G06F9/5083 ,  G06F9/4843 ,  G06F9/5044 ,  G06F2209/501

Abstract: Systems and methods for quality of service management are provided. According to one embodiment, a non-transitory computer-readable medium comprises instructions that when executed by the processing resource cause the processing resource to generate an inertial parameter that represents a resistance to moving a first volume from a first protection domain in a distributed storage system and rebalance, when the inertial parameter indicates the first volume should not be removed from the protection domain, a compute load between one or more available protection domains having capacity for additional volumes. The compute load includes one of a plurality of volumes other than the volume.

公开(公告)号：US11977461B2

公开(公告)日：2024-05-07

申请号：US18190172

申请日：2023-03-27

Applicant: NetApp Inc.

Inventor： Abhishek Naidu ,  Jose Mathew ,  Ling Zheng ,  Ravindra Kuramkote

IPC: G06F11/14 ,  G06F3/06 ,  G06F9/455

CPC classification number: G06F11/1469 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/0664 ,  G06F3/0673 ,  G06F9/45558 ,  G06F11/1451 ,  G06F11/1458 ,  G06F11/1464 ,  G06F11/1484 ,  G06F2009/45562 ,  G06F2009/45575 ,  G06F2201/80 ,  G06F2201/815 ,  G06F2201/84

Abstract: Techniques are provided for incrementally restoring a virtual machine hosted by a computing environment. In response to receiving an indication that the virtual machine is to be incrementally restored, a snapshot of the virtual machine may be created while the virtual machine is shut down into an off state. The snapshot is transmitted to a storage environment as a common snapshot. The snapshot and the common snapshot are common snapshots comprising a same representation of the virtual machine. The common snapshot and a prior snapshot of the virtual machine are evaluated to identify a data difference of the virtual machine between the common snapshot and the prior snapshot. An incremental restore is performed of the virtual machine by transmitting the data difference from the storage environment to the computing environment to restore the virtual machine to a state represented by the prior snapshot.

公开(公告)号：US11977448B2

公开(公告)日：2024-05-07

申请号：US17824131

申请日：2022-05-25

Applicant: NetApp Inc.

Inventor： Tijin George ,  Avanthi Rajan ,  Sanhita Praveen Dhavale

IPC: G06F11/00 ,  G06F11/14 ,  G06F16/11

CPC classification number: G06F11/1435 ,  G06F11/1469 ,  G06F16/128 ,  G06F2201/84

Abstract: Techniques are provided for restoring a directory from a snapshot of a volume backed up to an object store. The snapshot may be backed up from a node to the object store, such as a cloud computing environment. A user may want to restore the directory within the volume without having to restore the entire volume, which otherwise would waste computing resources, storage, network bandwidth, and time. Accordingly, the techniques provided herein are capable of restoring just the directory from the snapshot that is stored within the object store. Because snapshot data of the snapshot may be stored across multiple objects within the object store, certain objects are identified as comprising snapshot data (backup data) of the directory and content items within the directory. In this way, the snapshot data of the directory is restored from these objects to a restore directory at a restore target.