Abstract: A method and system for backing up and restoring data includes: determining, at a server storage area network (SAN) node, an LUN required for protection within a server SAN node based on communication between a backup agent and a logic unit number (LUN) agent in the server SAN node; determining a target backup device based on communication between the backup agent and respective target agent of a plurality of backup devices, the plurality of backup devices being connected with the server SAN node; and transmitting a virtual disk control command to the target backup device in response to the backup or restoration being triggered, such that data in the LUN required for protection is backed up to the target backup device or restored from the target backup device via an activated virtual disk interface of the target backup device.

Abstract: There is provided a method and device for data replication. The method comprises: obtaining, in a network interface card, data segments by segmenting input first data; determining, in the network interface card, fingerprints corresponding to the data segments; and comparing, in a central processing unit, the fingerprints of the data segments with existing fingerprints corresponding to processed data segments, and determining, based on a result of the comparing, whether to de-duplicate the data segments corresponding to the fingerprints, to perform the data replication.

Abstract: A method and system for backing up and restoring data includes: determining, at a server storage area network (SAN) node, an LUN required for protection within a server SAN node based on communication between a backup agent and a logic unit number (LUN) agent in the server SAN node; determining a target backup device based on communication between the backup agent and respective target agent of a plurality of backup devices, the plurality of backup devices being connected with the server SAN node; and transmitting a virtual disk control command to the target backup device in response to the backup or restoration being triggered, such that data in the LUN required for protection is backed up to the target backup device or restored from the target backup device via an activated virtual disk interface of the target backup device.

Abstract: Embodiments of the present disclosure relate to a method and an apparatus for backup communication. The method comprises: detecting a failure of a management interface between a processor and a baseboard management controller; in response to detecting the failure of the management interface, performing backup communication between the processor and the baseboard management controller using a control interface, wherein the baseboard management controller can obtain a physical parameter of the processor via the control interface; and transmitting a packet between the processor and the baseboard management controller via the control interface.

Abstract: Technology for simulating a slow storage disk. The technology intercepts an input/output I/O command to be dispatched to a storage disk and simulates a slow storage disk with the storage disk by injecting a delay to the dispatch of the intercepted I/O command based on a predetermined delay injection policy.

Abstract: Embodiment of the present disclosure provides a system, a computer program product and a method for managing a peripheral component interface express device hotplug by receiving an operation command from a user through a user command interface module; sending, in response to reception of the operation command, the operation command to a hotplug management module via an interface provided by a hotplug interface library; and performing, by the hotplug management module, the operation command by means of at least one of an interface provided by an operating system, a kernel of the operating system, and at least one of a corresponding plurality of hotplug group service modules, in response to receiving the operation command.

Abstract: Embodiments of the present disclosure provide a system, a computer program product and a method for detecting and handling errors in a bus structure by obtaining error information from a plurality of hardware registers associated with a bus; in response to determining that a number of the errors in one or more hardware registers of the plurality of hardware registers exceeds a predetermined threshold, detecting performance of hardware devices corresponding to the one or more hardware registers; and in response to determining performance deterioration of one hardware device in the hardware devices corresponding to the one or more hardware registers, determining that an error occurs in the hardware device.

Abstract: Embodiment of the present disclosure provides a system, a computer program product and a method for managing a peripheral component interface express device hotplug by receiving an operation command from a user through a user command interface module; sending, in response to reception of the operation command, the operation command to a hotplug management module via an interface provided by a hotplug interface library; and performing, by the hotplug management module, the operation command by means of at least one of an interface provided by an operating system, a kernel of the operating system, and at least one of a corresponding plurality of hotplug group service modules, in response to receiving the operation command.

Abstract: Embodiments of the present disclosure relate to a method and an apparatus for backup communication. The method comprises: detecting a failure of a management interface between a processor and a baseboard management controller; in response to detecting the failure of the management interface, performing backup communication between the processor and the baseboard management controller using a control interface, wherein the baseboard management controller can obtain a physical parameter of the processor via the control interface; and transmitting a packet between the processor and the baseboard management controller via the control interface.

Abstract: A method, system, and computer program product for accelerating data reconstruction for a disk array, the disk array comprising a plurality of physical disks, the method, system, and computer program product including virtualizing the plurality of physical disks as a plurality of virtual disks, applying a data protection algorithm to the plurality of virtual disks to obtain redundant information on data to be stored, providing a map from the plurality of virtual disks to the plurality of physical disks, storing, based on the map, the data and the redundant information in the plurality of physical disks according to a predetermined allocation policy, and in response to at least one of the plurality of physical disks failing, implementing a data reconstruction for a disk array based on the redundant information and the data in working disks from amongst the plurality of physical disks.

Abstract: Embodiments of the present disclosure provide a method of analyzing data in a storage system, a storage system, and a computer program product. The method includes: in response to detecting a request for a data analytic job, obtaining target data for the data analytic job from a first storage device of the storage system. The method also includes storing the target data into a second storage device of the storage system that is assigned for data analysis, and performing the data analytic job using a data processing device and the second storage device in the storage system.

Abstract: Embodiment of the present disclosure provides a system, a computer program product and a method for managing a peripheral component interface express device hotplug by receiving an operation command from a user through a user command interface module; sending, in response to reception of the operation command, the operation command to a hotplug management module via an interface provided by a hotplug interface library; and performing, by the hotplug management module, the operation command by means of at least one of an interface provided by an operating system, a kernel of the operating system, and at least one of a corresponding plurality of hotplug group service modules, in response to receiving the operation command.

Abstract: Embodiments of the present disclosure relate to a method and an apparatus for backup communication. The method comprises: detecting a failure of a management interface between a processor and a baseboard management controller; in response to detecting the failure of the management interface, performing backup communication between the processor and the baseboard management controller using a control interface, wherein the baseboard management controller can obtain a physical parameter of the processor via the control interface; and transmitting a packet between the processor and the baseboard management controller via the control interface.

Abstract: There is provided a method and device for data replication. The method comprises: obtaining, in a network interface card, data segments by segmenting input first data; determining, in the network interface card, fingerprints corresponding to the data segments; and comparing, in a central processing unit, the fingerprints of the data segments with existing fingerprints corresponding to processed data segments, and determining, based on a result of the comparing, whether to de-duplicate the data segments corresponding to the fingerprints, to perform the data replication.

Abstract: There is provided a method and device for data replication. The method comprises: obtaining, in a network interface card, data segments by segmenting input first data; determining, in the network interface card, fingerprints corresponding to the data segments; and comparing, in a central processing unit, the fingerprints of the data segments with existing fingerprints corresponding to processed data segments, and determining, based on a result of the comparing, whether to de-duplicate the data segments corresponding to the fingerprints, to perform the data replication.

Abstract: Embodiments of the present disclosure provide a device for data backup comprising: a secondary backup device coupled to a primary backup device, the secondary backup device further comprising: data segmentation unit operable to divide target data to be backed up into a plurality of data segments; data fingerprint generation unit operable to generate a corresponding data fingerprint for each data segment from a plurality of data segments, and providing the data fingerprint to the primary backup device for backing up the target data at the primary backup device, wherein the data fingerprint is a mapped data segment of a length less than a corresponding data segment length.

Abstract: Embodiments of the present disclosure provide a method, a computer program product and an apparatus for determining a failure location in a storage system by obtaining performance information of a disk; in response to the performance information indicating that at least one or more performance indices exceed a corresponding predetermined threshold, determining whether a health condition of the disk is normal based on at least one or more performance indices; and in response to determining that the health condition of the disk is normal, determining a failure location based on the health condition information of at least one or more elements in a communication path of the disk, and it may be diagnosed whether a failure occurs to the disk per se or in its communication path, and before a potential failure occurs to the disk, it may also predict the failure thereby preventing data loss.

Abstract: Embodiments of the present disclosure provide a method, a coalescing configuration engine, a coalescing configuration tool and a file system for a storage system, and comprises at least one initiator, each initiator accessing a corresponding storage space in the storage system via at least one virtual logic unit number LUN by executing in parallel a plurality of configuration operations, wherein each configuration operation is used to configure a mapping relationship between the at least one virtual LUN and the at least one initiator.

Abstract: Various embodiments of the present disclosure provide a method and apparatus for monitoring health condition of a hard disk by obtaining full-dimensional characteristics associated with the hard disk, wherein the full-dimension characteristics comprise at least two of: hard disk performance information, data integrity information, input/output I/O correctness information, and a hard disk Self-Monitoring Analysis and Reporting Technology S.M.A.R.T. report, and determining the health condition of the hard disk based on the full-dimension characteristics.

Abstract: Embodiments of the present disclosure relate to a method, a computer program product and apparatus for management of a storage device by collecting bad storage units to be reconstructed in the storage device; determining a reconstruction priority level for each of the collected bad storage units; and scheduling reconstruction of the bad storage unit based on the determined reconstruction priority level.