24 results about "Magnetic disks" patented technology

A method, information processing system, and computer program storage product for managing disk failures in a disk array. At least one disk in a first disk array is determined to have failed. The first disk array only accesses data by reading an entire stripe that is distributed across multiple disks in the first disk array. A number of spare disks are selected that is equal to a number of disks making up the first disk. A second disk array is created from the number of disks that has been selected. Data is acquired from the first disk array by reading at least one entire stripe from the first disk array. A corresponding stripe comprising the data from each respective stripe that has been acquired is written to the second disk array.

A system and method for efficiently identifying track squeeze errors (TSEs) of a disk of a disk drive during a testing process for the disk drive is disclosed. The method includes reading servo bursts from a track of the disk, utilizing a modeled scan variable, and determining a gain comprising a ratio of a first matrix A and a second matrix B. TSEs associated with the SWEs of the servo bursts are determined for the track. The TSEs are determined as a product of the gain and a measured scan variable wherein the measured scan variable is calculated as being the difference between a measured scan value and an estimated nominal scan value.

The invention discloses a recycle bin for deleted files arranged in a mobile phone, which is to preset a magnetic disk space for saving the deleted files in the mobile phone with certain configuration and store the deleted file information in the recycle bin. At the same time, a program is installed in the mobile phone and a recycle bin window which is the same as that of in a computer is arranged, which can ensure that files deleted a few days ago, even a few weeks ago are recovered. Therefore, important information does not need to worry to be accidentally deleted, and information which is of no use at that time but is extremely useful now can also be got back, thereby realizing the function of the recycle bin in the mobile phone. The recycle bin has the proposal with practicability and ensures that the use of the mobile phone is more convenient.

A method and system for data redundancy, wherein method comprises storing an object in an object storage device, storing a duplicate of the object in a second object storage device, converting the object into any of a grouped object Redundant Array of Independent Disks (RAID) layout and an individual RAID layout upon growth of the object, and discarding the duplicate object. The step of converting further comprises determining which of the grouped object RAID or individual RAID layout to convert the object into based on a size of the object being converted. Moreover, the step of converting into a grouped object RAID layout further comprises selecting a group based on whether the group comprises other objects similarly sized to the object, wherein the similarly sized objects comprise variably sized objects.

When data is stored in many storage subsystems, metadata, such as a sequence number, is also generated and stored with the data. When the data is accessed, the metadata is checked to ensure that the desired data element has been accessed. In conventional storage subsystems, data elements, such as logical blocks, are stored sequentially in logical pages of each logical volume. Consequently, sequence numbers closely correlate with block positions within the physical pages and sequence number/position patterns tend to repeat frequently and access errors may not be detected. Algorithms are provided to calculate new, offset, physical block positions which reduce the close association of sequence numbers and physical positions, thereby reducing such aliasing. The algorithms incorporate the logical volume number, the logical page number, or both, in addition to the logical block number. As a result, detection of access errors becomes more likely.

The invention discloses a postoperative incision patch, the bottom layer thereof is adhesive cloth (1), a water absorption pad (2) is arranged on the surface of the adhesive cloth (1), one surface of the water absorption pad (2) is connected with the adhesive cloth (1), a permanent magnetic disk (3) is arranged on the other surface, the permanent magnetic disk (3) is the rare earth magnetic disk, trace elements for promoting the wound healing are arranged on the surface of the rare earth magnetic disk, the trace elements comprise iron element, boron element and neodymium element, wherein, the neodymium element accounts for 33 to 35 percent, the boron element accounts for 1 to 1.5 percent and the iron element accounts for 64 to 65 percent; a spunlaced nonwoven fabric layer (5) is covered on the permanent magnetic disk (3), a surface layer (6) is covered on the spunlaced nonwoven fabric layer (5), an anti-adhesion film (4) is covered on the surface layer (6), and the both sides of the spunlaced nonwoven fabric layer (5), the both sides of the surface layer (6) and the both sides of the anti-adhesion film (4) are connected with the adhesive cloth (1). The postoperative incision patch can not only promote the wound healing, but can also have the effects of alleviating pain and reducing the scar formation.

The invention provides a magnetic disk that solves (1) a problem of cross-talk that cannot be solved even by an existing thermally assisted recording method or a discrete method (DTM or the like), (2) a problem of surface flatness, which an existing embedding type DTM or the like has, and (3) a problem of a difference in thermal expansion coefficient between materials when a thermally assisted method is applied to the DTM, and that (4) does not necessitate a special medium structure, and is excellent in a surface flatness and economically and functionally high in realizability. A DTM manufactured by ion implantation is excellent in the surface flatness, and can solve the cross-talk problem by conducting the thermally assisted recording at a temperature between a Curie temperature (Tcn) of a portion where ions are implanted (non-recording region) and a Curie temperature (Tcr) of a portion where ions are not implanted (recording region).

Techniques involve receiving a write request for writing metadata of a file system into a solid state disk having a multi-level cell, and then caching the to-be-written metadata into a memory. The techniques further involve sequentially writing the cached metadata into the solid state disk by redirect-on-write. Accordingly, there is a file system implemented for properties of a solid state disk having a multi-level cell. Such techniques are able to provide completely sequential write of metadata of the file system by supporting redirect-on-write, thereby reducing the write amplification of the solid state disk and improving the performance of the file system.

The invention discloses a data storage method. The method comprises the steps of determining to-be-stored data according to an input data storage request; performing primary encryption on the to-be-stored data by using a first preset key, and transmitting the obtained encrypted data to a virtual encrypted disk; and controlling the virtual encryption disk to perform secondary encryption on the encrypted data by using a second preset key, and storing the obtained ciphertext data in the physical disk. By setting the virtual encryption disk, the virtual encryption disk is controlled to carry out secondary encryption on the encrypted data by using the second preset key after the first preset key is used for carrying out primary encryption on the to-be-stored data, and finally, the obtained ciphertext data is stored in the physical disk; therefore, the data stored in the physical disk is ciphertext data obtained after two times of encryption, and the security of data storage is greatly improved. The invention also provides a data storage system and device, and a readable storage medium, which have the above beneficial effects.

A hard disk drive bypass channel architecture incorporates enhanced cooling for voice coil motors. A cooling slot formed in a bypass channel component that is adjacent to the VCM alleviates VCM overheating problems. The slot compromises airflow from the bypass channel to provide sufficient secondary flow to cool the VCM and actuator coil area. The slot may be formed in the integrated wall of the spoiler or diverter. The spoiler has an extension in which the cooling slot is formed.

A data health monitoring system and method are provided which may be configured to monitor different indicators or parameters of a computing device which may affect the health of the computing device, such as which may be used in looking for early warning signs that could indicate future data loss or corruption. The system may periodically query certain data health indicators, such as S.M.A.R.T. status, disk temperature, read and write errors, etc. The system may also monitor data as it is being accessed keeping track of other indicators such as: files that are modified, when the last backed up was, protection status of the file, type of changes made to the file, which application is making changes, etc. Preferably, the combined status of each data health indicator may be rolled up into a simple message and shown to the user via notifications, reports, logs or a user interface.

The present invention relates to a supervision system relying on SSDB. The supervision system is divided into three levels: the bottom layer, the middle layer and the top layer. The bottom layer is composed of managed devices, each device constitutes a node, and the middle layer includes a plurality of intermediate agents. , the top layer includes two management nodes, and the management nodes adopt SSDB for management, and the SSDB is composed of MemTable in the memory, Immutable MemTable, and Log files and SSTable files on the disk; the present invention can improve data access speed, thereby improving the The monitoring strength of the large-scale computer system optimizes the monitoring performance.

The invention provides a storage space arrangement method and a configuration method of a cloud platform. The storage space arrangement method of the cloud platform is characterized by obtaining the content which is deleted in a virtual disk mirror image space but still occupies the storage space of a physical disk after comparing the storage content of the physical disk with the disk mirror image content, so that after the space occupied by the contents is removed, the actually occupied storage space of the physical disk of the cloud platform becomes continuous, and the unoccupied storage space of the cloud platform also becomes continuous, and accordingly the cloud platform still can provide continuous storage space for a virtual machine to use after running for a period of time, the scattered storage space does not need to be planned as a whole and then distributed to the virtual machines, and the speed of distributing the storage space by the cloud platform is increased.

The invention provides a magnetic disk determining method and device. According to the invention, if a history service magnetic disk stores a file corresponding to a request for acquiring the file, the history service magnetic disk is taken as a magnetic disk for responding to the request. At this moment, the service magnetic disk is not needed for tracing operation. Further, network resource occupancy is avoided and network jam is reduced.

The invention provides an object storage method, a gateway, a device and a medium. The method comprises the following steps: acquiring a to-be-stored target video file; segmenting the target video file into a plurality of objects conforming to a preset storage length, wherein the preset storage length is any segment length; creating a directory according to the number and names of the objects segmented by the target video file and the attribute of the target video file; and storing the cut objects according to corresponding paths of the inventory. According to the method, the target video file is divided into a plurality of small objects from a large file, and the objects are stored in a manner of uploading the plurality of small objects, so that on one hand, cache accumulation is avoided, and on the other hand, cache data are not stored in a local hard disk of a gateway, and the phenomenon of hard disk read-write bottleneck is avoided; and meanwhile, according to the file size, the segment length is defined at will, the storage requirements of different files are met, a large-capacity high-performance disk does not need to be arranged, the hardware cost is reduced, and the storage performance is improved.

The invention relates to the technical field of medicine dispensing, and discloses a granule medicine quick dispensing device. The granule medicine quick dispensing device comprises a box body, wherein two symmetrical cover plates are movably mounted at the lower end of the box body; an elastic plate is movably mounted at the lower end of the inner part of the box body; a separation plate is fixedly mounted at the middle end of the inner part of the box body; a fixing column is in sliding connection to the outer surface of the separation plate; two symmetrical medicine storing columns are fixedly mounted on two sides of the fixing column; and an elastic magnetic disk is fixedly connected to the inner part of each medicine storing column. According to the granule medicine quick dispensing device disclosed by the invention, through the cooperation and usage of the fixing column, the medicine storing columns and the elastic magnetic disks, the situation that two different granule medicines of fixed capacities are taken out through the medicine storing columns can be effectively guaranteed, and the medicines can be quantitatively dispensed, and then taken out, so that the phenomenon that a plurality of tablets are carelessly poured out, redundant tablets are put back in a medicine bottle only by hand, and in the process, the tablets are possibly polluted is avoided; and besides, the correctness of taken medicine capacity is guaranteed.