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409 results about "Network-attached storage" patented technology

Network-attached storage (NAS) is a file-level (as opposed to block-level) computer data storage server connected to a computer network providing data access to a heterogeneous group of clients. NAS is specialized for serving files either by its hardware, software, or configuration. It is often manufactured as a computer appliance – a purpose-built specialized computer. NAS systems are networked appliances which contain one or more storage drives, often arranged into logical, redundant storage containers or RAID. Network-attached storage removes the responsibility of file serving from other servers on the network. They typically provide access to files using network file sharing protocols such as NFS, SMB, or AFP. From the mid-1990s, NAS devices began gaining popularity as a convenient method of sharing files among multiple computers. Potential benefits of dedicated network-attached storage, compared to general-purpose servers also serving files, include faster data access, easier administration, and simple configuration.

Systems and methods for performing storage operations using network attached storage

Systems and methods for performing hierarchical storage operations on electronic data in a computer network are provided. In one embodiment, the present invention may store electronic data from a network device to a network attached storage (NAS) device pursuant to certain storage criteria. The data stored on the NAS may be migrated to a secondary storage and a stub file having a pointer pointing to the secondary storage may be put at the location the data was previously stored on the NAS. The stub file may redirect the network device to the secondary storage if a read request for the data is received from the network device.
Owner:COMMVAULT SYST INC

Method and apparatus for transparent distributed network-attached storage with web cache communication protocol/anycast and file handle redundancy

A distributed network-attached storage network provides content distribution using conventional file transfer protocols such as NFS and CIFS. A filer proxy accepts a client request and translates the client request to a file transfer protocol accepted at the file system having the file requested in the client request. The filer proxy generates a file handle for the file containing redundant filer proxy information to be used for failover to a backup filer proxy in the event of a network error or failure of an original filer proxy. The file handle also contains information for network security purposes such as detection of forged file handles.
Owner:CISCO TECH INC

Intelligent data storage and processing using fpga devices

A data storage and retrieval device and method is disclosed. The device includes at least one magnetic storage medium configured to store target data and at least one re-configurable logic device comprising an FPGA coupled to the at least one magnetic storage medium and configured to read a continuous stream of target data therefrom, having been configured with a template or as otherwise desired to fit the type of search and data being searched. The re-configurable logic device is configured to receive at least one search inquiry in the form of a data key and to determine a match between the data key and the target data as it is being read from the at least one magnetic storage medium. This device and method can perform a variety of searches on the target data including without limitation exact and approximate match searches, sequence match searches, image match searches and data reduction searches. This device and method may be provided as part of a stand-alone computer system, embodied in a network attached storage device, or can otherwise be provided as part of a computer LAN or WAN. In addition to performing search and data reduction operations, this device may also be used to perform a variety of other processing operations including encryption, decryption, compression, decompression, and combinations thereof.
Owner:IP RESERVOIR

Systems and methods for performing storage operations using network attached storage

Systems and methods for performing hierarchical storage operations on electronic data in a computer network are provided. In one embodiment, the present invention may store electronic data from a network device to a network attached storage (NAS) device pursuant to certain storage criteria. The data stored on the NAS may be migrated to a secondary storage and a stub file having a pointer pointing to the secondary storage may be put at the location the data was previously stored on the NAS. The stub file may redirect the network device to the secondary storage if a read request for the data is received from the network device.
Owner:COMMVAULT SYST INC

Intelligent data storage and processing using fpga devices

A data storage and retrieval device and method is disclosed. The device includes at least one magnetic storage medium configured to store target data and at least one re-configurable logic device comprising an FPGA coupled to the at least one magnetic storage medium and configured to read a continuous stream of target data therefrom, having been configured with a template or as otherwise desired to fit the type of search and data being searched. The re-configurable logic device is configured to receive at least one search inquiry in the form of a data key and to determine a match between the data key and the target data as it is being read from the at least one magnetic storage medium. This device and method can perform a variety of searches on the target data including without limitation exact and approximate match searches, sequence match searches, image match searches and data reduction searches. This device and method may be provided as part of a stand-alone computer system, embodied in a network attached storage device, or can otherwise be provided as part of a computer LAN or WAN. In addition to performing search and data reduction operations, this device may also be used to perform a variety of other processing operations including encryption, decryption, compression, decompression, and combinations thereof.
Owner:IP RESERVOIR

Enabling proxy services using referral mechanisms

A NAS (Network Attaches Storage) switch authenticates a client on multiple file servers for proxy services. The NAS switch enables proxy services by successively authenticating the client on the file servers using referrals. The NAS switch further comprises a connection manager to establish connections to the client and the file servers, a referral manager to redirect the client for successive authentications, and a transaction manager to perform data transfers with the file servers on behalf of the client. The system components support DFS (Distributed File System), and communicate using a protocol dialect that supports referral mechanisms such as NFSv4 (Network File Server version 4) or CIFS (Common Internet File System). The transaction manager also performs a protocol dialect translation service when the connection manager negotiates one protocol dialect with the client, and a different protocol dialect with the file server.
Owner:CISCO TECH INC

System and method for preserving state for a cluster of data servers in the presence of load-balancing, failover, and fail-back events

A state management system preserves a state for a cluster of file servers in a cluster file system in the presence of load balancing, failover, and fail-back events. The system provides a file and record locking solution for a clustered network attached storage system running on top of a cluster file system. The system employs a lock ownership scheme in which ownership identifiers are guaranteed to be unique across clustered servers and across various protocols the clustered servers may be exporting. The system supports multi-protocol clustered NAS gateways, NAS gateway server failover and fail-back, and load-balancing architectures. The system further eliminates a need for a lock migration protocol, resulting in improved efficiency and simplicity.
Owner:IBM CORP

System and method for lazy-copy sub-volume load balancing in a network attached storage pool

A system and method for lazy-copy sub-volume load balancing a networked attached storage pool is provided. The system and method create a qtree on a destination file server and performs a lazy-copy of the data from the source qtree to the sparse volume qtree.
Owner:NETWORK APPLIANCE INC

Cloud connector for interfacing between a network attached storage device and a cloud storage system

A cloud connector for interfacing between a network attached storage device and a cloud storage system (CSS). The cloud connector comprises a unified cloud protocol module for communicating with the network attached storage (NAS) device using a cloud transport protocol; a plurality of cloud protocol drivers for interfacing with at least one of a plurality of storage devices and a plurality of cloud storage providers, wherein the plurality of storage devices and the plurality of cloud storage providers are part of the CSS; and a permissions-and-quotas enforcement module for enforcing access control to data blocks stored in at least one the plurality of storage devices and the plurality of cloud storage providers of the CSS.
Owner:CTERA NETWORKS

Extended storage capacity for a network file server

A NAS switch provides extended storage capacity to a file server in a decentralized storage network such as a NAS (Network Attached Storage) storage network. The NAS switch sits in the data path of a client on the front end and a directory file server and shadow file servers on the back end. A segregation module in the NAS switch replicates data from the directory file server to a shadow file server, and then replaces the data in the directory file server with holey files. Holey files, which store a range of consecutive values such as zero with negligible storage space, retain the attributes of the data without retaining its storage consumption. Thus, the directory file server can server as a single directory hierarchy for several shadow file servers containing data beyond a capacity of the directory file server. When the NAS switch receives operations from the client, an association module forwards directory operations to the directory file server and data operations to the shadow file server. The NAS switch also provides services to several shadow file servers from a single directory file server.
Owner:CISCO TECH INC

Associative database scanning and information retrieval using FPGA devices

A data storage and retrieval device and method is disclosed. The device includes at least one magnetic storage medium configured to store target data and at least one re-configurable logic device comprising an FPGA coupled to the at least one magnetic storage medium and configured to read a continuous stream of target data therefrom, having been configured with a template or as otherwise desired to fit the type of search and data being searched. The reconfigurable logic device is configured to receive at least one search inquiry in the form of a data key and to determine a match between the data key and the target data as it is being read from the at least one magnetic storage medium. This device and method can perform a variety of searches on the target data including without limitation exact and approximate match searches, sequence match searches, image match searches and data reduction searches. This device and method may be provided as part of a stand-alone computer system, embodied in a network attached storage device, or can otherwise be provided as part of a computer LAN or WAN.
Owner:IP RESERVOIR

Network block services for client access of network-attached data storage in an IP network

The SCSI and iSCSI layers over the TCP / IP layers of the protocol stack in an IP network client and in an IP network-attached storage server are replaced with a thin network block services layer. The network block services layer 71 implements a network block services protocol having a very reduced set of commands transmitted between the client and the storage server. The network block services protocol is used in a configuration process in which logical volumes of the network-attached storage are exported to the client and become local pseudo-disk instances. The client's operating system and application programs access the local pseudo-disk instances with what appears to be a standard device driver for a local disk device. The device driver maintains a TCP connection to each open device, and responds to connection failure by re-connecting with an alternative server IP port.
Owner:EMC IP HLDG CO LLC

Intelligent data storage and processing using FPGA devices

A data storage and retrieval device and method is disclosed. The device includes at least one magnetic storage medium configured to store target data and at least one re-configurable logic device comprising an FPGA coupled to the at least one magnetic storage medium and configured to read a continuous stream of target data therefrom, having been configured with a template or as otherwise desired to fit the type of search and data being searched. The re-configurable logic device is configured to receive at least one search inquiry in the form of a data key and to determine a match between the data key and the target data as it is being read from the at least one magnetic storage medium. This device and method can perform a variety of searches on the target data including without limitation exact and approximate match searches, sequence match searches, image match searches and data reduction searches. This device and method may be provided as part of a stand-alone computer system, embodied in a network attached storage device, or can otherwise be provided as part of a computer LAN or WAN. In addition to performing search and data reduction operations, this device may also be used to perform a variety of other processing operations including encryption, decryption, compression, decompression, and combinations thereof.
Owner:IP RESERVOIR

Associative database scanning and information retrieval

A method and device are disclosed for an associative and approximate, analog or digital scanning of databases that allows for the asynchronous accessing of data from a mass storage medium. The invention includes providing dedicated analog and digital circuitry and decision logic at the mass storage medium level for determining a key identifying the data of interest, continuously comparing the key to a signal generated from a reading of the data from the mass storage medium with an approximate or exact matching circuit to determine a pattern match, determining a correlation value between the key and the data as it is read in a continuous fashion, and determining a match based upon a preselected threshold value for the correlation value. The pattern matching technique eliminates any need to compare data based on its intrinsic structure or value, and instead is based on an analog or digital pattern. The key and data may be either analog or digital. This device and method may be provided as part of a stand-alone computer system, embodied in a network attached storage device, or can otherwise be provided as part of a computer LAN or WAN.
Owner:IP RESERVOIR

Running anti-virus software on a network attached storage device

There is provided a method for running anti-virus software for a file system that is accessible by a client through a server. The method includes (a) creating a current point-in-time copy (PiTC) of the file system, (b) determining whether a file in the file system is changed, based on a difference between the current PiTC and an earlier PiTC of the file system, and (c) determining whether the file is to be examined by the anti-virus software, based on whether the file is changed.
Owner:IBM CORP

Virtualizing network-attached-storage (NAS) with a compact table that stores lossy hashes of file names and parent handles rather than full names

Multiple Network Attached Storage (NAS) appliances are pooled together by a virtual NAS translator, forming one common name space visible to clients. Clients send messages to the virtual NAS translator with a file name and a virtual handle of the parent directory that are concatenated to a full file-path name and compressed by a cryptographic hash function to generate a hashed-name key. The hashed-name key is matched to a storage key in a table. The full file-path name is not stored, reducing the table size. A unique entry number is returned to the client as the virtual file handle that is also stored in another table with one or more native file handles, allowing virtual handles to be translated to native handles that the NAS appliance servers use to retrieve files. File movement among NAS servers alters native file handles but not virtual handles, hiding NAS details from clients.
Owner:CUFER ASSET LTD LLC

Multi-protocol storage appliance that provides integrated support for file and block access protocols

A multi-protocol storage appliance serves file and block protocol access to information stored on storage devices in an integrated manner for both network attached storage (NAS) and storage area network (SAN) deployments. A storage operating system of the appliance implements a file system that cooperates with novel virtualization modules to provide a virtualization system that “virtualizes” the storage space provided by the devices. Notably, the file system provides volume management capabilities for use in block-based access to the information stored on the devices. The virtualization system allows the file system to logically organize the information as named file, directory and virtual disk (vdisk) storage objects to thereby provide an integrated NAS and SAN appliance approach to storage by enabling file-based access to the files and directories, while further enabling block-based access to the vdisks.
Owner:NETWORK APPLIANCE INC

Data transfer and recovery process

A backup image generator can create a primary image and periodic delta images of all or part of a primary server. The images can be sent to a network attached storage device and a remote storage server. In the event of a failure of the primary server, the failure can be diagnosed to develop a recovery strategy. Based on the diagnosis, at least one delta image may be applied to a copy of the primary image to generate an updated primary image at either the network attached storage or the remote storage server. The updated primary image may be converted to a virtual server in a physical to virtual conversion at either the network attached storage device or remote storage server and users may be redirected to the virtual server. The updated primary image may also be restored to the primary server in a virtual to physical conversion. As a result, the primary data storage may be timely backed-up, recovered and restored with the possibility of providing server and business continuity in the event of a failure.
Owner:EFOLDER INC

Backup system

A backup method for a system including a network attached storage including a primary volume and a secondary volume, and a backup server connected to the network. The network attached storage performs a resynchronization process when a backup request is received at a time point that consistency of a file system can be guaranteed, the resynchronization process making the contents of the primary and secondary volumes coincide with each other, splits the secondary volume from the primary volume and transfers data of the secondary volume to the backup server while an online operation with the primary volume continues. The backup server stores the transferred data in a recording medium. The network attached storage performs again the resynchronization process for making the contents of the primary and secondary volumes coincide with each other, after backup completion.
Owner:HITACHI LTD

Efficiently serving large objects in a distributed computing network

Techniques are disclosed for improving the serving of large objects (equivalently, large files) in distributed computing networks which include network-attached storage ("NAS"). Existing features of Hypertext Transfer Protocol ("HTTP") and of Web server implementations are leveraged to achieve performance improvements in a novel way, and thereby greatly facilitate introduction of the present invention into existing networking environments. In particular, objects meeting certain criteria may be served using "redirect files" in which a redirect status code is used to cause content retrieval requests to be automatically redirected from the requesting client device to the NAS, such that the requested content is served from the NAS rather than through a Web server from a Web server farm.
Owner:IBM CORP

Method and apparatus for enabling a NAS system to utilize thin provisioning

A NAS (network attached storage) controller managing file system data is configured for use in a storage system having thin provisioning capability. Physical storage capacity is used efficiently by making it possible for the NAS controller to identify to a disk array system having thin provisioning capability which segments of a thin provisioned volume are no longer in use. File system blocks or block groups no longer in use by the NAS controller are identified by the NAS controller. The NAS controller sends a release request to the disk array system specifying thin provisioning segments that correspond to the identified FS blocks or block groups. The release request instructs the disk array system to release chunks of physical storage capacity assigned to the specified thin provisioning segments so that the physical storage capacity can be made available for reuse in the disk array storage system.
Owner:HITACHI LTD

Storage area network file system

A shared storage distributed file system is presented that provides applications with transparent access to a storage area network (SAN) attached storage device. This is accomplished by providing clients read access to the devices over the SAN and by requiring most write activity to be serialized through a network attached storage (NAS) server. Both the clients and the NAS server are connected to the SAN-attached device over the SAN. Direct read access to the SAN attached device is provided through a local file system on the client. Write access is provided through a remote file system on the client that utilizes the NAS server. A supplemental read path is provided through the NAS server for those circumstances where the local file system is unable to provide valid data reads.Consistency is maintained by comparing modification times in the local and remote file systems. Since writes occur over the remote file systems, the consistency mechanism is capable of flushing data caches in the remote file system, and invalidating metadata and real-data caches in the local file system. It is possible to utilize unmodified local and remote file systems in the present invention, by layering over the local and remote file systems a new file system. This new file system need only be installed at each client, allowing the NAS server file systems to operate unmodified. Alternatively, the new file system can be combined with the local file system.
Owner:DATAPLOW

Network block services for client access of network-attached data storage in an IP network

The SCSI and iSCSI layers over the TCP / IP layers of the protocol stack in an IP network client and in an IP network-attached storage server are replaced with a thin network block services layer. The network block services layer 71 implements a network block services protocol having a very reduced set of commands transmitted between the client and the storage server. The network block services protocol is used in a configuration process in which logical volumes of the network-attached storage are exported to the client and become local pseudo-disk instances. The client's operating system and application programs access the local pseudo-disk instances with what appears to be a standard device driver for a local disk device. The device driver maintains a TCP connection to each open device, and responds to connection failure by re-connecting with an alternative server IP port.
Owner:EMC IP HLDG CO LLC

Storage area network file system

A shared storage distributed file system is presented that provides applications with transparent access to a storage area network (SAN) attached storage device. This is accomplished by providing clients read access to the devices over the SAN and by requiring most write activity to be serialized through a network attached storage (NAS) server. Both the clients and the NAS server are connected to the SAN-attached device over the SAN. Direct read access to the SAN attached device is provided through a local file system on the client. Write access is provided through a remote file system on the client that utilizes the NAS server. A supplemental read path is provided through the NAS server for those circumstances where the local file system is unable to provide valid data reads. Consistency is maintained by comparing modification times in the local and remote file systems. Since writes occur over the remote file systems, the consistency mechanism is capable of flushing data caches in the remote file system, and invalidating metadata and real-data caches in the local file system. It is possible to utilize unmodified local and remote file systems in the present invention, by layering over the local and remote file systems a new file system. This new file system need only be installed at each client, allowing the NAS server file systems to operate unmodified. Alternatively, the new file system can be combined with the local file system.
Owner:DATAPLOW

Snapshot acquisition method, storage system and disk apparatus

A network attached storage (NAS) system includes a disk array unit equipped with a copy device that copies data, and a NAS processing unit that provides file service via a network and is connected via a communication path to the disk array unit. The NAS processing unit is equipped with a snapshot management device that manages snapshots. The snapshot management device of the NAS processing unit designates a physical block to be copied as a snapshot. The copy device on the disk array unit copies the designated physical block within the disk array unit to create a snapshot and stores the snapshot in a separated region. The snapshot management device of the NAS processing unit manages meta data of the snapshot data in a manner accessible by the user depending on requirements.
Owner:HITACHI LTD

Distributed storage oriented cloud storage security architecture and data access method thereof

The invention discloses a distributed storage oriented cloud storage security architecture and a data access method thereof. The distributed cloud storage oriented security architecture comprises a cloud storage server, a distributed storage manager, a wafer breaker and storage devices, wherein the distributed storage manager and the cloud storage server are respectively connected with a client-side; the distributed storage manager and the cloud storage server are connected by a fiber channel (FC) or a routing switch; the wafer breaker is imbedded in the distributed storage manager; the distributed storage manager is connected with the storage devices by the FC or Iscsi; and the storage devices are connected by a network attached storage (NAS) or a storage area network (SAN). The storage devices are located at different places and are redundant mutually, thus improving the fault-tolerant ability of the devices and the optimal storage use ratio; the wafer breaker is used for carrying out fragment on stored data, so that the data are fragmented into data fragments which can not be identified by other authentication systems, and the fragmented data have relative confidentiality and security in the process of network transmission and data storage; and the storage devices and the server are the devices with higher cost performance, thus reducing the cost.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Network-attached storage system, device, and method supporting multiple storage device types

A network-attached system, device, and method supports storage devices having a plurality of storage device types, such as Fibre Channel storage devices, ATA storage devices, serial attached SCSI storage devices, serial ATA storage devices, and solid stage storage devices. Each storage device having a different storage device type is associated with a set of management rules. The management rules may includes rules for such things as identifying the dedicated storage device, configuring the dedicated storage device, sending disk protocol messages to the dedicated storage device, handling disk protocol message received from the dedicated storage device, and handling error and exception conditions.
Owner:HITACHI VANTARA LLC

System and method for personal cloud computing

A system and method for providing Personal Cloud computing and for hosting applications and / or content may employ a network attached storage device on which virtual machine monitors (T-cups) and logical devices (Ts) are instantiated in memory. Each T may include hosted content, application modules, a server module configured to host the modules and / or content, and an interface module configured to provide access to the modules and / or content in response to detecting an authorized key. Detecting an authorized key may include communicating with a name server to determine if a T instantiated on a storage device coupled to the system is associated with a device identifier on a list of device identifiers authorized to access the module(s). The storage device may be a computer, camera, frame, phone, audio / video player, or portable storage device. The name server may be configured to authenticate Ts, define T ownership, and / or establish friend-to-friend networks between Ts.
Owner:ADOBE INC
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