148 results about "Internet small computer system interface" patented technology

A method and system is disclosed to maintain data consistency over an internet small computer system interface (iSCSI) network, for disaster recovery and remote data replication purposes. Data consistency and replication is maintained between primary and secondary sites geographically distant from each other. According to the method, a primary journal volume logs all changes (data writes) made to a primary volume, transmits the changes based on a preconfigured policy to a secondary journal volume, and thereafter merges the changes stored in the secondary journal volume with a secondary volume. Changes in the journal volumes are ordered in point-in-time (PiT) frames and transmitted using a vendor specific SCSI command utilizing the iSCSI protocol.

An Internet small computer system interface (iSCSI) system, method and associated data structure are provided for receiving data in protocol data units. After a protocol data unit is received, a data list is identified that describes how the data contained in the protocol data unit is to be stored (i.e. placed, saved, etc.) in memory (i.e. application memory). Further stored is a state of the data list. To this end, the state of the data list is used in conjunction with the storage of data from a subsequent protocol data unit.

The invention relates to a method for intensively storing and backing up data based on an operating system virtualization theory in the technical field of computer application. The method is characterized by comprising the following steps of: constructing one to a plurality of virtual isolation environments on a host operating system of a physical host machine, wherein each virtual isolation environment has a use mode which is totally the same as the use mode of the host operating system; and completely isolating data produced in the virtual isolation environment from data produced by the host operating system, and storing the data to different physical storage positions respectively. By storing an application program relative to a working service of a user into the virtual isolation environment and running the application program, and redirecting the physical storage position to a storage server in a network through a common internet file system (CIFS) or internet small computer system interface (iSCSI) protocol, a manager only needs to back up the data on the storage server at a time when the data of all client hosts are needed to be backed up, so the working efficiency is improved greatly; meanwhile, only the data relative to the working service is backed up, so the backup storage space is saved and useless data restoration is avoided.

The invention discloses a high-availability method, a node device and a system for achieving cluster storage. The method includes triggering a taking event according to received node status information; acquiring volume information, storage device information and storage area networking (SAN) storage information of a fault node and generating local configuration information; and mounting a storage device in an SAN cluster and starting system services of a distributed file system, wherein the volume on the storage device is recovered to use. According to the method, the node device and the system, during resource switching among nodes, the internet protocol (IP) of the fault node and resources in a service course can be taken, storage software service courses and physical storage resources of the fault node can be taken, network file system (NFS)/ common internet file system (CIFS)/ hyper text transport protocol (HTTP)/ file transfer protocol (FTP)/ internet small computer system interface (ISCSI) protocols and a PanaFS protocol are supported, and a transmission control protocol (TCP)/IP reconnection technology is used so that transparent taking of the fault node is achieved, and service interruption during taking can not be caused.

Certain aspects of a method and system for an adaptive cache for memory protection table (MPT), memory translation table (MTT) and TCP context are provided. At least one of a plurality of on-chip cache banks integrated within a multifunction host bus adapter (MHBA) chip may be allocated for storing active connection context for any of a plurality of communication protocols. The MHBA chip may handle a plurality of protocols, such as an Ethernet protocol, a transmission control protocol (TCP), an Internet protocol (IP), Internet small computer system interface (iSCSI) protocol, and a remote direct memory access (RDMA) protocol. The active connection context may be stored within the allocated at least one of the plurality of on-chip cache banks integrated within the multifunction host bus adapter chip, based on a corresponding one of the plurality of communication protocols associated with the active connection context.

A data acceleration apparatus for Internet small computer system interface (iSCSI) and an iSCSI storage system using the same are provided. A data acceleration apparatus comprises an I/O processor, a memory, a TOE controller, and an IPsec controller. The I/O processor is connected to an iSCSI storage system through a PCI bus and controls a PCI bridge and the memory. The memory stores data according to the control by the I/O processor, serves as a buffer for processing a TCP/IP and an IPsec protocol, and provides a data storage space. The TOE controller receives data to be read or written through the I/O processor, offloads a stack of the TCP/IP, and processes the TCP/IP. The IPsec controller processes the IPsec protocol for the inputted and outputted data.

The invention provides an easily-implemented cloud-storage-based network hard disk device and a management method thereof. The easily-implemented cloud-storage-based network hard disk device is implemented in two parts including a server side and a client side. According to the characteristics of Linux, which includes stability, high efficiency and applicability to serving as a server, the server side is implemented mainly through the iSCSI (Internet small computer system interface) protocol, logical volume management and NFC (near field communication) servers under a Linux environment and virtualizes unoccupied storage space distributed in different spaces into a hard disk for the client side to use; the client side is implemented mainly through ASP.NET (active server pages.NET) and can smoothly complete the functions of file folder creation, deleting and moving and file uploading, downloading, moving, deleting and searching.

The invention is applicable to the storage field, particularly relates to distributed storage systems and discloses a distributed storage method and system of a block device. The method comprises defining the storage space of the block device as a logical volume and segmenting the logical volume into N logical blocks in a fixed size; actually storing the logical blocks in a plurality of physical storages, and associating the mapping relations of the logical blocks and a plurality of corresponding physical storage addresses through indexing. The system comprises a data access layer, an index server and a storage server, wherein the data access layer processes a read-write request of the block device on the basis of an iSCSI (Internet small computer system interface) protocol; after analyzing the protocol, the data access layer obtains the actual physical storage position of the logical block involved in the request from the index server; after receiving the request, the index server queries associated indexes to find a corresponding storage server and feeds information back to the data access layer; after receiving information fed back by the index server, the data access layer accesses the storage server to complete subsequent data reading and writing tasks.

The invention discloses a disk data recovery method which comprises the steps that A, latest snapshot time point data is selected according to the damage time of disk data of a source book; the latest snapshot time point data is mounted on a user server by an iSCSI (Internet Small Computer System Interface) technology; iSCSI virtual disk back-up data is generated, wherein the iSCSI virtual disk back-up data comprises file data required to be recovered; and B, the file data, required to be recovered, in an iSCSI virtual disk is transferred to the source book. With the adoption of the technical scheme, a user service is not required to be suspended, and instant recovery of the disk data can be achieved.

A method and system that enable system firmware to efficiently boot an operating system (OS) and/or client program from a network-connected Internet Small Computer Systems Interface (iSCSI) device. The method generally comprises: (1) defining the firmware representation of the iSCSI device within the hierarchical data structure that represents the system hardware; and (2) extending the network support package to accommodate additional boot arguments that allow system firmware to acquire the information required for booting from the network-connected iSCSI device, while utilizing one of the existing discovery protocols.

An apparatus, system, and method are disclosed for deploying sensitive communication parameters to a diskless computing device. A parameter structure module is included to store one or more Internet Small Computer System Interface (“iSCSI”) communication parameters in an extendable data structure configured to store a set of basic parameter settings and a set of extended parameter settings. A link module is included to establish a secure link to a diskless computing device over a physically secure connection. A deployment module is included to deploy the extendable data structure over the secure connection to a non-volatile memory in the diskless computing device. The non-volatile memory is configured to provide sensitive iSCSI communication parameters provided by the extendable data structure to a CPU of the diskless computing device during a boot sequence.

The invention provides a data transmission scheduling method, a system and a device for IP storage area network (SAN) storage, wherein the method comprises setting sub cache on a storage front end server end aiming at each channel, setting priority for each channel according to actual requirements, extracting data from the sub cache of each channel according to the priority of each channel and according to a preset priority strategy, and sending internet small computer system interface (iSCSI writing request) aiming at each data and according to extracting sequence, or setting request list aiming at each channel on an IP SAN storage device end, setting priority for each channel according to actual requirements, and extracting iSCSI writing request from the request list of each channel according to the priority of each channel and according to the preset priority strategy, and answering each iSCSI writing request and getting ready for receiving response according to the extracting sequence, thereby satisfying different data storage requirements of each channel.

The invention provides a self-adaptive I/O (Input / Output) scheduling method of a multi-control storage system. The self-adaptive I/O scheduling method of the multi-control storage system has the advantages of being capable of achieving load balance of a multiple controller architecture and among controllers; avoiding risk and performance choke points caused by single controller failure; supporting a plurality of host connecting interfaces; supporting an ISCSI (Internet Small Computer System Interface), an FC (Fibre Channel), an InfiniBand and 10 gigabit network connection; being capable of providing high bandwidth IB (InfiniBand) and the 10 gigabit network connection for users at the same time; and meeting the differentiation requirements of customers for high bandwidth and high performance. The invention relates to I/O scheduling of the multi-control storage system and provides the I/O scheduling method among multiple controllers. When the multi-control storage system accepts an I/O request from an application layer, the self-adaptive I/O scheduling method of the multi-control storage system can be utilized to schedule the I/O request to the multiple controllers to perform simultaneous concurrent execution, not only allocates unallocated I/O requests to low load controllers, but also reschedules I/O requests to lower load controllers from overload controllers, so that the load state of every controller in a system is improved, I/O load scheduling and balance on multi-control nodes are achieved, potentials of equipment are fully scheduled, and the performance of the system is improved.

The invention discloses a snapshot creating method and system and an application server, which are applied to an SAN (Storage Area Network) based on iSCSI (Internet Small Computer System Interface). The method comprises the following steps of: configuring a snapshot creating condition on a snapshot agent according to the service idle condition of the application server, and notifying an application program to stop data reading and writing and simultaneously refreshing a cache when the snapshot agent finds that the snapshot creating condition is met; sending a snapshot creating request to storage equipment by the snapshot agent, receiving the request by the storage equipment and creating snapshot to a logic unit (LUN) of the application server. The storage data protection effect is optimized in the invention.

The invention relates to a convergence method of an iSCSI (Internet Small Computer System Interface) and an FCP (Fiber Channel Protocol). The method realizes the convergence of the iSCSI and the FCP through a convergence storage module and comprises the following steps of: (1) initializing the convergence storage module, establishing the mapping between a logical address space and physical storage equipment in a data storage system and recognizing the type of the physical storage equipment; (2) parsing an SCSI command; and (3) converging the SCSI command; and (4) returning an execution result of the SCSI command. The invention supports the exchange of an iSCSI data packet and an FCP data packet on an SCSI layer, realizes the visualization of a heterogeneous network storage system and effectively improves the deployment flexibility and the expandability of a disaster recovery system.

The invention discloses a virtual machine data persistence storage method in cloud environment. The virtual machine data persistence storage method in the cloud environment comprises the steps: (1) a major node receives a user request from a server and judges whether the user request is a request of block device creation or block device dilatation, if the user request is the request of the block dive creation, the step (2) is conducted, and if the user request is of block device dilatation, the step (5) is conducted, (2) the major node obtains disk information of all storage nodes, selects a storage node according to the user request and informs the storage node to create a block device, (3) the storage node creates and manages a logical volume according to information from the major node, (4) the storage node registers the logical volume into an internet small computer system interface (iSCSI) to enable the logical volume to be provided to and called by the virtual machine as a block device service, and (5) the major node obtains the storage node which the block device is located in according to the user request and calls the storage node to conduct dilatation to the block device. The virtual machine data persistence storage system and method in the cloud environment solve the problem that user data can not be stored persistently after the virtual machine is turned off in an existing cloud computing system.

The invention discloses a load balancing optimizing method based on block level cloud storage. According to the method, a heteromorphosis part of a genetic algorithm is added to a load balancing strategy to improve accuracy of the strategy to search globally optimal solution as far as possible; simultaneously, a breakpoint resume function facing an internet small computer system interface (ISCSI) is designed, so that when a volume server is reselected for ISCSI reconnection, users which are uploading data needn't upload the data again, a system can automatically continue uploading from the breakpoint, and the reliability of the system is improved; and by means of existing isomerism storage environments, a hierarchical storage management mechanism based on volume life cycle is provided, and advantages and characteristics of different storage devices are fully utilized to further improving access efficiency of the system. The load balancing optimizing method can be used for solving the load balancing problem of a cloud storage system in the technical field of computer storage.

The invention provides a cloud-storage-structure-based remote storage management system, which comprises a cloud storage service center and a cloud storage client center, wherein the cloud storage service center comprises Internet data centers which communicate with one another by an Ethernet protocol; and the cloud storage client center is remotely connected with the cloud storage service center by an Internet small computer system interface (iSCSI) protocol, and comprises individual users and enterprise users. Compared with the prior art, the cloud-storage-structure-based remote storage management system enables any authorized user to be connected with a cloud storage device by an access cable at any place and access the data of the cloud storage device, and achieve a larger storage space, higher input/output (I/O) speed and higher redundancy.

The invention discloses caching data synchronous system and method in a process of accessing an iSCSI (Internet Small Computer System Interface) storage device. The system and the method can judge whether caching data volume of a virtual disk is qualified or not after receiving a data access request sent by a starter to the virtual disk appointed by a target terminal and starting a caching data synchronizing process of the virtual disk; if qualified, the data access of the virtual disk is blocked and the data access of the virtual disk is opened after an appointed operation is carried out, and an access request is restarted to normally respond; and if not qualified, the access request of a starter end is responded by selecting a normal response or sending a busy response mode according to the current state of a counter or the counter. Therefore, the system and the method can complete the caching data synchronization and can keep that the data access of the started end is not stopped.

The invention relates to the technical field of distributed virtual disk management, in particular to a method for realizing high availability of a logical volume. A system comprises a Web server, a front-end agent server, a memory controller, an LVM (Logical Volume Manager) function module, an iSCSI (Internet Small Computer System Interface) function module and a distributed file system. A user accesses the web server through a network and other modules carry out calling in accordance with a calling relationship by the web server according to user operation. The invention solves the problem of single-point failure caused by a single storage controller in a storage system, provides creation, mounting and issuing of a multi-center management logical volume, ensures storage high availability through a snapshot technology, provides a disaster recovery function of the content of the logical volume, and can be widely applied to a storage management system of a cloud computing system.

The invention discloses a method and device for realizing a storage device test of a storage area network (SAN). The method comprises the following steps of: selecting fault types to be injected for testing an SAN storage device; and packing a fault injection command to be an iSCSI (internet Small Computer System Interface) information pack according to a fault injection manner and the selected fault type, and transmitting the information pack to the storage area network to start fault injection. According to the method and device disclosed by the invention, various faults of a shared storage device are simulated under an SAN environment, and simulated fault injection is carried out by a starting end and a target end so that fault treatment and fault recovery conditions of each end are tracked, the tracking process is simultaneously recorded in a system log, and treatment measures taken by a system in an abnormal condition every time are tracked down by checking the system log, thus the coverage rate and the reliability of the shared storage device test in the SAN are improved, and the test cost is reduced.

The invention provides a management method of a client in cloud storage based on iSCSI (internet small computer system interface), wherein when a client user performs a correlated operation by calling of a management interface, and parsing and conversion of access control, the cloud storage management order and the volume management technology do not need to be known, the complex allocation work is not or rarely carried out basically, therefore, the complex degree of system management is reduced, the user requirement is satisfied at more levels, and the user personalized management is strengthened. The above advantages of a management architecture model of the client in the cloud storage based on iSCSI make up for the disadvantages of the existing monitoring-based cloud storage, and enable a client user to manage storage objects and simplify management operation by a uniform management interface. The method reflected the individuation, flexible management and the other characteristics of cloud storage, and is more suitable for multi-aspect user requirements, thereby having wide development prospect.