36results about How to "Avoid unrecoverable" patented technology

The invention discloses a solid-state disk and a data processing method and system thereof. The method comprises the following steps of: detecting an operation, for a first storage area visible to anoperation system, of a user on the solid-state disk; if the operation is a reading / writing operation, keeping data synchronization between the first storage area and a mirror image data storage area of a second storage area invisible to the operation system on the solid-state disk; and if the operation is a deletion operation or a TRIM operation, keeping data synchronization between the first storage area and the mirror image data storage area of the second storage area, and backing up data deleted from the first storage area to a deleted data storage area of the second storage area. Through the second storage area invisible to the operation system, the problem that data cannot be recovered due to malicious data deletion or wrong operation can be avoided, and by utilizing a flash memory controller, data backup and recovery can be carried out on data in the solid-state disk.

The invention provides a method and a device for file smashing and belongs to the technical field of computers. The method includes receiving a smashing request, for a to-be-smashed file, of a user, and setting survival time for the to-be-smashed file; monitoring whether a restoring request, for the to-be-smashed file, of the user is received within the survival time or not; if yes, restoring the to-be-smashed file, and if not, executing a smashing operation on the to-be-smashed file. By the method and the device, the user can get buffering time for restoring a smashed file after the file is smashed, so that the problem that the smashed file cannot be restored due to misoperation of the user is avoided, and loss caused by the problem to the user is lowered.

The invention provides a method and a device for file smashing and belongs to the technical field of computers. The method includes receiving a smashing request, for a to-be-smashed file, of a user, and setting survival time for the to-be-smashed file; monitoring whether a restoring request, for the to-be-smashed file, of the user is received within the survival time or not; if yes, restoring the to-be-smashed file, and if not, executing a smashing operation on the to-be-smashed file. By the method and the device, the user can get buffering time for restoring a smashed file after the file is smashed, so that the problem that the smashed file cannot be restored due to misoperation of the user is avoided, and loss caused by the problem to the user is lowered.

The invention discloses a calibration device of a middle groove of plate scraping machine and a calibration method thereof. The calibration device comprises a two-way hydraulic oil cylinder, wherein the end of a cylinder rod of the hydraulic oil cylinder is connected to a support seat via a rotation pin; the support seat is movably arranged in the middle groove and is limited left and right; the tail end of a cylinder barrel of the hydraulic oil cylinder is connected to an inverted U-shaped clamping groove; the U-shaped clamping groove is clamped to a pin rail pin fixing plate at the upper end of the right side of the middle groove. According to the calibration device, the U-shaped clamping groove is clamped to the pin rail pin fixing plate at the upper end of the right side of the middle groove; the bent part of the pin rail pin fixing plate can be calibrated by extension and shrinkage of the two-way oil cylinder; the calibration device is convenient and rapid in calibration; time and labor are reduced; the calibration efficiency is high; the damage to equipment and the injury to staff can be avoided; the safety is higher; the calibration flatness is higher; the calibration device also has the characteristics of simple structure, low cost and convenient and rapid in operation and maintenance.

The invention discloses an application method of a block chain technique to a secondary water supply facility. The secondary water supply facility comprises a plurality of secondary water supply pumprooms, each secondary water supply pump room comprises a community monitoring central control room and a safe water tank, each community central control room is provided with a local memory, the secondary water supply pump rooms serve as cloud nodes, all data corresponding to the local memories are uploaded to a cloud end through a network to perform cloud storage, data corresponding to all cloudnodes except for local cloud nodes are simultaneously backed up by the cloud nodes by the aid of the network and the block chain technique, and the local memories and the data stored by the cloud endsare encrypted. According to the method, an anti-terrorism security architecture of key data in secondary water supply process is achieved by the aid of the block chain technique, wherein the key datacannot be amended and destroyed and can be recovered and traced, data safety is improved, and the method avoids the problem that the data cannot be recovered due to unrecoverable terrorist attack.

The embodiment of the present invention discloses a mileage backup method, device and vehicle, which relate to the technical field of automotive electronics. The backup method adopted in the embodiment of the present invention does not require a diagnostic instrument, is easy to operate, and can avoid errors in checking for faults in the replacement mode used in the market. Backing up the mileage of the spare part leads to unrecoverable problems. The mileage backup method includes: after the vehicle is powered off, the controller stores the meter mileage data sent by the meter when the vehicle is powered on as the controller mileage data locally; When the trigger signal of the button is triggered, the mileage backup signal is sent to the meter, and the controller mileage data stored locally is sent to the meter, and then the meter sends the controller mileage data sent by the controller to the mileage backup signal. data storage.

The invention discloses a read-only snapshot rollback method and device, which are used to solve the problem that part of the read-only snapshot data cannot be obtained after the read-only snapshot is rolled back during the rollback process of the read-only snapshot. The method is, after receiving the rollback instruction of the read-only snapshot, obtain the root of the target read-only snapshot based on the rollback instruction of the read-only snapshot, replace the root of the file system with the root of the target read-only snapshot, and make the target read-only snapshot Roll back to the file system, and retain the read-only snapshots at all creation times after the creation time corresponding to the target read-only snapshot. By adopting the technical solution of the present invention, after the target read-only snapshot is rolled back to the file system according to the user's instructions, the read-only snapshots at all creation times after the creation time corresponding to the target read-only snapshot are retained, effectively preventing data loss caused by user misoperation. After the read-only snapshot is rolled back, the user can quickly obtain the required read-only snapshot, thereby effectively improving the operability of the system.

The invention discloses a data recovery method, system, terminal device and storage medium of a production center. The method includes: acquiring the data status of a host room corresponding to the production center, and determining the operation of the production center based on the data status If the operation state is abnormal operation, obtain the first self-check status data of the same-city disaster recovery center; based on the first self-check status data, determine the data recovery method, and realize data recovery through data backup. The invention can determine the corresponding data recovery method based on the different states of the same-city disaster recovery center, which is helpful to realize the full and efficient protection of data and realize fast data recovery, and can also avoid the damage of the same-city disaster recovery center, which causes the data to be unrecoverable. The problem.