公开(公告)号：US12073091B2

公开(公告)日：2024-08-27

申请号：US18160371

申请日：2023-01-27

Applicant: NetApp Inc.

Inventor： Akhil Kaushik ,  Ripulkumar Hemantbhai Patel ,  Vrishali Dattatray Hajare ,  Andrew Eric Dunn ,  Rithin Kumar Shetty

IPC: G06F11/14 ,  G06F3/06 ,  G06F11/20

CPC classification number: G06F3/0619 ,  G06F3/065 ,  G06F3/0683 ,  G06F11/1451 ,  G06F11/1469 ,  G06F11/20 ,  G06F2201/805 ,  G06F2201/84

Abstract: One or more techniques and/or computing devices are provided for resynchronization. For example, a request may be received to create pseudo snapshots of a first consistency group, hosted by a first storage controller, and a second consistency group, hosted by a second storage controller, having a synchronous replication relationship with the first consistency group. Incoming client write requests are logged within an intercept tracking log at the first storage controller. After a first drain without hold of incoming write requests is performed, a first pseudo common snapshot of the second consistency group is created. After a second drain without hold of incoming write operations is performed, a second pseudo common snapshot of the first consistency group and the intercept tracking log is created. The pseudo snapshots and the intercept tracking log (e.g., indicating a delta between the pseudo snapshots) are used to resynchronize the first and second consistency groups.

公开(公告)号：US20240273064A1

公开(公告)日：2024-08-15

申请号：US18641602

申请日：2024-04-22

Applicant: NetApp, Inc.

Inventor： Ajay Pratap Singh Kushwah ,  Ling Zheng ,  Sharad Jain

IPC: G06F16/11 ,  G06F11/14 ,  G06F12/121 ,  G06F16/13 ,  H04L67/568

CPC classification number: G06F16/128 ,  G06F11/1448 ,  G06F11/1464 ,  G06F12/121 ,  G06F16/13 ,  H04L67/568

Abstract: With a forever incremental snapshot configuration and a typical caching policy (e.g., least recently used), a storage appliance may evict stable data blocks of an older snapshot, perhaps unchanged data blocks of the snapshot baseline. If stable data blocks have been evicted, restore of a recent snapshot will suffer the time penalty of downloading the stable blocks for restoring the recent snapshot. Creating synthetic baseline snapshots and refreshing eviction data of stable data blocks can avoid eviction of stable data blocks and reduce the risk of violating a recovery time objective.

公开(公告)号：US20240264998A1

公开(公告)日：2024-08-08

申请号：US18441163

申请日：2024-02-14

Applicant: NetApp, Inc.

Inventor： Wesley R. Witte ,  Youyuan Wu

IPC: G06F16/22 ,  G06F16/2453

CPC classification number: G06F16/2291 ,  G06F16/2453 ,  G06F2201/80

Abstract: Systems, methods, and machine-readable media are disclosed for isolating and reporting a volume placement error for a request to place a volume on a storage platform. A volume placement service requests information from a database using an optimized database query to determine an optimal location to place a new volume. The database returns no results. The volume placement service deconstructs the optimized database query to extract a plurality of queries. The volume placement service iterates over the plurality queries, combining queries in each iteration, to determine a cause for the database to return no results. The volume placement service determines based on the results of each iterative database request a cause the database to return an empty result. The volume placement service provides an indication of the cause for returning an empty result.

公开(公告)号：US20240259360A1

公开(公告)日：2024-08-01

申请号：US18630360

申请日：2024-04-09

Applicant: NetApp, Inc.

Inventor： Jin Zhang ,  Surajpal S. Sandhu ,  Matthew Martin Houston

IPC: H04L9/40 ,  H04L67/148

CPC classification number: H04L63/0485 ,  H04L63/061 ,  H04L63/20 ,  H04L67/148

Abstract: A system is described. The system includes a processing resource and a non-transitory computer-readable medium, coupled to the processing resource, having stored therein instructions that when executed by the processing resource cause the processing resource to detect an unrecognized Internet Protocol Security (IPsec) packet associated with an IP address at a first node within a cluster, retrieve one or more selector fields from the IPsec packet, query of a security policy database to determine whether a destination IP address included in the one or more retrieved selector fields matches one or more matching outbound IPsec policies associated with a destination IP address, determine whether a matching outbound IPsec policy includes an IPsec policy associated with the destination address entry and establish the first IPsec SA communication session between the first node and the client based on the outbound IPsec policy.

公开(公告)号：US12032446B2

公开(公告)日：2024-07-09

申请号：US17520747

申请日：2021-11-08

Applicant: NetApp Inc.

Inventor： Deepak Thomas ,  Dan Sarisky ,  Nagender Somavarapu ,  Santosh Lolayekar

IPC: G06F3/06 ,  G06F11/14

CPC classification number: G06F11/1446 ,  G06F3/0664 ,  G06F3/0665 ,  G06F11/1435 ,  G06F2201/815

Abstract: Recovery support techniques for storage virtualization environments are described. In one embodiment, for example, a method may be performed that comprises defining, by processing circuitry, a storage container comprising one or more logical storage volumes of a logical storage array of a storage system, associating the storage container with a virtual volume (vvol) datastore, identifying metadata for a vvol of the vvol datastore, and writing the metadata for the vvol to the storage system. Other embodiments are described and claimed.

公开(公告)号：US20240211158A1

公开(公告)日：2024-06-27

申请号：US18146530

申请日：2022-12-27

Applicant: NetApp, Inc.

Inventor： Mrinal K. Bhattacharjee ,  Sreenath Korrakuti ,  Sateesh Kumar Pola

IPC: G06F3/06

CPC classification number: G06F3/0647 ,  G06F3/0604 ,  G06F3/065 ,  G06F3/0683

Abstract: Systems and methods for reducing the provisioned storage capacity of a disk or aggregate of disks of a storage appliance while the storage appliance continues to serve clients are provided. According to one embodiment, the size of the aggregate may be reduced by shrinking the file system of the storage appliance and removing a selected disk from the aggregate. When an identified shrink region is less than the entire addressable PVBN space of the selected disk, the file system may be shrunk by relocating valid data from the shrink region of the selected disk to one or more regions outside of the shrink region, mirroring data of the selected disk from outside of the shrink region to a smaller disk added to the aggregate, and then removing the selected disk after the mirrors are in sync, thereby reducing the provisioned storage capacity of the aggregate by the difference in size between the selected disk and the smaller disk.

公开(公告)号：US12019873B2

公开(公告)日：2024-06-25

申请号：US17875849

申请日：2022-07-28

Applicant: NetApp, Inc.

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

IPC: G06F3/06

CPC classification number: G06F3/0611 ,  G06F3/0614 ,  G06F3/0655 ,  G06F3/067

Abstract: Multi-site distributed storage systems and computer-implemented methods are described for improving a resumption time for processing of input/output (I/O) operations during an automatic unplanned failover (AUFO). A first storage cluster includes a first set of consistency groups (CGs) and a second storage cluster includes a second mirrored set of CGs. A computer-implemented method includes prefetching, with a user space of the second storage cluster, configuration information from a replicated database prior to starting the AUFO workflow, sending the configuration information to a kernel space of the second storage cluster on a per CG level while queuing the AUFO workflow, and determining if any in progress workflows conflict with the AUFO workflow.

公开(公告)号：US12019524B2

公开(公告)日：2024-06-25

申请号：US18297671

申请日：2023-04-10

Applicant: NetApp Inc.

Inventor： Sharankumar Yelheri ,  Atul Ramesh Pandit ,  Tijin George

IPC: G06F12/00 ,  G06F11/14 ,  G06F16/11

CPC classification number: G06F11/1464 ,  G06F11/1451 ,  G06F11/1469 ,  G06F11/1484 ,  G06F16/128 ,  G06F2201/84

Abstract: Techniques are provided for implementing data requests associated with objects of an object store. A data connector component may be instantiated as a container for processing data requests associated with backup data stored within objects of an object store. The data connector component may evaluate the object store to identify snapshots stored as the backup data within the objects of the object store according to an object format. The data connector component may provide a client device with access to backup data of the snapshots.

公开(公告)号：US20240201884A1

公开(公告)日：2024-06-20

申请号：US18588112

申请日：2024-02-27

Applicant: NetApp, Inc.

Inventor： Rohit Shankar SINGH ,  Douglas P. Doucette ,  Abhijeet Prakash Gole ,  Sushilkumar Gangadharan

IPC: G06F3/06

CPC classification number: G06F3/0644 ,  G06F3/0604 ,  G06F3/0659 ,  G06F3/0689

Abstract: The disclosed technology relates determining a first subset of a plurality drives having a first zone size and a second subset of the plurality of drives having a second zone size different from the first zone size, within a redundant array of independent disks (RAID) group. A prevailing zone size between the first zone size and the second zone size is determined. One or more logical zones within the determined first subset of the plurality of drives and the determined second subset of the plurality of drives for a received input-output operation is reserved based on the determined prevailing zone size. The received input-output operation is completed within the reserved one or more logical zones within the determined first subset of the plurality of drives and the determined second subset of the plurality of drives

公开(公告)号：US12014056B2

公开(公告)日：2024-06-18

申请号：US17893511

申请日：2022-08-23

Applicant: NetApp Inc.

Inventor： Bharadwaj Vellore Ramesh ,  Daniel McCarthy ,  Christopher Lee Cason ,  Ananthan Subramanian

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/064 ,  G06F3/067

Abstract: Techniques are provided for repairing a primary slice file, affected by a storage device error, by using one or more dead replica slice files. The primary slice file is used by a node of a distributed storage architecture as an indirection layer between storage containers (e.g., a volume or LUN) and physical storage where data is physically stored. To improve resiliency of the distributed storage architecture, changes to the primary slice file are replicated to replica slice files hosted by other nodes. If a replica slice file falls out of sync with the primary slice file, then the replica slice file is considered dead (out of sync) and could potentially comprise stale data. If a storage device error affects blocks storing data of the primary slice file, then the techniques provided herein can repair the primary slice file using non-stale data from one or more dead replica slice files.