Pure Storage, Inc.

Netapp, Inc.

Network Appliance, Inc.

Alan Stuart Driscoll

Devang Kundanlal Shah

Andrew R Bernat

John Colgrove

Ronald S Karr

Peter Frank Corbett

Srishylam Simharajan

Toby Smith

Ethan L Miller

David A Grunwald

Neil A Vachharajani

Michael Kazar

Ganesh Ramanarayanan

Timothy W Brennan

Steve Hodgson

Steven P Hodgson

Grigori Inozemtsev

Malcolm Sharpe

Bruce Leverett

Emanuel G Noik

John Roper

Nitin Nagpal

Par Botes

Christopher Golden

Benjamin P Borowiec

Benjamin Scholbrock

Larry Touchette

Saurabh Shukla

Jimmy Chi-Wai Chui

Joern W Engel

Stephen Wu

Rithin Kumar Shetty

Gaurav Makkar

Connor Brooks

Vikas Yadav

Omprakaash C Thoppai

Brian Christopher Parkison

Lawrence Mertes

Thomas Gill

David W Minnich

Frederic Lherault

Damarugendra Mallaiah

Alvin Richards

Luke Winckelmann

Manfred Anton Buchmann

Umeshkumar Vasantha Rajasekaran

Keith Allen Arner

Balaji S Rao

Joe Warren Dukes, Jr

Balaji Rao

A method of managing host mappings for replication endpoints, the method including: identifying a target storage system replicating a source dataset of a source storage system, wherein a first host is mapped to the source dataset on the source storage system; providing, to the target storage system and in dependence upon a mapping of the first host to the source dataset, configuration information for connecting to a second host; and implementing, in response to a triggering event, a mapping of the second host to a replica dataset on the target storage system.

Managing host mappings for replication endpoints

Dynamically managing protection groups, including: identifying a protection group of storage resources, the protection group associated with a protection group management schedule that identifies one or more protection group management operations to be performed; detecting a membership change in the protection group; and updating, in dependence upon the change in the protection group, the protection group management schedule.

Dynamically managing protection groups

A method and apparatus for replicating a data container of a source storage server at the logical level in an unordered stream of individual data units are described. In certain embodiments, the replication operations can be performed without regard to the differences in geometry of physical persistent storage of the source and destination storage servers and without regard to the differences in data container format of the source and destination storage servers. An initial replication operation of the source data container is performed by transferring the data objects within the source data container to a replica data container in the destination storage server as an unordered stream of individual data units while preserving data object identifiers of the source data objects. Afterwards, incremental replication operations can be performed to capture modifications to the source data container over time after the initial replication operation.

Unordered idempotent logical replication operations

A system and method for performing replication using mediums. A snapshot 'S' is selected for replication, and the anchor medium ‘M’ of S is identified. The replica storage array ‘R’ to which M is being replicated determines a list of medium extents which are available. R sends this list to an original storage array ‘O’ and O generates a list of medium extents which need to be sent to R. Only those medium extents corresponding to M which R does not already have will be sent from O to R. Also, R can obtain medium extents from other source storage arrays during the replication process.

Efficient replication using metadata

Systems, methods, and computer readable storage mediums for replicating data to the cloud. A first dataset is replicated from a first storage subsystem to the cloud, with only the changes made to the first dataset since a previous replication event being replicated to the cloud. Additionally, the data may be deduplicated and compressed before being replicated from the first storage subsystem to the cloud. In some cases, the first dataset may be replicated to the cloud in a stream format which is not directly usable and then, at a later point in time, loaded onto a second storage subsystem from the cloud.

Restoration of a dataset from a cloud

Consistent application of protection group management policies across multiple storage systems

A pod, the pod including the dataset, a set of managed objects and management operations, a set of access operations to modify or read the dataset, and a plurality of storage systems, where: management operations can modify or query managed objects equivalently through any of the storage systems, access operations to read or modify the dataset operate equivalently through any of the storage systems, each storage system stores a separate copy of the dataset as a proper subset of the datasets stored and advertised for use by the storage system, and operations to modify managed objects or the dataset performed and completed through any one storage system are reflected in subsequent management objects to query the pod or subsequent access operations to read the dataset.

Synchronously replicating datasets

Distributing management responsibilities for a storage system that includes a storage array controller and a plurality of storage devices, including: identifying a plurality of elements in the storage system; for each of the plurality of elements in the storage system, creating a distributed manager, wherein each distributed manager is configured for gathering information describing the state of the associated element in the storage system, determining an action to perform against the associated element in the storage system, and executing an approved action against the associated element in the storage system; and creating a distributed management hierarchy that includes each of the distributed managers.

Hierarchical storage system management

Ensuring crash-safe forward progress of a system configuration update in a storage system that includes a storage array controller and a plurality of storage devices, including: determining a number of storage devices in the storage system; determining a number of unavailable storage devices in the storage system; and determining, for the one or more system configurations, whether the system configuration can be reconstructed in dependence upon the number of storage devices in the storage system and the number of unavailable storage devices in the storage system.

System configuration selection in a storage system

A system and method for hijacking inodes based on replication operations received in an arbitrary order is used to assist a data replication operation from a source storage system to a destination storage system. The source storage system generates a set of replication operations as part of a replication process and transmits the replication operations in an arbitrary order. After receiving a replication operation, the system determines whether the operation is inconsistent with a corresponding destination inode. If an inconsistency exists, the system hijacks the destination inode by replacing the destination inode's metadata with data determined based on the replication operation. The system may also delete metadata from the inode and/or initialize metadata to default values if the metadata was not replaced based on the replication operation. The system then waits for a second replication operation that contains the remaining metadata and replaces the metadata based on the second replication operation. In addition, data blocks associated with the previous version of the inode are freed.

System and method for hijacking inodes based on replication operations received in an arbitrary order

A system and method for performing replication using mediums. A snapshot 'S' is selected for replication, and the anchor medium 'M' of S is identified. The replica storage array &#x2018;R&#x2019; to which M is being replicated determines a list of medium extents which are available. R sends this list to an original storage array &#x2018;O&#x2019; and O generates a list of medium extents which need to be sent to R. Only those medium extents corresponding to M which R does not already have will be sent from O to R. Also, R can obtain medium extents from other source storage arrays during the replication process.

Data replication within a flash storage array

Replication to the cloud

Synchronously replicating datasets and other managed objects to cloud-based storage systems

Dynamic data protection within a flash storage system

Growing community of inventors

Fremont, CA, United States of America

Alan Stuart Driscoll