40results about How to "Realize online migration" patented technology

The invention discloses a data migration method and device used for a database. One specific implementation way of the method comprises the following steps: establishing the mirror image of a source database, migrating total-amount data in the mirror image into a target database, and detecting incremental data in the source database; migrating the detected incremental data to the target database; and when all the incremental data in the source database is migrated to the target database, switching the read and write operation of the database to the target database from the source database. The implementation way realizes on-line data migration between the databases.

The invention provides a method for on-line migration of a database, The source database reads all the data blocks and all the changed data blocks in the source database on line, synchronizes them tothe target database, writes the data blocks to the local data file by the target database, and adds, deletes and modifies the data blocks locally by the target database, so as to achieve the consistent state with the source database. If across operate system platforms, Migration of file types, A target library-side database complete that conversion and writes the data block into a target databasedata file, Moreover, the invention also provides a device for online migration of a database, which not only can realize online migration of the database, but also can realize online migration of thedatabase across operating system platforms and across data file types, thereby reducing service interruption time, improving migration efficiency and lowering technical requirements for database migration engineers.

The invention relates to an on-line migration method of a virtual machine in a wide area network under future network NDN (Named Data Network). The method comprises the following steps: a migration data sending side writes migration data of the virtual machine into a standard input stream, and packages the data into a data message to be issued in a content buffer area; a migration data receiving side requests the migration data sending side for data, the migration data sending side inquire the data from the content buffer area and sends the data to the migration data receiving side; and the migration data receiving side receives the data message, analyzes the data and writes the data into a standard output stream, and the virtual machine reads the data from the standard output stream and is loaded. Compared with the prior art, the on-line migration method of the virtual machine in the wide area network under future network NDN realizes on-line migration of the virtual machine in the wide area network under the NDN network, enables applications on the virtual machine to be kept continuous in the migration process of the virtual machine, realizes seamless migration of the virtual machine, ensures the network to be unimpeded through a dynamic self-adaptive mechanism after the migration is completed, and is of great significance to cloud computing and load balance of the future network NDN.

The invention discloses a storage online migration method and device of a virtual machine. The storage online migration method of the virtual machine comprises the steps of establishing an external snapshot for a storage file of the virtual machine, wherein the virtual machine reads data from the exterior and writes data in the external snapshot after the external snapshot is established; copying the storage file from a source storage pool to a target storage pool; assigning a basic mirror image file of the external snapshot as a storage file copied to the target storage pool, and block-committing the storage data in the external snapshot to the storage file in the target storage pool; and enabling the virtual machine to read data from the storage file in the target storage pool and writing data in the storage file. According to the storage online migration method and device of the virtual machine, an internal snapshot in the storage file can be copied into the target storage pool, and the internal snapshot cannot be lost.

The invention discloses an LV mirror image-based method for realizing data backup, recovery and migration in a linux system, in the linux system, through an LVM mirror image technology, data in one PV are backed up into an LVM mirror image file and are further recovered and migrated into the other PV, a new backup is realized or the original PV is replaced. Through the LVM mirror image technology, online migration of the data among different PVs is realized, so the management of the data on a linux platform is more convenient, more flexible and safer.

The invention provides a Hbase data online migration method and device. The method includes the steps that from a first moment, data of a first cluster is mirrored to a second cluster; at a second moment after mirroring is ended, bilateral synchronization of the first cluster and the second cluster is started, and updated data of the first cluster and updated data of the second cluster after the second moment are synchronized between the first cluster and the second cluster; updated data of the first cluster in the time period from the first moment to the second moment is copied to the secondcluster. Under the condition that write access of an original cluster is not stopped, data online migration of uninterrupted services is achieved.

The invention discloses an on-line migration method of a virtual machine. The method comprises the steps of pretreating a source server and a target server before migration; completely copying current stored data of the virtual machine to the target server; when a change scale of the current stored data of the virtual machine and stored data in the last circulation reaches to the preset standard, copying a current dirty page into the target server until the number of the current dirty pages of the virtual machine is smaller than a preset value; stopping the source server, and copying a dirty page of the last circulation and a current working state of the source server into the target server; controlling the virtual machine to migrate to the target server from the source server. The stop time required by the method provided by the invention is the time consumed for copying the dirty page in the last circulation, so that compared with the prior art, at the earlier stage of stop, the virtual machine cannot be influenced to provide service to a user through the method, and the stop time is greatly reduced. In addition, the invention also provides an on-line migration device of the virtual machine with the same effects.

The invention provides a storage device data online migration method and system, a terminal and a storage medium. The storage device data online migration method comprises the steps: backing up back-end storage data of a to-be-migrated operating system; unbinding the volume of the to-be-migrated operating system from an original storage device by setting an FC port of the original storage device,and mapping the volume of the to-be-migrated operating system to a target storage device; mapping the volume migrated to the target storage device to an operating system of the target storage device by scanning the external storage; transferring the multi-path software of the operating system to be migrated and configuring the operating system of the target storage device; and migrating the backupdata from the original storage device to the target storage device. According to the method, online migration of the data between the storage devices can be realized, downtime in the data migration process can be avoided, and data loss is avoided.

The invention provides a storage volume online migration method and device and a storage volume online migration system. The method comprises the steps of receiving a migration instruction; migratingdata of source volume to target volume according to a migration instruction; under the condition that a business writing instruction is received in the migration process, synchronously writing the business data into the source volume and the target volume; and under the condition that all data of the source volume is migrated to the target volume, converting the execution object written with the business instruction from the source volume to the target volume, and deleting the source volume. According to the method, in the data migration process, the business data is synchronously written intothe source volume and the target volume, so that the execution of the business instruction is not interrupted, the online migration of the storage volume is realized, and the problem that the onlinemigration of the storage volume cannot be realized in the prior art is solved.

The invention relates to a method for realizing online migration based on a bidirectional pipeline manner under NDN (Named Data Networking). The method comprises the following steps: (1) a name space design step in the NDN: three name spaces used for naming a data packet are determined; (2) a bidirectional pipeline communication manner: a bidirectional pipeline communication data packet passes between a data requiring party and a data sending party; the bidirectional pipeline communication manner comprises an inverted sequence and packet dropout processing: a caching region for preserving Data which reaches in advance due to the inverted sequence or is produced in advance is set, and the Data is obtained again by adopting a retransmission timeout mechanism; when the time is out for multiple times, a request is done again by adopting a sub-package manner; and (3) a performance testing step. Compared with the prior art, the online migration of a virtual machine of a local area network and a wide area network under an NDN network is realized, so that the application on the virtual machine keeps continuous in the migration process of the virtual machine, and the seamless migration of the virtual machine is realized; by the aid of a dynamic self-adapted mechanism, the network is smooth after the migration is finished.

A real-time online cloud migration method of an autonomous controllable operating system comprises the following steps: S1, developing and customizing a disk I/O filter driver and an I/O data networktransmission module according to version characteristics of a domestic operating system; and S2, performing data reading in combination with a disk block level and an operating system driver layer. Adisk block level and an operating system driving layer migration technology are combined, customization is carried out according to a specific kernel and a driving interface of a domestic security operating system, a mainstream autonomous controllable security system in China at present is supported, and a P2P system, a P2V system, a V2V system and a V2P system are supported. In the invention, thesystem can realize smooth migration between various hardware platforms and various virtualization platforms. The system mirrors all data of the whole system to various private clouds or public cloudswithout shutdown in a production environment, the smooth data migration process is safe and controllable, and real online migration is realized.

The invention relates to a data online migration method and device, electronic equipment and a storage medium, and belongs to the technical field of data processing. The method comprises the steps that when a first business device is controlled to provide a transaction service, to-be-migrated data is determined, and the first business device corresponds to a first database; initializing and migrating the to-be-migrated data from the first database to a second database, wherein the second database corresponds to a second business device; and after the to-be-migrated data is initialized and migrated from the first database to the second database, controlling the second business device to provide a transaction service to the outside. According to the technical scheme, online migration of the data between the databases can be achieved, the efficiency of data migration between the databases is effectively improved, in addition, due to the fact that the corresponding service devices are still controlled to provide the transaction service externally in the migration process, the influence of data migration on the transaction service can be effectively reduced, and online non-stop migration is achieved.

The invention discloses a method and a device for realizing online migration of a distributed storage volume; the method comprises the steps: building a real logical volume in a storage pool for storing business data, building an RAID 1 relation R1, virtualizing a logical volume as virtual equipment of the R1, mapping the logical volume to a business system, enabling one mirror image in the R1 to point to the built real logical volume, and not designating the other mirror image at this time; then along with the continuous development of the business, when the requirement of the business for the read-write performance is not matched with the performance of the storage pool, creating a new logical volume with the same size on the migrated storage pool, then pointing the other mirror image of R1 to the new logical volume, triggering the data synchronization operation of R1, and synchronizing the business data stored in the original logical volume to the new logical volume; after synchronization is completed, offlining and deleting the original logical volume from the R1. Data migration is carried out on the basis of the RAID 1 data synchronization function, operation is easier, service pause cannot be caused in the operation process, and the operation risk is reduced.