公开(公告)号：US12117911B2

公开(公告)日：2024-10-15

申请号：US18069639

申请日：2022-12-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ji Ouyang ,  Huabing Yan

IPC: G06F11/20 ,  G06F11/00 ,  G06F16/901 ,  H04L67/06 ,  H04L67/1095 ,  H04L69/40 ,  G06F3/06

CPC classification number: G06F11/2069 ,  G06F11/00 ,  G06F11/2035 ,  G06F11/2082 ,  G06F11/2094 ,  G06F16/9017 ,  H04L67/06 ,  H04L67/1095 ,  H04L69/40 ,  G06F3/0646 ,  G06F3/0647 ,  G06F3/065 ,  G06F2201/84

Abstract: A remote data replication method and a storage system, where a production array sends a data replication request to a disaster recovery array. The data replication request includes an identifier of a source object and a data block corresponding to the source object. The data block is stored in physical space of a hard disk of the production array. The disaster recovery array receives the data replication request. The disaster recovery array creates a target object when the disaster recovery array does not include an object having a same identifier as the source object. An identifier of the target object is the same as the identifier of the source object, the disaster recovery array writes the data block into the physical space.

公开(公告)号：US12045462B2

公开(公告)日：2024-07-23

申请号：US17931628

申请日：2022-09-13

Applicant: Dell Products L.P.

Inventor： Sunil Kumar ,  Ravi Vijayakumar Chitloor

IPC: G06F3/06 ,  G06F11/20

CPC classification number: G06F3/0607 ,  G06F3/0635 ,  G06F3/067 ,  G06F11/2069

Abstract: One example method includes copying selected backup data from a secondary storage system to a provisioned primary storage volume, creating a snapshot of the primary storage volume, using the snapshot to create a thin clone volume, masking the thin clone volume, and mounting the thin clone volume, and recovering the backup data from the thin clone volume. The recovered backup data may be made available to a secondary workload that includes an enterprise application.

公开(公告)号：US20240176712A1

公开(公告)日：2024-05-30

申请号：US17994435

申请日：2022-11-28

Applicant: Dell Products L.P.

Inventor： Melissa Flynn ,  David Goncalves ,  Evan Jones ,  Brett Quinn

IPC: G06F11/20

CPC classification number: G06F11/2069 ,  G06F11/2076 ,  G06F2201/84

Abstract: Recovery of a primary image is facilitated by using non-consistent snapshots on a primary storage array and consistent snapshots on a secondary storage array to avoid the need to transmit entire secondary replicas from the secondary storage array to the primary storage array. Non-consistent snaps of the primary replicas are generated by the primary storage array. Consistent snaps of the secondary replicas are generated by the secondary storage array. The primary replicas are recovered by linking non-consistent snaps to primary staging volumes, linking consistent snaps to secondary staging volumes, synchronizing the primary and secondary staging volumes, and using the synchronized primary staging volumes to recover the primary replicas.

公开(公告)号：US11983083B2

公开(公告)日：2024-05-14

申请号：US17744875

申请日：2022-05-16

Applicant: NetApp Inc.

Inventor： Balaji Ramani ,  Harsha Sridhara ,  Rakshit Karnawat

IPC: G06F11/00 ,  G06F3/06 ,  G06F11/20 ,  G06F21/00 ,  G06F21/53 ,  G06F21/57 ,  G06F11/14

CPC classification number: G06F11/2069 ,  G06F3/0619 ,  G06F3/0647 ,  G06F3/065 ,  G06F3/0683 ,  G06F11/2071 ,  G06F11/2094 ,  G06F21/00 ,  G06F21/53 ,  G06F21/57 ,  G06F11/1456 ,  G06F2201/805

Abstract: One or more techniques and/or systems are provided for migrating a trust relationship. For example, a first storage cluster and a second storage cluster have a disaster recovery relationship where the second storage cluster provides failover client access to replicated data, replicated from the first storage cluster to the second storage cluster, in the event the first storage cluster fails. The first storage cluster may have a trust relationship with a third storage cluster, such that data is mirrored from a volume of the first storage cluster into a mirrored volume of the third storage cluster based upon the trust relationship. In the event the first storage cluster fails over to the second storage cluster due to a disaster at the first storage cluster, the trust relationship is migrated to be between the second storage cluster and the third storage cluster for non-disruptive mirroring of data to the mirrored volume.

公开(公告)号：US11977510B2

公开(公告)日：2024-05-07

申请号：US16925678

申请日：2020-07-10

Applicant: EMC IP Holding Company LLC

Inventor： Maneesh Singhal ,  Adarsh Pradhan Jmt ,  Jharanabala Nayak

IPC: G06F16/00 ,  G06F9/455 ,  G06F9/50 ,  G06F11/20 ,  G06F16/11

CPC classification number: G06F16/11 ,  G06F9/45558 ,  G06F9/5077 ,  G06F11/2069 ,  G06F2009/45579 ,  G06F2009/45595 ,  G06F2209/505

Abstract: For processing nodes of a cluster of a file server, the IO modules associated with the nodes may be required to be part of a same sub-network. A cluster may be configured to ensure that, for each cluster processing node, at least one other cluster processing node is associated with an IO module on a same sub-network as the IO module associated with the cluster processing node. The user may configure a file server to ensure that a primary node and one or more failover nodes of the file server are on a same sub-network. When configuring IO modules, physical ports having similar or same characteristics may be configured to be on a same sub-network. By doing so, and restricting nodes of a file server to being on a same sub-network, a relatively seamless failover between nodes of a file server may be achieved.

公开(公告)号：US11966307B2

公开(公告)日：2024-04-23

申请号：US17751410

申请日：2022-05-23

Applicant: NetApp, Inc.

Inventor： Murali Subramanian ,  Sohan Shetty ,  Akhil Kaushik

IPC: G06F11/20 ,  H04L67/1097

CPC classification number: G06F11/2069 ,  G06F11/2092 ,  G06F2201/85 ,  H04L67/1097

Abstract: Systems and methods for re-aligning data replication configuration of a cross-site storage solution after a failover are provided. According to one embodiment, after a failover, the new primary distributed storage system orchestrates flipping of the data replication configuration of a peered consistency group (CG) to reestablish zero RPO and zero RTO protections for the peered CG. The primary causes the secondary distributed storage system to perform an atomic database operation on its remote configuration database to (i) delete an existing source configuration that identifies the secondary as a source of data replication; and (ii) persist a new destination configuration identifying the secondary as a destination of data replication. Then, the primary performs an atomic database operation on its local configuration database to (i) delete an existing destination configuration identifying the primary as the destination; and (ii) persist a new source configuration identifying the distributed storage system as the source.

公开(公告)号：US11921597B2

公开(公告)日：2024-03-05

申请号：US17828900

申请日：2022-05-31

Applicant: NetApp Inc.

Inventor： Atul Ramesh Pandit ,  Vijay M. Deshmukh ,  Michael Lee Federwisch ,  Ling Zheng ,  Kiyoshi James Komatsu ,  Rachita Kothiyal

IPC: G06F11/00 ,  G06F11/20 ,  H04L67/1095 ,  H04L67/1097

CPC classification number: G06F11/2069 ,  G06F11/2071 ,  G06F11/2092 ,  H04L67/1095 ,  H04L67/1097 ,  G06F2201/805

Abstract: One or more techniques and/or computing devices are provided for cross-platform replication. For example, a replication relationship may be established between a first storage endpoint and a second storage endpoint, where at least one of the storage endpoints, such as the first storage endpoint, lacks or has incompatible functionality to perform and manage replication because the storage endpoints have different storage platforms that store data differently, use different control operations and interfaces, etc. Accordingly, replication destination workflow, replication source workflow, and/or a proxy representing the first storage endpoint may be implemented at the second storage endpoint comprising the replication functionality. In this way, replication, such as snapshot replication, may be implemented between the storage endpoints by the second storage endpoint using the replication destination workflow, the replication source workflow, and/or the proxy that either locally executes tasks or routes tasks to the first storage endpoint such as for data access.

公开(公告)号：US11892982B2

公开(公告)日：2024-02-06

申请号：US17505962

申请日：2021-10-20

Applicant: NetApp, Inc.

Inventor： Murali Subramanian ,  Sohan Shetty ,  Rakesh Bhargava ,  Akhil Kaushik

IPC: G06F16/17 ,  G06F16/23 ,  G06F3/06 ,  G06F11/20 ,  G06F16/178 ,  G06F16/172

CPC classification number: G06F16/178 ,  G06F3/065 ,  G06F3/0614 ,  G06F16/172 ,  G06F16/2365 ,  G06F11/2069 ,  G06F11/2092

Abstract: Systems and methods for reducing delays between the time at which a need for a resynchronization of data replication between a volume of a local CG and its peer volume of a remote CG is detected and the time at which the resynchronization is triggered (Reseed Time Period) are provided. According to an example, information indicative of the direction of data replication between the volume and the peer volume is maintained within a cache of a node. Responsive to a disruptive operation (e.g., relocation of the volume from an original node to a new node), the Reseed Time Period is lessened by proactively adding a passive cache entry to a cache within the new node at the time the CG relationship is created when the new node represents an HA partner of the original node and prior to the volume coming online when the new node represents a non-HA partner.

公开(公告)号：US11892918B2

公开(公告)日：2024-02-06

申请号：US17694964

申请日：2022-03-15

Applicant: Nutanix, Inc.

Inventor： Rohan Mohan Rayaraddi ,  Tarun Mehta

IPC: G06F11/20 ,  G06F11/14 ,  G06F8/65 ,  G06F9/50 ,  G06F11/07

CPC classification number: G06F11/2025 ,  G06F8/65 ,  G06F9/5038 ,  G06F11/0793 ,  G06F11/1433 ,  G06F11/1464 ,  G06F11/2069 ,  G06F11/2094 ,  G06F2201/80

Abstract: A patching operation on an availability group cluster having a plurality of nodes is disclosed. The patching operation is performed in a plurality of iterations, each including determining a current state of each of the plurality of nodes, selecting a next node based on the current state, and patching the next node. A secondary replica node is selected as the next node before the a primary replica node. Each secondary replica node is patched in accordance with a first priority, upon patching each of the secondary replica node, a failover target node for patching the primary replica node is selected, the failover target node is selected based on a second priority, and according to the second priority, a healthy synchronous secondary replica node of the plurality of nodes is selected as the failover target node before an unhealthy synchronous secondary replica node of the plurality of nodes.

公开(公告)号：US11886308B2

公开(公告)日：2024-01-30

申请号：US17698460

申请日：2022-03-18

Applicant: Pure Storage, Inc.

Inventor： Sankara Vaideeswaran ,  Robert Lee

IPC: G06F11/20 ,  G06F11/16 ,  G06F11/14 ,  G06F12/02 ,  G06F12/0875 ,  G06F12/0813

CPC classification number: G06F11/2069 ,  G06F11/1451 ,  G06F11/1469 ,  G06F11/1666 ,  G06F11/2056 ,  G06F11/2058 ,  G06F11/2089 ,  G06F11/2097 ,  G06F12/0246 ,  G06F12/0813 ,  G06F12/0875 ,  G06F2201/805 ,  G06F2201/84 ,  G06F2212/1032 ,  G06F2212/154 ,  G06F2212/284 ,  G06F2212/286 ,  G06F2212/452 ,  G06F2212/7208

Abstract: A storage system has priority queues for real time-class file system messaging and backup-class file system messaging. The storage system includes servers, coupled as a storage cluster, storage devices and a network coupling the servers and the storage devices. The servers have priority queues. The servers operate the priority queues for messaging from the servers to the storage devices via the network in accordance with a real time-class file system and a backup-class file system. A first subset of the priority queues has higher priority on the network for real time-class file system messaging of at least one type. A second subset of the priority queues has lower priority on the network for backup-class file system messaging of at least one type.