14 results about "Tape library" patented technology

The invention discloses an HDFS (Hadoop Distributed File System) intelligent hierarchical storage method and system based on multi-dimensional popularity perception and tape library integration, and belongs to the technical field of distributed file systems, and the method comprises the following steps: expanding HDFS metadata to construct a unified namespace; acquiring data block access features and dynamically dividing hot, warm and cold data by using a K-means clustering algorithm; executing a self-adaptive grading strategy: adding a copy to hot data and storing in an SSD (Solid State Disk), maintaining a default copy to warm data and storing in a disk, and migrating cold data to a tape library and storing by adopting an erasure code; scattered storage and fault tolerance of relevance perception are realized through a message queue; metadata persistence and periodical re-evaluation are carried out, and automatic migration and dynamic adjustment of data among the SSD layer, the disk layer and the tape library layer are achieved. By adopting the method and the system, the storage strategy and the data access value are accurately matched, the storage cost is finally reduced, and the system I / O performance and the resource utilization rate are improved.

An apparatus for tape library management. The apparatus includes a storage slot including a plurality of mirrors integrated into the storage slot for reading a barcode affixed to each of a plurality of tape cartridges stored in a layered orientation within the storage slot. The apparatus also includes each of the plurality of mirrors positioned directly below the barcode affixed to each of the plurality of tape cartridges stored in the storage slot. The apparatus also includes each of the plurality of mirrors projecting a reflection of the barcode affixed to each of the plurality of tape cartridges outwardly toward a front side of the storage slot.

The invention discloses a slot allocation method of a tape library, electronic equipment, a storage medium and a product, and relates to the technical field of data management. The method comprises the following steps: acquiring storage configuration of a tape library, dividing the tape library into storage units based on the storage configuration, and determining the number of tape units required by each storage unit; distributing a corresponding number of magnetic tape units for each storage unit to obtain a magnetic tape unit set of each storage unit; based on the magnetic tape unit set of each storage unit, calculating the distance from each magnetic tape slot position to each storage unit to obtain a slot position storage distance set; obtaining a storage instruction of the tape library, wherein the storage instruction comprises a to-be-allocated storage unit and a corresponding required tape slot position number; and allocating the unallocated tape slots with the required number of tape slots with the distance smaller than a preset threshold in the slot storage distance set of the to-be-allocated storage unit to the to-be-allocated storage unit. Through the technical scheme of the embodiment of the invention, the time for accessing the tape in the tape slot position can be shortened, and the working efficiency of the tape library is improved.

The invention discloses an addressing reading method, an addressing writing method and a magnetic tape system, and relates to the technical field of magnetic tapes. The problems that a mechanical arm in a tape library needs to move a tape cartridge, and after the tape cartridge is aligned with a magnetic head, the magnetic head accesses a tape in the tape cartridge, so that the read-write delay is too high, and the data access efficiency of the tape library is low are solved. For a tape system in which the same data is stored in different tape medium memories in a multi-copy form for backup, after a read request is received, a first tape medium memory of which the access duration is less than or equal to a threshold value is selected from a plurality of tape medium memories, and a read instruction is sent to the first tape medium memory; therefore, the target data can be read, the tape cartridge does not need to be moved, the time delay caused by alignment of the magnetic head and the tape is reduced, and the access efficiency of the tape system is improved.

The application discloses an archiving log processing method and system, when a database backup task is started, the number of backup channels is increased or the number of archiving processes is reduced according to the importance of the database system, so that the speed of generating the archiving log is slowed down, the archiving log is timely backed up to the tape library during the time of the archiving log generation peak, the archiving space of the database is released, and the risk of long-time non-response of the database caused by the full archiving space of the database is avoided. In addition, during the time of the archiving log generation peak, the archiving log is timely backed up to the tape library, the archiving log backup operation does not need to be frequently performed, the performance of executing the database business can be avoided from being affected by the frequent backup operation, and thus the efficiency of executing the database business is improved.

The invention provides a multi-mechanical-arm tape library, a tape moving method, electronic equipment and a readable storage medium. The multi-mechanical-arm tape library comprises a tape library control module, a task scheduling module, a plurality of cabinets, a first mechanical arm, a second mechanical arm, a first mechanical arm control module, a second mechanical arm control module, a first horizontal track and a first vertical track corresponding to the first mechanical arm, and a second horizontal track and a second vertical track corresponding to the second mechanical arm. The first horizontal track and the second horizontal track are located at preset positions in the multiple cabinets in parallel and extend in the cabinet arrangement direction of the multiple cabinets. The tape moving method comprises the following steps: acquiring a moving source coordinate and a moving destination coordinate of a target tape according to a tape moving instruction; selecting a target mechanical arm from the first mechanical arm and the second mechanical arm according to magnetic tape slot position coordinates in the moving source coordinates and the moving target coordinates; and controlling the target mechanical arm to move the target tape. According to the invention, the availability of the tape library can be improved.

The invention provides a data archiving storage method and device, electronic equipment and a storage medium, and relates to the technical field of data storage and archiving, in particular to the technical field of tape libraries. The method is applied to a storage system and comprises the steps that target data are obtained and written into a pre-created first logic storage unit, and the first logic storage unit is a disk storage pool; target data of the first logic storage unit are read and written into a second logic storage unit, the identifier of the target data in the second logic storage unit is consistent with the identifier of the target data in the first logic storage unit, and the second logic storage unit is created according to the parameters of the tape library; and reading the target data of the second logic storage unit, converting the target data into a storage format suitable for the tape library, and dumping the target data into the tape library. Through the staged data processing and storage mode, the flexibility and reliability of data storage are improved, the storage cost is remarkably reduced, and meanwhile the integrity and consistency of the data are kept.

A holographic data storage medium shaped as tape is provided. The holographic data storage medium has a thickness of 60μm or less. A holographic tape cartridge for use with a holographic data storage system is also provided. A system for receiving a holographic tape cartridge comprising a holographic data storage medium is also provided. A holographic tape library is also provided.

A tiered storage arrangement is contemplated that provides high speed tier 1 storage for rapid access to recalled data, mid-speed tier 2 storage for data that is not frequently recalled and tier 3 storage for archive purposes that may include tape library storage and even cold storage in vaults. Embodiments contemplate a server linked to all tiered storage devices on one end and a host computer on another. Data files can be migrated between the tiered storage systems based on migration policies, such as time elapsed from being filed or last accessed. Also, embodiments contemplate a time bar displayed at the host computer that provides accurate time predictions of data recall including information of the kind of storage on which a target file is stored and the pathway to recall the target file / s locally to the host computer.

The present application discloses a drive task management method and device for a tape library system, and a storage medium. The method comprises: after a drive task update is triggered, determining a tape task to be executed in a task queue to be executed; acquiring a drive state table, and, on the basis of the drive state table and the drive task update, selecting an execution drive of the tape task; and adding an execution command of the tape task to a command queue corresponding to the execution drive.

The invention provides a tape library archiving and data extraction task execution time intelligent prediction method and system, and relates to the technical field of data storage and archiving. Comprising the steps of collecting task attribute information, current equipment state information and global queuing state information of a task in real time; constructing a multi-dimensional feature vector; inputting the multi-dimensional feature vector into a pre-trained artificial intelligence model to obtain preliminary prediction time and prediction confidence; calculating a physical theory lower limit of task execution time according to physical parameters and kinematics constraints of the tape library; dynamically determining a correction weight according to the task attribute information, the prediction confidence and the prediction error of the same type of historical tasks; and performing weighted correction on the preliminary prediction time and the physical theory lower limit to generate final prediction time. According to the method, the execution time of the tape library data archiving and recovery task can be predicted in a high-precision and high-reliability manner.

The invention provides a data read-write method and device of a tape library, a server and a storage medium, and belongs to the field of data storage, and the method comprises the following steps: in response to the fact that received tape library serial numbers carried by data read-write requests sent by a plurality of clients are the same, distributing a target tape unit and a target tape to each client in a target tape library; sending a magnetic tape loading instruction to the target magnetic tape library, so that the target magnetic tape library loads the target magnetic tape allocated to each client to a matched target magnetic tape unit according to the magnetic tape loading instruction; and respectively sending the magnetic tape unit serial number of the distributed target magnetic tape unit and the magnetic tape number of the target magnetic tape to each client, so that each client is accessed to the distributed target magnetic tape unit and performs data read-write operation in the corresponding target magnetic tape. According to the invention, a plurality of clients can share one tape library at the same time. The invention further relates to the technical field of finance and medical treatment, and disk data reading and writing can be carried out on the finance client side and the medical client side at the same time.

The invention provides a backup method and device for unstructured object data, equipment and a medium, and effectively solves the problem of poor user experience caused by the phenomena that the backup efficiency is low and faults are easy to occur when the existing unstructured object data is backed up. The method comprises the following steps: according to a target backup stage of unstructured object data, a backup server obtains target backup object data in a target object storage container in the target backup stage; downloading target backup object data, and identifying a data type of the target backup object data to select a target compression strategy corresponding to the data type; compressing the target backup object data to obtain backup data packets, and generating index information of each backup data packet; and writing index information into the backup data packet to obtain a target backup data packet, and uploading the target backup data packet to the tape library through a pre-configured data interface to complete backup of the unstructured object data.

A holographic data storage medium shaped as tape is provided. The holographic data storage medium has a thickness of 60μm or less. A holographic tape cartridge for use with a holographic data storage system is also provided. A system for receiving a holographic tape cartridge comprising a holographic data storage medium is also provided. A holographic tape library is also provided.