公开(公告)号：US20180335960A1

公开(公告)日：2018-11-22

申请号：US15596992

申请日：2017-05-16

申请人： Veritas Technologies LLC

发明人： Sudhakar Paulzagade ,  Pradip Kulkarni

IPC分类号： G06F3/06

CPC分类号： G06F3/0619 ,  G06F3/0613 ,  G06F3/0635 ,  G06F3/0643 ,  G06F3/0646 ,  G06F3/065 ,  G06F3/067 ,  G06F3/0683 ,  G06F11/1464 ,  G06F11/1469 ,  G06F11/2066 ,  G06F17/30212 ,  H04L67/1002

摘要： The disclosed computer-implemented method for load balancing backup data may include (1) receiving a request to backup files in a multi-node computing cluster, (2) identifying a backup distribution of the files among multiple backup clients, (3) reading an initial data block of a current file from a data node in the cluster, (4) reading a copy of the initial data block of an additional file from another data node in the cluster, (5) reading a subsequent data block of the current file from the data node in the cluster, and (6) balancing backup of the current and additional files among the data node and the another data node by reading a copy of a subsequent backup data block of the additional file from the another data node in the multi-node computing cluster. Various other methods, systems, and computer-readable media are also disclosed.

公开(公告)号：US09965542B2

公开(公告)日：2018-05-08

申请号：US14997098

申请日：2016-01-15

申请人： COMPUVERDE AB

发明人： Stefan Bernbo ,  Christian Melander ,  Roger Persson ,  Gustav Petersson

IPC分类号： G06F3/00 ,  G06F17/30 ,  G06F9/54 ,  H04L12/24

CPC分类号： G06F17/30598 ,  G06F9/54 ,  G06F17/30194 ,  G06F17/30206 ,  G06F17/30212 ,  G06F17/30312 ,  H04L41/0213

摘要： A method for data storage implemented in a data storage system is disclosed. Data storage nodes may be interconnected by means of a communications network. The method may include sending a request for a first data item to a plurality of storage nodes. The first data item may include a reference to a second data item stored in the storage system. The method may include receiving the first data item from at least one storage node, and sending a request for the second data item to the plurality of storage nodes based on the reference included in the first data item.

公开(公告)号：US09946716B2

公开(公告)日：2018-04-17

申请号：US15097034

申请日：2016-04-12

申请人： NETAPP, INC.

发明人： Gaurav Makkar ,  Srinivasan Narayanamurthy ,  Kartheek Muthyala

IPC分类号： G06F7/02 ,  G06F17/30

CPC分类号： G06F17/30088 ,  G06F17/302 ,  G06F17/30203 ,  G06F17/30212 ,  G06F17/30312 ,  G06F17/30327

摘要： Technology is disclosed for managing data in a distributed file system (“the technology”). The technology can gather metadata information associated with the data stored within the distributed file system, create a secondary namespace within a local file system of a local host using the gathered metadata information and store the gathered metadata information as files within the secondary namespace. Further, when a request to create a PPI of the distributed file system is received, the technology can create a PPI of the secondary namespace using a PPI creation feature of the local file system.

公开(公告)号：US09898514B2

公开(公告)日：2018-02-20

申请号：US15145367

申请日：2016-05-03

申请人： HITACHI DATA SYSTEMS CORPORATION

发明人： Jeffrey M. Crump ,  Margie E. Tirado

IPC分类号： G06F17/30 ,  G06Q10/10

CPC分类号： G06F17/30554 ,  G06F17/30073 ,  G06F17/30106 ,  G06F17/30206 ,  G06F17/30212 ,  G06F17/30424 ,  G06F17/30477 ,  G06F17/30489 ,  G06F17/30867 ,  G06Q10/10

摘要： A redundant array of independent nodes are networked together. Each node executes an instance of an application that provides object-based storage. Metadata objects are stored in a set of regions distributed among the nodes across the array. A given region is identified by hashing a metadata object attribute and extracting a given set of bits of a resulting hash value. A method of managing query results comprises: receiving, by a first node of the plurality of independent nodes from a client application, a request for a list of objects with a criterion; issuing by the first node a query to all the nodes based on the received request; processing the query by each node over the regions in the node using the metadata objects stored in the regions; aggregating and filtering by the first node results of the query from all the nodes; and returning by the first node the aggregated and filtered results to the client application.

公开(公告)号：US09792344B2

公开(公告)日：2017-10-17

申请号：US14697224

申请日：2015-04-27

申请人： DataDirect Networks, Inc.

发明人： Naveen Zalpuri ,  Joe Bounour

IPC分类号： G06F17/00 ,  G06F17/30

CPC分类号： G06F17/30578 ,  G06F17/30091 ,  G06F17/30174 ,  G06F17/30212 ,  G06F17/30525 ,  G06F17/3056 ,  G06F17/30864

摘要： Asynchronous namespace maintenance in a distributed replicated data storage system is disclosed. An access device/program serving as a front end to the distributed replicated data storage system updates a batch of updated meta data about stored data items when data items are stored in the distributed replicated data storage system. When the elapsed time since the last batch of data item meta data was stored exceeds a first threshold value or the current batch size exceeds a second threshold value, the access device/program stores the current batch of updated meta data as an object in the distributed replicated data storage system, receiving a batch object identifier for the stored batch of updated meta data, and distributes the batch object identifier to other access devices and/or access programs which retrieve the batch of updated meta data and update their namespaces.

公开(公告)号：US09747163B2

公开(公告)日：2017-08-29

申请号：US14682089

申请日：2015-04-08

申请人： Druva Technologies Pte. Ltd.

发明人： Anand Apte ,  Somesh Jain ,  Milind Borate ,  Shekhar S. Deshkar

IPC分类号： G06F7/02 ,  G06F17/30 ,  G06F11/14 ,  G06F11/20

CPC分类号： G06F11/1402 ,  G06F11/1448 ,  G06F11/1464 ,  G06F11/202 ,  G06F17/30212 ,  G06F17/30575

摘要： A system and a method are disclosed for pre-seeding data to backup servers and determining servers for additional backups. Backup data is received from a client device through a first backup request and sent to a primary server for storage. Additional backup data from a second backup request is received. After the initial backup data is stored on the primary server and pre-seeded by the primary server on a secondary server, a status of backup servers associated with the client device is received. The backup servers include the primary server and can include the secondary server. Responsive to the status indicating availability of a server in the backup servers, a recipient server is identified from the backup servers and the additional backup data is sent to the identified recipient server.

公开(公告)号：US20170169053A1

公开(公告)日：2017-06-15

申请号：US15430876

申请日：2017-02-13

申请人： NetApp Inc.

发明人： Vikas Yadav ,  Raghu R. Arur ,  Amol Chitre

IPC分类号： G06F17/30 ,  G06F11/20 ,  G06F3/06

CPC分类号： G06F17/30212 ,  G06F3/0619 ,  G06F3/0643 ,  G06F3/065 ,  G06F3/0683 ,  G06F11/2069 ,  G06F11/2082 ,  G06F17/30088 ,  G06F17/30097

摘要： Embodiments of the present invention provide a mechanism for converting an existing mirror relationship between an original dataset at a source storage system and a copy of the original dataset at a destination system to a new mirror without discarding the existing copy of the original dataset and without transferring data to create a new dataset to replace the copy of the original dataset at the destination storage system. Rather, a directory structure (including file attributes) of the source storage system is transferred to the destination storage system and a comparison is made to identify file attributes at the destination system that match the transferred file attributes. If a match is found, a mapping between the matched file attributes is created. Subsequent updates to the to destination storage system can be done using a technique other than the one that was used to create a copy of the source dataset.

公开(公告)号：US20170154053A1

公开(公告)日：2017-06-01

申请号：US15431343

申请日：2017-02-13

申请人： Open Text SA ULC

发明人： David Thomas ,  Scott Wells

IPC分类号： G06F17/30 ,  H04L29/08 ,  G06F12/0866

CPC分类号： G06F17/30174 ,  G06F3/0482 ,  G06F3/04842 ,  G06F12/0804 ,  G06F12/0866 ,  G06F17/30126 ,  G06F17/30132 ,  G06F17/30212 ,  G06F2212/1024 ,  G06F2212/154 ,  G06F2212/163 ,  G06F2212/263 ,  G06F2212/264 ,  G06F2212/463 ,  H04L67/1095 ,  Y10S707/951 ,  Y10S707/959 ,  Y10S707/99931 ,  Y10S707/99945 ,  Y10S707/99952

摘要： The invention provides a system and method for file synchronization. One embodiment of the system of this invention includes a software program stored on a computer readable medium. The software program can be executed by a computer processor to receive a file from a server; store the file as a cached file in a cache; determine if the cached file has been modified; and if the cached file has been modified, communicate the cached file directly to the database.

公开(公告)号：US09639294B2

公开(公告)日：2017-05-02

申请号：US15059054

申请日：2016-03-02

申请人： Commvault Systems, Inc.

发明人： Anand Prahlad ,  David Ngo

IPC分类号： G06F17/30 ,  G06F3/06 ,  G06F11/14 ,  H04L29/08

CPC分类号： G06F11/1458 ,  G06F3/0604 ,  G06F3/0619 ,  G06F3/0638 ,  G06F3/065 ,  G06F3/0653 ,  G06F3/0673 ,  G06F3/0683 ,  G06F11/1446 ,  G06F17/3007 ,  G06F17/30174 ,  G06F17/30179 ,  G06F17/30212 ,  G06F17/30371 ,  G06F17/30581 ,  G06F2201/82 ,  H04L67/1095

摘要： Performing data management operations on replicated data in a computer network. Log entries are generated for data management operations of an application executing on a source system. Consistency point entries are used to indicate a time of a known good, or recoverable, state of the application. A destination system is configured to process a copy of the log and consistency point entries to replicate data in a replication volume, the replicated data being a copy of the application data on the source system. When the replicated data represents a known good state of the application, as determined by the consistency point entries, the destination system(s) may perform a storage operation (e.g., snapshot, backup) to copy the replicated data and to logically associate the copied data with a time information (e.g., time stamp) indicative of the source system time when the application was in the known good state.

公开(公告)号：US09609060B2

公开(公告)日：2017-03-28

申请号：US14236666

申请日：2012-07-31

申请人： Masaki Kan ,  Takashi Torii

发明人： Masaki Kan ,  Takashi Torii

IPC分类号： H04L29/08 ,  G06F17/30 ,  G06F3/06 ,  G06F11/20

CPC分类号： H04L67/1097 ,  G06F3/061 ,  G06F3/0617 ,  G06F3/065 ,  G06F3/067 ,  G06F11/2094 ,  G06F17/30212 ,  H04L29/0854 ,  H04L67/1095 ,  H04L67/2842

摘要： Provided a plurality of data nodes connected in a network, each including a data storage unit. The data node of data replication destination temporarily stores data to be updated in an intermediate data structure, and converts asynchronously with respect to the update request to a target data structure to store the converted data in the data storage unit. Based on access history information stored in an access history recording unit, trigger information, concerning timing for execution of conversion to the target data structure performed asynchronously by the data node is changed.