An information processing apparatus performs a control of recording identification information of a storage pool in at least one of a management area of a magnetic tape belonging to the storage pool or a recording medium other than a magnetic tape that is provided in a magnetic tape cartridge including the magnetic tape, the storage pool being included in a plurality of storage pools in which the same data is recorded by being multiplexed with a multiplicity of one or more, and the identification information being different for each storage pool in a pool group and being the same information between storage pools in pool groups different from each other according to a multiplexing order of the storage pool.

A method includes receiving, at a processor, an identification of a storage tape. The method further includes determining, at the processor, a start-point for extracting information from the storage tape. The method further includes extracting the information, by the processor, from the storage tape starting at the start-point. The method further includes determining, by the processor, whether an end-point of the information has been reached. The method further includes reproducing, by the processor, the information to a computer-readable medium. The method further includes formatting, by the processor, the information to conform with format requirements of an activity log analyzing tool.

The present invention provides a method of partitioning a tape medium dynamically by using a new method of writing data. It enables users to change size of the partitions later and to use all capacity of a tape efficiently. When a tape is divided into partitions, data is written in such a manner that the wraps are written in the partitions of the data band alternately in the forward direction and in the backward direction on the data band from the different sides of the data band toward the inside of the data band (W1,W2,W3 . . . ) and the location (C) at which the wrap (Wm) of the one partition collides with the wrap (Wn) of the other partition is defined as the demarcation (PB) of these partitions (P0,P1).

A tape library apparatus includes a tape drive, a robot unit, and a second processor. The tape drive includes a first access mechanism and a first processor. The first access mechanism is configured to read position information from a non-contact type memory within a tape cartridge. The position information indicates a position of data recorded in a magnetic tape within the tape cartridge. The first processor is configured to perform positioning for the data. The robot unit includes a robot arm and a second access mechanism configured to access the non-contact type memory. The robot arm is configured to store the tape cartridge in the robot unit, and move the tape cartridge to the tape drive. The second processor is configured to control the second access mechanism to read the position information from the non-contact type memory, and store the position information in a non-volatile memory.

Aspects of the present disclosure relate to a method of writing a dataset to a tape, the dataset comprising a plurality of sub datasets, each sub dataset including a plurality of headers and a plurality of records. The method includes storing, in each header of each sub dataset, at least a portion of a record range indicator indicating a range of records included in the dataset.

Systems and methods for managing data with respect to tape storage are provided. The system includes a data manager for receiving metadata related to content and for generating a proxy file system which mirrors the data structure of the content data. The system further includes a server coupled to a tape device, the server receiving the content data directly from a data source and providing the content data the tape device for storage on a formatted tape media.

A recording device including at least one processor, wherein the processor is configured to: acquire, for attached information attached to each of a plurality of recording target data recorded on a recording medium, a first relevance degree according to a frequency at which data other than the recording target data attached with information having the same contents as the attached information is read out within a period determined in advance; derive, for each combination of a plurality of recording target data, a second relevance degree representing a possibility that the plurality of recording target data included in the combination is read out within the period based on the first relevance degree; and classify the plurality of recording target data into groups based on the second relevance degree and perform control of recording the classified data on the recording medium for each group.

A data storage device is disclosed comprising at least one head configured to access a magnetic tape. The head is used to write contiguously to the magnetic tape a first preamble, followed by a first sync mark, followed by symbols of a first data sector, followed by a second sync mark, followed by a second preamble, followed by a third sync mark, followed by symbols of a second data sector.

An information processing device performs control to record deletion information indicating that an object with a designated object ID has been deleted, on a recording medium, in a case where a specific object ID is designated and an instruction to delete the object is input, for a magnetic tape on which an object that includes data and metadata related to the data and that is assigned an object ID as identification information is recorded, the object being assigned an object ID in a case where the object is updated different from an object ID of the object before the update.

An apparatus, in accordance with one aspect of the present invention, includes an inner array of data transducers on a module, the data transducers of the inner array being aligned along a common axis that extends between distal ends of the module. Two outer arrays of data transducers are positioned to sandwich the inner array therebetween. Inner servo readers are positioned between the inner array and the outer arrays. Outer servo readers are positioned toward outer ends of the outer arrays. Widths of at least some of the outermost data transducers in the inner array are less than widths of at least some of the innermost data transducers in the inner array.