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129 results about "Virtual mirror" patented technology

Storage backup system for backing up data written to a primary storage device to multiple virtual mirrors using a reconciliation process that reflects the changing state of the primary storage device over time

The present invention is directed toward the resumption of a journaling process in a data management appliance after a period of unavailability. The data management appliance is a random-access storage system that at the logical block level replicates the contents of a primary storage system over time. A small “dirty extent map” is established on the primary storage device. The dirty extent map keeps track of which portions of primary storage are written to while journaling is interrupted. When journaling is resumed, the contents of the dirty extents are compared to the latest replica of the primary storage to identify the differences. These differences are then journaled as if they were write commands. Meanwhile, new write commands are also journaled by the data management appliance. Once the differences of all of the dirty extents have been journaled, the data management appliance may resume normal journaling operation.
Owner:ORACLE INT CORP

Perspective altering display system

The perception of a displayed image is altered for viewers moving relative to the position of the display system screen, thereby imparting a sense of three-dimensional immersion in the scene being displayed. A display generator generates a scene having foreground and background elements, and a display screen displaying the scene. A sensor detects the position of a viewer relative to the display screen, and a processor is operative to shift the relative position of the foreground and background elements in the displayed scene as a function of viewer position, such that the viewer's perspective of the scene changes as the viewer moves relative to the display screen. The foreground and background elements may be presented in the form of multiple superimposed graphics planes, and / or a camera may be used to record the scene through panning at sequential angles. The system may be used to implement virtual windows, virtual mirrors and other effects without requiring viewers or users to modify behavior or wear glasses, beacons, etc.
Owner:VIDEA

User-side energy equipment intelligent maintenance method

The invention provides a user-side energy equipment intelligent maintenance method. The method comprises the following steps of obtaining the all-dimensional data of all energy equipment through an Internet of Things sensor system; adding the analog data into a digital model pre-stored in a cloud platform to obtain a digital virtual mirror image of the building energy system, and performing analogoperation and maintenance operation by operation and maintenance personnel based on the digital virtual mirror image to obtain the analog operation and maintenance data; extracting the key data fromthe simulated operation and maintenance data, carrying out abnormal point elimination on the key data, and analyzing the key data by utilizing a big data analysis algorithm to obtain relevant data ofthe equipment health degree portrait; carrying out the abnormal attribute classification according to the equipment health degree portrait to determine specific information of the fault hidden dangerand output corresponding alarm information, and using the cloud platform to update the fault decision tree model according to all data associated with the fault handling operation. The method has thebeneficial effects that the operation and maintenance cost is reduced, and the operation and maintenance efficiency is improved.
Owner:北京快电科技有限公司

Virtual machine thermal migration method, device and system, storage medium and equipment

The invention discloses a virtual machine thermal migration method, device and system, a storage medium and equipment. The method includes: sharing the source disk data of a source virtual machine on a source physical machine to a target physical machine, and forming a virtual mirror image of the source disk data on the target physical machine; building a target virtual machine on the target physical machine, wherein the configurations of the target virtual machine and the source virtual machine are identical; migrating the internal memory data and the state data of the source virtual machine to the physical machine; starting the target virtual machine according to the virtual mirror image, the internal memory data and the state data; judging whether the target physical machine needs to be reselected or not according to the operation states of the target physical machine and the target virtual machine; setting the disk snapshot of a sharing mirror image on the target physical machine according to the virtual image; combining the source disk data of the source virtual machine into the disk snapshot of the target virtual machine; removing the corresponding settings of the sharing storage technology from the source physical machine and the target physical machine.
Owner:UCLOUD TECH CO LTD

Software test system and software test method

The invention discloses a software test system and a software test method. The software test system comprises one or more array servers, one or more test servers, a central server and a communication module, wherein the one or more array servers are used for storing virtual mirror image files corresponding to different test environments, and the test environments comprise operation systems and corresponding application programs; the central server is used for receiving and storing to-be-tested software and to-be-tested test environment information, and loading and operating the corresponding virtual mirror image files stored in the array servers in one or more test servers according to the test environment information; the communication module is used for loading and operating the virtual mirror image files in the corresponding test servers, communicating with the central server, loading the to-be-tested software from the central server, and operating the to-be-tested software in the test servers. According to the software test method disclosed by the invention, in the whole test process, no test staff participates, so that many manual operations are avoided; and meanwhile, the testers and the test environments are not needed to be in one-to-one correspondence, so that the software test method is relatively flexible to realize.
Owner:BEIJING QIHOO TECH CO LTD +1

An intelligent laboratory management system based on internet of things

The invention provides an intelligent laboratory management system based on the internet of things, which comprises a field equipment layer, a network layer, an internet of things platform and an IDMsystem connected in turn. The field device layer comprises a sensor, a traditional device instrument and an intelligent device instrument; the network layer comprises an Internet of Things communication module and a gateway, wherein the Internet of Things communication module is arranged on the traditional equipment and instruments to construct communication capability for the traditional equipment and instruments and an access gateway unified communication protocol, and the sensor and the intelligent equipment and instruments access gateway carry out communication protocol encapsulation; theIOT platform analyzes different communication protocols through the network layer to uniformly manage the field device layer, and simultaneously establishes a virtual mirror image for each device andprovides a unified API. The IDM system and the Internet of Things platform interact with each other through the API to carry out experiment management and execution operation on all devices. The invention overcomes the defects of non-automation of the control of the existing laboratory equipment, non-informationization of the experiment management and non-sharing of the resource management.
Owner:OPTOTRACE SUZHOU TECH

Cloning method of virtual machine in network file system and network file system

The invention discloses a network file system that comprises at least one virtual machine running on at least one host computer. A virtual mirror image file of the virtual machine stored in the network file system is composed of a file head of metadata for describing data characteristics of a mirror image file format and main data. When the first virtual serving as one virtual machine is cloned into a second virtual machine, whether the mirror image file format of the first virtual machine is same as that of the second virtual machine is judged. When the mirror image file format of the second virtual machine is different from that of the first virtual machine, only the file head of the virtual mirror image file of the first virtual machine is converted, and the file head obtained after the conversion and the main data of the virtual mirror image file of the first virtual machine serve as a virtual mirror image file of the second virtual machine.
Owner:HITACHI LTD

Virtual machine security protection method and apparatus

The present invention provides a virtual machine security protection method and apparatus. The method comprises: pre-determining a key mirror file to be measured in a virtual machine mirror, and pre-configuring a security measurement module; and further comprises: S1, loading a current virtual mirror of a current virtual machine; S2, calling the security measurement module via a Libvirt interface, and measuring a current key mirror file in the current virtual machine mirror using the security measurement module; and S3, determining, according to a measurement result of the current mirror file, whether to enable the current virtual machine. The virtual machine security protection method and apparatus provided by the present invention can protect security of the virtual machine.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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