133 results about "Tape drive" patented technology

The invention provides a magnetic head, a magnetic tape unit and a magnetic tape storage rack, and belongs to the technical field of magnetic tape storage. The magnetic head comprises a plurality of read-write areas, the plurality of read-write areas are arranged in the height direction of the magnetic head, and intervals are formed among the plurality of read-write areas; each of the plurality of read-write areas comprises a write head area and a read head area which are arranged along the width direction of the magnetic head, the write head area comprises a write head for writing data into the magnetic tape, and the read head area comprises a read head for reading data from the magnetic tape; and when data access needs to be carried out on a target data band of the tape, carrying out data access on the target data band through the read-write area closest to the target data band. According to the magnetic head, the thickness of the magnetic tape units can be reduced, more magnetic tape units are arranged in the rack, and the magnetic tape storage density of the rack is improved. The magnetic head can also save materials for manufacturing the magnetic head and reduce the manufacturing cost of the magnetic head.

A method, in accordance with one aspect, includes writing, by a tape drive, data tracks to a data band of a magnetic tape having servo bands flanking the data band, the writing being performed using a magnetic head that is not designed for a format of the magnetic tape. The writing includes overwriting a portion of each of the servo bands with the data tracks. A method, in accordance with another aspect, includes writing data tracks to a data band using a magnetic head that is not designed for a format of the magnetic tape. An effective pitch of servo readers of the magnetic head used simultaneously during the writing matches a servo reader pitch specification of the format of the magnetic tape. An average effective pitch of write transducers of the magnetic head is greater than a data track pitch specification of the format of the magnetic tape.

The present disclosure generally relates to a tape and a tape drive comprising a tape head and a controller. The tape drive comprises a tape comprising three data bands and four servo tracks, a servo track of the four servo tracks being disposed between adjacent data bands, one or more tape head modules, each tape head module comprising a plurality of data elements and two or more servo element pairs, and a controller configured to control each of the one or more tape head modules to write data to and read data from the tape. Each data band has a width of about one-third a total width of the tape, such as about 3800 μm to about 3900 μm. The three data bands and four servo tracks span the total width of the tape.

A method, in accordance with one aspect, includes writing, by a tape drive, data tracks to a data band of a magnetic tape having servo bands flanking the data band, the writing being performed using a magnetic head that is not designed for a format of the magnetic tape. The writing includes overwriting a portion of each of the servo bands with the data tracks. A method, in accordance with another aspect, includes writing data tracks to a data band using a magnetic head that is not designed for a format of the magnetic tape. An effective pitch of servo readers of the magnetic head used simultaneously during the writing matches a servo reader pitch specification of the format of the magnetic tape. An average effective pitch of write transducers of the magnetic head is greater than a data track pitch specification of the format of the magnetic tape.

A plurality of servo patterns are recorded in a magnetic tape along a longitudinal direction. The servo pattern is at least one linear magnetization region pair. The linear magnetization region pair includes a first linear magnetization region, which is linearly magnetized, and a second linear magnetization region, which is linearly magnetized. The first linear magnetization region and the second linear magnetization region are inclined in opposite directions with respect to a first imaginary straight line along a width direction of the magnetic tape. The first linear magnetization region has a steeper inclined angle with respect to the first imaginary straight line than the second linear magnetization region.

In a tape drive comprising a tape head module, a tape contacts the tape head module during operation. The tape head module comprises a substrate, a plurality of data heads disposed adjacent to the substrate at a media facing surface (MFS), and a closure disposed adjacent to the plurality of data heads. The closure comprises a first side portion disposed at a leading edge, a second side portion disposed at the leading edge, the first and second side portions being recessed from the MFS, and a central portion disposed between the first and second side portions at the leading edge. In some embodiments, the central portion is recessed from the MFS. The central portion may comprise a notch, a taper, or one or more steps. The first and second side portions may be tapered, rounded, or comprise one or more steps to reduce contact of a tape during operation.

A first servo pattern has a first position and a second position which intersect an imaginary line. A second servo pattern has a third position intersecting the imaginary line. The imaginary line is set at a position at which a relationship in which a distance between the first position and the second position is half of a distance between the first position and the third position is established between the first servo pattern and the second servo pattern adjacent to each other in a longitudinal direction. A width of a servo band is set to a length in which a distance from the imaginary line to one end of the servo band in a width direction and a distance from the imaginary line to the other end of the servo band in the width direction are equal.

A servo pattern recording head includes: a plurality of head cores that are magnetically separated from each other; and a plurality of gap patterns that are formed on a front surface of each of the plurality of head cores and that are used for recording a plurality of servo patterns in a width direction of a magnetic tape by applying a magnetic field to the magnetic tape in response to a pulse current, in which the plurality of gap patterns are formed on the front surface along a direction corresponding to the width direction, and the plurality of gap patterns deviate from each other at a predetermined interval in a direction corresponding to a longitudinal direction of the magnetic tape between the gap patterns adjacent to each other along the direction corresponding to the width direction.

The embodiment of the invention provides a magnetic tape, a driver, a magnetic tape system and electronic equipment, and aims to avoid failure of the whole magnetic tape system due to breakage of the magnetic tape in the magnetic tape system. The magnetic tape system comprises a magnetic tape, a read-write magnetic head, a page extractor and a controller, the magnetic tape comprises a plurality of storage pages which are arranged in a stacked mode, and in the read-write process of the magnetic tape, the controller can determine at least one target storage page from the storage pages. And then the controller can control the page fetcher to fetch the target storage page and control the read-write magnetic head to read data in the target storage page or write the data into the target storage page. The data is stored in the multiple storage pages, in the working process, the page taking device makes contact with the target storage page so as to take out the target storage page, compared with the mode that a magnetic tape is wound on a reel, the stress of the storage pages is small, and therefore the situation that the magnetic tape in a magnetic tape system breaks, and consequently the whole magnetic tape system fails is avoided.

The magnetic head comprises a recording module in which a plurality of recording elements are provided, and a reproducing module in which a plurality of reproducing elements are provided. The recording module and the reproducing module are disposed along a longitudinal direction of the magnetic tape. A pair of first servo reading elements of the recording module and a pair of second servo reading elements of the reproducing module are shifted from each other by a predetermined difference along one direction in the width direction of the magnetic tape. The predetermined difference is defined based on a pitch between a plurality of tracks formed using an SMR method and a length of the recording element in the width direction of the magnetic tape.

In a tape drive comprising a tape head module, a tape contacts the tape head module during operation. The tape head module comprises a substrate, a plurality of data heads disposed adjacent to the substrate at a media facing surface (MFS), and a closure disposed adjacent to the plurality of data heads. The closure comprises a first side portion disposed at a leading edge, a second side portion disposed at the leading edge, the first and second side portions being recessed from the MFS, and a central portion disposed between the first and second side portions at the leading edge. In some embodiments, the central portion is recessed from the MFS. The central portion may comprise a notch, a taper, or one or more steps. The first and second side portions may be tapered, rounded, or comprise one or more steps to reduce contact of a tape during operation.

The invention discloses magnetic tape unit equipment and a storage system, and relates to the technical field of magnetic tapes. According to the method and the device, the problem that the magnetic tape in the magnetic tape unit needs to frequently turn round to access the data in the magnetic tape by the magnetic head is solved, the magnetic tape does not need to frequently turn round in the data access process, the IO delay of the magnetic tape unit is reduced, and the access efficiency of the magnetic tape unit is improved. A data area in the magnetic tape is divided into a plurality of data slices, the data slices are arranged at intervals, and every two adjacent data slices are used for storing data of the same IO flow. In the tape winding process after the magnetic tape is driven by the magnetic tape driver, the problem of reverse tape winding of the magnetic tape does not need to be considered, the magnetic tape driver can wind the magnetic tape at a relatively stable speed, and a magnetic head can still continuously access data slices arranged in the magnetic tape at intervals in the tape winding process; the tape does not need to turn around frequently, the IO delay of the tape unit equipment is reduced, and the access efficiency of the tape unit equipment is improved.

Beginning of wrap (BOW) data set reading and writing for tape drives is provided. In response to reaching an end of wrap (EOW) while writing to tape, a tape directory (TD) is updated to include first data set information for a first data set written at the EOW of a first wrap. A second data set is written using normal write procedure from a BOW of a second wrap, the second wrap following the first wrap. The first data set information is overwritten with second data set information for the second data set written at BOW. When reading a BOW data set from tape, data set information is read from a TD. Based on determining whether the data set information corresponds to a BOW data set, a target Data Set ID and a target Tape Write Pass are set for reading the BOW data set.

Provided are a method, system, and computer program product in whichdata is encoded for a plurality of tracks of a tape of a tape drive, by using an error correction code (ECC) scheme that applies a single code with code word symbols that are at least 10 bits. The code word symbols are interleaved along and across parallel tracks of the tape in the tape drive.

The invention discloses a printing assembly which comprises a printing mechanism (1), a carrier pushing mechanism (2) and a mounting structure (3), and a printing tape box is detachably mounted on the mounting structure (3). The mounting structure (3) comprises a tape take-up wheel (31), a tape pay-off wheel (32) and a clamping driving part (33) for clamping the printing tape and driving the printing tape to move, and the tape take-up wheel (31) and the clamping driving part (33) are respectively driven by a power mechanism or are both driven by a tape body driving mechanism (34); the carrier pushing mechanism (2) is used for pushing a carrier; and the printing mechanism (1) is used for pressing the printing tape in the printing tape box to the surface of a carrier for printing. The invention further provides a printing device. The printing assembly provided by the invention can be matched with the modularized printing tape box for printing, the printing tape box can be directly taken down and replaced when needing to be replaced, the printing assembly is simple and convenient, the operation difficulty is low, consumers can conveniently and rapidly replace the printing tape box, and the working efficiency is improved.

Provided is a system, method, and computer program product for minimizing high resolution tape directory (HRTD) recovery time when a HRTD is invalid. A tape drive may load a tape in the tape drive. In response to receiving a write command or a read command at a beginning of tape (BOT) position, the tape drive may execute the write command or the read command without performing HRTD recovery. In response to receiving the write command or the read command at a position other than the BOT position, the tape drive may determine if the HRTD is valid. In response to determining the HRTD is not valid, the tape drive may clear a timer.

The utility model relates to the technical field of portable medical adhesive tape devices, in particular to an intelligent portable medical adhesive tape device for nursing, which comprises a shell with an opening structure at the front end, a through hole is formed in the right side wall of the shell in a penetrating manner, and a turn number sensor is mounted on the rear inner side wall of the through hole. The length of the medical adhesive tape needing to be taken is set by controlling the computer panel, then the tail end of the medical adhesive tape is pinched by two fingers and the medical adhesive tape is pulled, so that the medical adhesive tape is moved out of the shell through the through hole, and meanwhile, due to adhesion between the medical adhesive tape and the two rollers, in the moving process of the medical adhesive tape, the medical adhesive tape can be conveniently taken out. The medical adhesive tape drives the two rolling wheels to rotate, the two rolling wheels drive the rotating shaft to rotate, the number of rotation turns of the two rolling wheels and the rotating shaft is detected and counted through the turn number sensor, and due to the fact that the perimeters of the two rolling wheels are fixed, the length of the moved medical adhesive tape can be calculated through the number of rotation turns of the two rolling wheels. And further, the length of the taken medical adhesive tape is controlled.

A magnetic tape drive and an assembly for a tape drive are disclosed herein. The disclosed magnetic tape drive comprises a SAS-compliant tape drive module; and a USB-C to SAS assembly having one or more controllers operatively coupled to a USB-C connector and a SAS connector. The SAS connector of the USB-C to SAS assembly is operatively coupled to the SAS-compliant tape drive module. The USB-C to SAS assembly is configured to enable the magnetic tape drive to interface a USB-C-compliant computing device with the SAS-compliant tape drive module, and the USB-C to SAS assembly is configured to transmit tape commands received at the USB-C connector to the SAS-compliant tape drive module via the one or more controllers and the SAS connector. The assembly includes a SAS connector, a USB-C connector, and one or more controllers operatively coupled to the SAS connector and the USB-C connector.

Provided are a tape head controller, tape drive, and method for simultaneously writing data to two sets of channels to increase channel transfer rate. A tape head module having a first and second sets of read / write elements is positioned to have the first set of read / write elements on a selected wrap number in a first n channels in a first data band and the second set of read / write elements on the selected wrap number in a second n channels in a second data band. The first set and the second set of read / write elements are controlled to simultaneously perform read / write operations with respect to the selected wrap number in the first n channels and the second n channels, respectively. A combination of the first n channels and the second n channels is presented as a 2n-channel layout with a plurality of wraps in each of n channels.

Disclosed are a tape drive device and a storage system, which relate to the technical field of tapes. By means of using a tape winding assembly to temporarily store tape bodies between different positioning members, even after a tape slides past a target tape region aligned with a magnetic head, the length of the tape between different positioning members can still be controlled by means of the tape winding assembly, such that the moved magnetic head can access the target tape region, thereby solving the problem of the latency being relatively high caused by frequent reversals of a motor-driven tape in the tape drive device, reducing IO latency in the tape drive device, and facilitating an improvement in the data read / write efficiency of the tape drive device.

The invention discloses a magnetic tape transmission assembly, magnetic tape unit equipment and a storage system, and relates to the technical field of magnetic tapes. The tape drive assembly includes: a seat; the shaft body is in sliding connection with the base in the axial direction of the shaft body; the transmission part is connected with the shaft body; the rolling assemblies are distributed in the axial direction of the shaft body and arranged outside the shaft body in a sleeving mode. When the magnetic tape transmission assembly is in the first state, the first rolling assembly in the multiple rolling assemblies abuts against the transmission part, and the second rolling assembly in the multiple rolling assemblies is separated from the transmission part. Or when the tape transmission assembly is in the second state, the first rolling assembly abuts against the transmission part, and the second rolling assembly abuts against the transmission part. When a disk of tape is divided into a plurality of parts and is respectively carried to the plurality of scrolling assemblies, the length of the tape carried on one scrolling assembly is reduced, so that the distance of the scrolling assembly rotating from the initial position to the target position (the position for storing the target data) is reduced, the consumed time is reduced, and the efficiency of reading the target data is improved.

The invention relates to the technical field of magnetic tape units, in particular to a magnetic tape driver, a magnetic tape unit and a storage system.The magnetic tape driver comprises a read head, an analog equalization circuit and a digital processing chip; the read head is coupled with the analog equalization circuit, the analog equalization circuit is coupled with the digital processing chip, and the analog equalization circuit comprises an active filter; wherein the read head is used for reading an original analog signal from a magnetic tape of a magnetic tape unit and outputting the original analog signal to the analog equalization circuit; the analog equalization circuit is used for performing data equalization on the original analog signal through an active filter to obtain a first analog signal and outputting the first analog signal to the digital processing chip; the frequency response curve of the first analog signal is closer to the frequency response curve of a target signal type than the frequency response curve of the original analog signal, and the target signal type comprises partial response signals; and the digital processing chip is used for converting the analog signal into a digital signal and processing the digital signal. According to the embodiment of the invention, the order of the digital filter in the magnetic tape unit can be reduced.

The invention relates to a tape data processing method and device and a computer program product, relates to the technical field of data storage, and can improve the processing efficiency of tape data. The method comprises the following steps: in response to data writing requests from a plurality of service tasks, respectively creating corresponding logic storage channels for the plurality of service tasks; in response to a tape driver use request of the service task, adding a logic storage channel corresponding to the service task into a scheduling queue of a tape driver; sequentially selecting the logic storage channels in the scheduling queue, and distributing the right to use of the tape driver to the target business task corresponding to the logic storage channel selected each time; the right to use is released after at least one data block of which the current target business task does not exceed the quantity threshold value is written into the magnetic tape, and the right to use is continuously allocated to the target business task corresponding to the next selected logic storage channel.

The present disclosure generally relates to a tape drive comprising a tape head assembly. The tape head assembly comprises a head block having a first end and a second end, the second end being opposite the first end, one or more tape head modules disposed on the head block, the one or more tape head modules each comprising a plurality of data elements, a first spring disposed at the first end of the head block, a piezoelectric element disposed in contact with the second end of the head block, a counterweight disposed adjacent to the second end of the head block, and a second spring disposed adjacent to the second end of the head block. The counterweight has a first weight. The head block and the one or more tape head modules have a collective second weight. The first weight is equal to or greater than the second weight.

The application discloses a magnetic tape storage adaptive interleaving method and system based on dynamic error mode detection, relates to the technical field of magnetic tape interleaving, and comprises the following steps: continuously collecting error information in a magnetic tape reading and writing process and forming a structured report; judging the received structured report according to a preset rule, dynamically calculating new interleaving parameters, and outputting a decision package containing a new interleaving depth factor and a new available track list; checking whether the parameters in the received decision package are within a preset range, and if yes, sending an instruction to a magnetic tape drive through a bottom driver interface, setting new interleaving configuration for the magnetic tape, and obtaining a success status code returned by the magnetic tape drive; and the interleaving method significantly improves the reliability and error correction efficiency of the magnetic tape storage system in a complex error environment, reduces redundancy, and improves the effective utilization rate of storage space.

The present disclosure generally relates to a tape and a tape drive comprising a tape head and a controller. The tape drive comprises a tape comprising three data bands and four servo tracks, a servo track of the four servo tracks being disposed between adjacent data bands, one or more tape head modules, each tape head module comprising a plurality of data elements and two or more servo element pairs, and a controller configured to control each of the one or more tape head modules to write data to and read data from the tape. Each data band has a width of about one-third a total width of the tape, such as about 3800 μm to about 3900 μm. The three data bands and four servo tracks span the total width of the tape.

A data rewriting method and apparatus are disclosed. The method includes: acquiring the decoding result of a data block read from a magnetic tape by a tape drive, the data block comprising multiple data sub-blocks, each data sub-block comprising multiple data units and at least one check unit, the at least one check unit being obtained by encoding the multiple data units; the decoding result of the data block indicating the number of erroneous data units and / or check units in each of the one or more data sub-blocks included in the data block; determining whether the data block passes verification based on encoding capability information, the encoding capability information including a first encoding error correction threshold and a second encoding erasure threshold; if the number of data sub-blocks that fail decoding in the data block exceeds the second encoding erasure threshold, the data block fails verification; a data sub-block that fails decoding refers to a data sub-block containing erroneous data units and / or check units exceeding the first encoding error correction threshold; and rewriting the data block that fails verification.

The utility model discloses an automatic LED lamp bead separating device, which relates to the technical field of lamp bead separating equipment and comprises a machine table, and a stripping panel, an adhesive tape feeding mechanism, an adhesive tape winding mechanism, a scraper mechanism and a collecting mechanism are arranged on the machine table. The stripping panel is horizontally arranged on the machine table; the scraping plate mechanism comprises a scraping plate, the scraping plate is arranged at one end of the stripping panel, and a glue line through which only an adhesive tape film can pass is formed between the scraping plate and the stripping panel; when the LED lamp bead stripping device is used, a thin film adhered with LED lamp beads is manually adhered to a flattened adhesive tape (with an adhesive surface facing upwards) above the stripping panel, the adhesive tape drives the thin film and the LED lamp beads to pass through an adhesive line when the device runs, the width of the adhesive line is small, the lamp beads are scraped by the scraper, the LED lamp beads are separated from the thin film, the LED lamp beads are collected by the collecting mechanism, and the LED lamp beads are separated from the thin film. And the film continuously runs to the adhesive tape winding mechanism on the adhesive tape and is wound together with the adhesive tape, so that the separation of the LED lamp beads is efficiently completed.

A method and system for diagnosing tape cartridge and tape drive errors at a customer site and a tape cartridge used in the method and the system is disclosed herein. The tape cartridge includes a cartridge housing; a cartridge reel that is rotatably secured to the cartridge housing; tape media that is secured to the cartridge reel; and non-volatile cartridge memory comprising initial calibrated tape cartridge error data stored thereon, the initial calibrated tape cartridge error data comprising error information for a new state of the tape cartridge prior to the tape cartridge being used in an end-user tape drive so that subsequent errors associated with the tape cartridge and / or the end-user tape drive are able to be compared with the initial calibrated tape cartridge error data to determine whether the subsequent errors are associated with the tape cartridge, the end-user tape drive, or both the cartridge and the drive.