85 results about "Recovery record" patented technology

A computer system has (1) an array of data storage devices, (2) an operating system stored on a RAID device and (3) a RAID controller. In response to detection of a computer system failure, the RAID device configuration is automatically restored. A system back-up memory stores a recovery record of physical drive to logical drive mapping for the RAID device. The RAID controller enables the recovery record to be processed in response to detection of a system failure. In response to computer system failure detection, the recovery record information restores the RAID array configuration. Following system failure, a computer system manager instigates the procedure by pressing a button.

The file system of a hard disk or optical disc may lose consistency when an unexpected event like a power failure occurs during recording. When recording a data stream, e.g. a video stream, an interruption would lead to a loss of stream data when previously known methods are used, because the file system is not updated. Further, the storage medium may become unusable. Dedicated file system data are put in regular intervals in user data fields of the data stream, providing the possibility to recover an interrupted stream recording. The method can also be used to recover data streams recorded on write-once discs, and it is independent from the used file system.

In a video disk recording/playback device for converting a digital video signal or the like into high-efficiency coded data and recording the coded data on a video disk, or for restoring high-efficiency coded data recorded on the video disk and reproducing an output image, wherein said digital video signal is composed of a succession of video signals of a plurality of frames and including an I picture encoded within a frame, a P picture interframe coded by forward motion compensation with reference to said I picture and/or another P picture, and a B picture interframe coded by motion compensation in both directions with reference to said I and/or P pictures temporally preceding and succeeding the B picture, there are further provided a means for recording in an image information table set up on said video disk all of the start addresses of coded data representing selected images such as images to be retrieved and the start addresses of data containing information required for reproducing the coded data. With the above configuration, retrieval of all kinds of images of I, P, and B pictures is possible by recording all of the start addresses of coded data representing selected images such as images to be retrieved and the start addresses of data containing information required for reproducing the coded data in the image information table on the video disk.

An operation for recording a recording signal onto a disk (1) is interrupted, when an amount of signal data stored in a buffer RAM (11) for temporarily storing the recording signal is less than an interruption setting value during performing of the recording operation. Moreover, when the amount of signal data stored in the buffer RAM (11) increases and indicates a resumption setting value, the signal recorded on the disk (1) before interruption is reproduced, and the recording operation is resumed based on the reproduced signal. Moreover, recording properties are detected by the signal reproduced before resumption of recording.

When a data recording process fails to normally complete on an information recording medium, for example, because of a power interruption, a record controlling apparatus resumes recording immediately when power is turned back on, while protecting data that was recorded prior to the power interruption. The record controlling apparatus acquires, from a file system, a list of files that underwent a simple-salvage process, generates a tentative file name unfound in the list, and then generates a file with that tentative file name having, as the content thereof, data recorded in an area indicated by a new allocation area allocation descriptor contained in backup information in a backup memory. The file system that is updated with the generated file is recorded onto an optical disk as the information recording medium. The backup information is then deleted from the backup memory. The record controlling apparatus finds applications in video cameras, video recorders, etc., each of which uses an information recording medium with a file thereof managed by a file system.

The present invention relates to a method of recovering blocks of data recorded on an optical record carrier in case of a power failure affecting a recording and reproducing device. Said device comprises means for writing a recording indication information on the optical record carrier to indicate that a recording has started, said recording indication information including a recording start address, and means for overwriting the recording indication information at a recording end. After a power failure, if a recording indication information is written on the optical record carrier, then the recording and reproducing device is able to determine that a recording has not ended properly. In these conditions, said device is able to parse the recorded data, starting from the recording start address, in order to find the end of the improperly ended recording.

The method includes steps: (1) equipment detects out fault or fault recovery; (2) equipment stores specific alarm message or log of fault recovery in time of recovering fault; (3) equipment reports alarming notification to administrative experiment; (4) administrative experiment obtains specific alarm message. The invention also discloses a system for realizing alarm of telecomm network, and method for sending log notification and handling log. Administrative experiment can obtain alarming instance occurred at terminals at first time. The administrative experiment can obtain all alarming instances including recovered alarm and not recovered alarm at terminals so as to guarantee accuracy of alarm. Features are: less amount of interactive information between administrative experiment and terminal device so as to avoid alarm storm; through diversified strategies, administrative experiment obtains alarm messages so as to raise flexibility to handle alarms.

This invention describes a novel coding and implementation techniques for high-speed high-density optical disk data storage. Multiple narrowband spectral beams, either coherent or non-coherent, are combined together by optical fiber couplers or lenses assembly and are then focused into a photosensitive film with diffraction limited spot size through a specially designed hybrid diffractive/refractive lens with extended depth of focus, so that the beam size remains diffraction limited size in the whole depth of the recording medium volume. Multiple reflection gratings which are respectively corresponding to these used spectral bands are recorded in the medium through interferences between the incident beams and the reflected beams from a reflection mirror which is attached at the back surface of the recording film. The reflected beam from the reflection mirror can also be replaced by a second focused beam (without using reflection mirror) with the beam splitted using an optical fiber splitter from the incident recording beam and using an identical lens with the same extended depth of focus property. By using white light to readout these gratings, using a spectrometer or multi-wavelength reader to acquire the reflected light, and using algorithms to analyze the spectrum, the recording information is recovered.

When data is recorded on an optical disc capable of recording information only once, such as a DVD-R and the like, encrypted data obtained by encrypting the recording data and a key for decrypting the encrypted data are generated, and they are recorded in different areas on the recording medium. When the data recorded by the recording method is erased, only a key portion in a file including the key for decrypting the encrypted data is physically made a defect, or is registered as the defect by a defect management system. Thereby, since the key portion becomes unreadable, it becomes impossible that the recording data is restored by decrypting the encrypted data. Therefore, the recording data can be substantially completely erased.

Described is an approach for recovering the failure of a transaction. According to the approach, a first change and a third change is made to a first resource and a second change is made to a second resource. The second change was made after the first but before the third. However, to recover the failure of the transaction, a recovery record for the third change is applied before the recovery record for the second change. Also described is an approach involving establishing links that link together a set of undo records that contain changes made to the particular resource. Also described is an approach for applying two or more undo records in parallel.

A method of controlling a RAID system including a plurality of disk devices is provided. The method allows for reading data recorded onto an area adjacent to an area where a write error occurs when the write error is detected while data is written into the disk device. When an error is detected from the data read from the adjacent area, the data recorded onto the adjacent area is restored by using a RAID function and the restored data is written into the adjacent area.

A workpoint adjusting method of straightening exocoel laser is provided, the processes are that: firstly, the output light efficiency of the straightening exocoel laser is nominal output efficiency; secondly, the temperature of a tube core is adjusted to make the output light wavelength reach the nominal wavelength; thirdly, the corresponding adjustment quantity value of the tube core when reaching the nominal wavelength in the previous step; fourthly, testing process; fifthly, if the temperature of middle tube core is correct, when reducing the temperature of the tube core in single direction continuously, the changes of the wavelength is linetype, if the temperature of the tube core is correct, otherwise, incorrect; sixthly, if the temperature of the tube core is correct, the recording value is recovered; if incorrect, returning to the second process; seventhly, the extinction ratio of the laser is adjusted. An adjusting device which is composed of a straightening exocoel laser, a laser drive circuit, an automatic control circuit and an automatic efficiency control circuit is provided. Aiming to the characteristic relation between the temperature of the tube core and the wavelength of the straightening exocoel laser, the adjusting processes are provided, therefore ensuring the transmission performance and the adaptation on light transmission system.

The invention discloses a disaster recovery, migration and recovery method for a Kubernetes cloud native application, and belongs to the technical field of cloud native. The method comprises the following steps: initializing a system into a main cluster, creating a series of self-defined resources and related controllers, if an error occurs, conducting retrying until no error occurs, and enteringthe next step; by an object controller, storing the kubernetes object to the Minio through an API of the Minio, and storing the PV data to the Minio in a backup manner through restic; by the controller, storing all the information into the etcd through the kube-apiserver, monitoring a timing task, and if a related timing task exists, creating a corresponding backup record BackupLog or recovery record RestoreLog; storing the information into the etcd through the kube-apiserver; and then triggering the corresponding controller to process the information by the kube-apiserver. According to the invention, the application disaster recovery function can be precipitated to a platform layer, and the application disaster recovery cost and the influence of production problem positioning on servicesare reduced.

The invention provides a method and a device for backing records up in a mobile terminal. The method comprises the following steps of: according to a received record backup instruction, comparing the records in a to-be-backed-up record set of the mobile terminal with those in a backup record set one by one; judging whether the records are the same according to record comparison identifiers; and if the records identical with those in the to-be-backed-up record set exist in the backup record set, backing up the records in the record set with relatively higher priority according to preset record priorities, and performing the backup on the records, different from those in the backup record set, in the to-be-backed-up record set. The invention also provides the method and the device for recovering the records in the mobile terminal. Through the methods and the devices of the invention, repeated records can be merged and processed, the different records can be backed up or recovered, and the identical records in the record set with the relatively higher priority are backed up or recovered, so the utilization rate of a memory space and record backup efficiency are improved and the integrity of the recovered records is improved.

The invention relates to an index-based smart card record backup and recovery method. The index-based smart card record backup and recovery method achieves a backup and recovery function by arranging an index area and a backup area inside a smart card. The index area stores index numbers and is used for computing the write-in address locations of corresponding records. For a specific sort of fixed-length records, when the starting address of a record area is fixed, the index number of every record and the starting address of the record are in a one-to-one relation. The backup area contains a front protection mark, a record length, a currently-latest effective record address, a recovery record address and a rear protection mark. Whether to perform record recovery can be determined according to the protection marks, when new record writing fails and the record recovery is required, a previous effective record can be restored according the two stored addresses and the record length. The index-based smart card record backup and recovery method replaces backup recording with backup indexing, thereby greatly reducing the number of bytes written in during every backup, improving the transaction efficiency of the smart card and reducing the damage rate of the backup area.

The invention relates to a medicine distribution recording system and method for a clinical test. The medicine distribution recording system comprises a medicine distribution box, a controller and a management set unit, wherein the medicine box is provided with the controller; the controller is in a connection with the management set unit via a signal line or a wireless signal; the medicine distribution box comprises a plurality of cavities; the cavity is provided with a lid; an electronic lock is mounted between the lid and the cavities; an electronic lock controller, a microprocessor, an information storage unit, a wireless signal emission unit, an electronic map unit, a clock and an acousto-optic alarm device are disposed in the controller; the controller is equipped with a touch display screen, an electronic reader, a medicine information scanning reader, an image catching device and an audio recording device. The beneficial effects of the medicine distribution recording system and method are that careful medicine distribution and recovery records can be automatically recorded during the test; information of researchers or medicine dispensing persons can be recorded; testee body conditions and feelings after medicine taking can be directly recorded into the system by the researchers; and labor intensity of the researchers can be effectively reduced.

The invention discloses a method for recording log data, which comprises the following steps: A, predetermining the lengths of measurement periods and starting one measurement period; B, monitoring accumulated flow of the log data in real time in the current measurement period; C, judging whether the accumulated flow of the log data in the current measurement period is greater than a predetermined throttle flow threshold, if so, stopping recording the log data which are recorded currently and are of the lowest level according to predetermined levels of the log data, starting a new measurement period and returning to execute the step B, if not, executing a step D; and D, judging whether a predetermined restoration condition is satisfied, if so, restoring to record log data of all levels, if not, returning to execute the step B. By using the method provided by the invention, when a communication device is in abnormal condition, the retention time of the log data is prolonged effectively, thereby facilitating fault location of the communication device.

A droplet ejection apparatus comprises: (a) a recording head including a nozzle from which a droplet of a liquid is ejected, (b) a pressure chamber which is filled with the liquid and whose volume is changeable for ejecting the droplet from the nozzle, and (c) an actuator which changes the volume of the pressure chamber by a drive pulse inputted thereto; and an operating device which outputs the drive pulse to the actuator and which is capable of performing a restoring operation for restoring a droplet ejection performance of the recording head. The restoring operation includes: a first operation for outputting, a plurality of times, an ejection drive pulse as the drive pulse by which the droplet can be ejected; and a second operation for outputting, a plurality of times, a non-ejection drive pulse as the drive pulse by which the droplet can not be ejected, the second operation being performed following the first operation.

An optical disk apparatus including a waiting position determining circuit which detects physical properties of each region in an optical disk after recording or reproducing processing is finished and decides a waiting position of an optical head according to the detection, and various kinds of control mechanisms which controls a position of the optical head according to the decided waiting position in order to move the optical head, is provided. By making the optical head wait at a position before two or more tracks in an unrecorded region, the recording processing can be resumed stably and surely and the recording processing can be preferentially performed in the remaining unrecorded region.