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1. 发明授权

US09799371B1 Tape apparatus and control device 有权
公开(公告)号：US09799371B1
公开(公告)日：2017-10-24
申请号：US15499015
申请日：2017-04-27
申请人： FUJITSU LIMITED
发明人： Nobuyuki Hirashima , Takashi Murayama , Takuya Kurihara , Takaaki Yamato , Katsuo Enohara , Naoki Hirabayashi
IPC分类号： G11B20/18 , G11B5/008 , G11B5/09 , G11B20/12
CPC分类号： G11B20/1886 , G11B5/00821 , G11B5/09 , G11B20/1202 , G11B2020/183 , G11B2020/1893
摘要： A tape apparatus includes a tape drive and a processor. The tape drive is configured to perform data reading and data writing on a magnetic tape in which a plurality of tracks are formed. The processor is configured to control the tape drive to perform data reading and data writing on the plurality of tracks in a first segment among a plurality of segments obtained by dividing the magnetic tape in a running direction. The processor is configured to reserve a first track of the plurality of tracks as a copy target upon determining that an abnormality occurs in the first segment on the first track. The processor is configured to instruct the tape drive to copy data recorded in the first segment on the first track to a second segment on the first track at a predetermined timing. The second segment is adjacent to the first segment.

2. 发明授权

US09761257B2 High density timing based servo format 有权
公开(公告)号：US09761257B2
公开(公告)日：2017-09-12
申请号：US15215495
申请日：2016-07-20
申请人： International Business Machines Corporation
发明人： Robert G. Biskeborn , Mark A. Lantz
IPC分类号： G11B5/09 , G11B5/008 , G11B5/584 , G11B20/12 , G11B15/18
CPC分类号： G11B5/584 , G11B5/00817 , G11B15/18 , G11B20/1202
摘要： A product according to one embodiment includes a magnetic recording tape having opposite ends and at least one servo track, a longitudinal axis of the magnetic recording tape being defined between the ends. The at least one servo track has a plurality of straight first magnetic bars, and a plurality of straight second magnetic bars spaced from the first magnetic bars. A width of each of the at least one servo track is defined in a direction perpendicular to the longitudinal axis of the magnetic recording tape between sides of the servo track. Lengths of the second magnetic bars between outermost ends thereof are less than 80% of the width of the associated servo track, straight portions of the second magnetic bars each having a longitudinal axis oriented substantially 90 degrees from the longitudinal axis of the magnetic recording tape.

3. 发明授权

US09412412B2 Logical block protection for tape interchange 有权
标题翻译：磁带交换的逻辑块保护
公开(公告)号：US09412412B2
公开(公告)日：2016-08-09
申请号：US14521326
申请日：2014-10-22
申请人： SILICON GRAPHICS INTERNATIONAL CORP.
发明人： Kevan Flint Rehm , Judith Ann Schmitz , Joseph Carl Nemeth , John Michael Sygulla
IPC分类号： G11B5/584 , G11B20/12 , G11B20/18 , G11B5/008
CPC分类号： G06F11/1004 , G06F3/0619 , G06F3/064 , G06F3/0682 , G11B5/00813 , G11B20/1202 , G11B20/1833 , G11B2020/1843
摘要： A two part process is used for modifying records to be written and retrieved from tape devices. A record is appended with a cyclic redundancy check and a string of zeros. Submitting the entire record to tape drives which are logical block protection enabled will result in no change. For drives that are not LBP enabled, the string of zeros at the end of the record is removed. In addition to determining whether a drive is LBP compliant, a determination may be made as to whether a drive is a linear tape open drive from a particular manufacturer. Linear tape open drives may behave similarly as drives which may not be enabled with logical block protection.
摘要翻译：用于修改要从磁带设备写入和检索的记录的两部分过程。一个记录附加一个循环冗余校验和一串零。将整个记录提交到启用了逻辑块保护的磁带驱动器将导致无变化。对于不启用LBP的驱动器，删除记录末尾的零字符串。除了确定驱动器是否符合LBP之外，还可以确定驱动器是否是来自特定制造商的线性磁带打开驱动器。线性磁带打开驱动器可能与可能未启用逻辑块保护的驱动器类似。

4. 发明授权

US09171563B1 Recording medium having independent track for velocity, timing and/or longitudinal position 有权
标题翻译：具有用于速度，正时和/或纵向位置的独立轨道的记录介质
公开(公告)号：US09171563B1
公开(公告)日：2015-10-27
申请号：US14503286
申请日：2014-09-30
申请人： International Business Machines Corporation
发明人： Robert G. Biskeborn
IPC分类号： G11B5/584
CPC分类号： G11B5/584 , G11B5/00817 , G11B20/1202
摘要： A product according to one embodiment includes a magnetic recording tape having at least one first servo track having timing information, and a supplemental servo track having at least one of: velocity encoding and longitudinal position encoding. An apparatus according to one embodiment includes a magnetic head and at least one module having an array of transducers. The apparatus is configured to read and/or write to magnetic recording media having at least one first servo track having timing information, and a supplemental servo track having at least one of: velocity encoding and longitudinal position encoding.
摘要翻译：根据一个实施例的产品包括具有至少一个具有定时信息的第一伺服轨迹的磁记录带，以及具有速度编码和纵向位置编码中的至少一个的补充伺服轨迹。根据一个实施例的装置包括磁头和具有换能器阵列的至少一个模块。该装置被配置为读取和/或写入具有至少一个具有定时信息的第一伺服轨迹的磁记录介质，以及具有以下至少一个的补充伺服轨迹：速度编码和纵向位置编码。

5. 发明授权

US09129631B1 Shingle verify archive appliance 有权
标题翻译：瓦片验证存档设备
公开(公告)号：US09129631B1
公开(公告)日：2015-09-08
申请号：US14326425
申请日：2014-07-08
申请人： International Business Machines Corporation
发明人： Robert G. Biskeborn , Calvin S. Lo
IPC分类号： G11B21/02 , G11B5/09 , G11B5/60
CPC分类号： G11B27/36 , G11B5/00813 , G11B5/00826 , G11B5/6005 , G11B20/1201 , G11B20/1202 , G11B20/1816
摘要： An apparatus according to one embodiment includes a write transducer and a read transducer. A controller is coupled to the write transducer and the read transducer. The controller is configured to control the write transducer to perform shingled writing where a currently written track is written over a portions of a previously written track thereby defining a shingled track comprising a remaining portion of the previously written track. The controller is also configured to read data from at least one shingled track during the shingled writing. A method according to one embodiment includes writing data in shingled tracks on a magnetic recording medium, performing a read-while-write operation for verifying the data in the shingled tracks, and concurrently reading data from previously shingled tracks.
摘要翻译：根据一个实施例的装置包括写换能器和读换能器。控制器耦合到写换能器和读换能器。控制器被配置为控制写入换能器执行带状闪烁的写入，其中当前写入的轨道被写在先前写入的轨道的一部分上，从而定义包含先前写入轨迹的剩余部分的带状轨迹。控制器还被配置为在着色的写入期间从至少一个带有阻尼的轨道读取数据。根据一个实施例的方法包括将数据写在磁记录介质上的带状磁道中，执行用于验证带状光轨道中的数据的同时读写操作，以及同时从先前带有凹坑的轨道读取数据。

6. 发明授权

US08576510B2 Robust metric computation of longitudinal position (LPOS) data symbol detection 有权
标题翻译：纵向位置（LPOS）数据符号检测的鲁棒度量计算
公开(公告)号：US08576510B2
公开(公告)日：2013-11-05
申请号：US13267837
申请日：2011-10-06
申请人： Giovanni Cherubini , Jens Jelitto , Robert A. Hutchins
发明人： Giovanni Cherubini , Jens Jelitto , Robert A. Hutchins
IPC分类号： G11B5/584
CPC分类号： G11B20/1202 , G11B5/584 , G11B20/10231 , G11B20/10287 , G11B20/1201 , G11B2020/1281 , G11B2220/90 , G11B2220/93 , G11B2220/956
摘要： In one embodiment, a tape drive system includes a magnetic head having a servo sensor for sensing a defined servo track of a magnetic tape and configured to read servo pulses from servo bursts of the servo track while the magnetic tape is moving past the magnetic head with the servo bursts representing an encoded data symbol, an analog-to-digital converter configured to provide a sequence of samples of the readback servo signal, a digital correlator configured to compute a correlation signal between the sequence and a reference waveform, a timing reference module configured to provide a reference timing model having interpolation instants to the digital correlator, a correlation interpolator configured to interpolate the correlation signal at the interpolation instants and compute a longitudinal position (LPOS) detection metric, and an LPOS detector configured to decode the encoded data symbol of the servo bursts using the computed LPOS detection metric.
摘要翻译：在一个实施例中，磁带驱动系统包括具有伺服传感器的磁头，该伺服传感器用于感测磁带的定义的伺服磁道并且被配置为在磁带通过磁头移动经过磁头的同时从伺服磁道的伺服脉冲串读取伺服脉冲，表示编码数据符号的伺服突发，被配置为提供所述回读伺服信号的采样序列的模数转换器，被配置为计算所述序列与参考波形之间的相关信号的数字相关器，定时参考模块被配置为向所述数字相关器提供具有内插时刻的参考定时模型，相关内插器，被配置为在所述内插时刻内插所述相关信号并计算纵向位置（LPOS）检测度量，以及LPOS检测器，被配置为对所述编码数据符号的伺服脉冲串使用计算的LPOS检测度量。

7. 发明申请

US20100180180A1 ECC INTERLEAVING FOR MULTI-TRACK RECORDING ON MAGNETIC TAPE 有权
标题翻译：用于磁带上的多轨迹记录的ECC交互
公开(公告)号：US20100180180A1
公开(公告)日：2010-07-15
申请号：US12351738
申请日：2009-01-09
申请人： Roy D. Cideciyan , Evangelos S. Eleftheriou , Hisato Matsuo , Thomas Mittelholzer , Paul J. Seger , Keisuke Tanaka
发明人： Roy D. Cideciyan , Evangelos S. Eleftheriou , Hisato Matsuo , Thomas Mittelholzer , Paul J. Seger , Keisuke Tanaka
IPC分类号： H03M13/27 , G06F11/10
CPC分类号： H03M13/2909 , G11B20/1202 , G11B20/1833 , G11B20/1866 , G11B2020/1836 , G11B2020/1853 , G11B2220/93 , H03M13/15 , H03M13/1515
摘要： Conventional C2 coding and interleaving for multi-track data tape in LTO-¾ do not support recording data onto a number of concurrent tracks which is not a power of two. Higher-rate longer C2 codes, which do not degrade error rate performance, are provided. An adjustable format and interleaving scheme accommodates future tape drives in which the number of concurrent tracks is not necessarily a power of two. A data set is segmented into a plurality of unencoded subdata sets and parity bytes are generated for each row and column. The parameters of the C2 code include N2 as the least common multiple of the number of possible tracks to which codeword objects are to be written. COs are formed from N2 C1 codewords, mapped onto a logical data track according to information within headers of the CO and modulation encoded into synchronized COs which are written to the tape.
摘要翻译： LTO-¾中的多轨数据磁带的常规C2编码和交织不支持将数据记录到不是2的幂的多个并发轨道上。提供了更高速率的更长的C2代码，这不会降低错误率性能。可调格式和交错方案适应将来的磁带驱动器，其中并发轨道的数量不一定是二的幂。将数据集分割为多个未编码的子数据集，并为每行和列生成奇偶校验字节。 C2码的参数包括N2作为要写入码字对象的可能轨道数的最小公倍数。 CO由N2 C1码字形成，根据CO的头部内的信息和被编码成被写入到磁带的同步的CO的调制信号映射到逻辑数据轨道上。

8. 发明申请

US20080155311A1 TECHNIQUE FOR DETERMINING THE START POSITION TO WRITE DATA ON TAPE WITH RESISTANCE FOR MEDIA DEFECT 审中-公开
标题翻译：用于确定开始位置以便在媒体缺陷的电阻上写入数据的技术
公开(公告)号：US20080155311A1
公开(公告)日：2008-06-26
申请号：US11551785
申请日：2006-10-23
申请人： Yutaka Oishi
发明人： Yutaka Oishi
IPC分类号： G06F11/00
CPC分类号： G11B15/05 , G11B5/00813 , G11B20/00086 , G11B20/00253 , G11B20/1202 , G11B20/1879 , G11B2220/93
摘要： An embodiment of the present invention is a method of computing the write start position of redundant data. In this regard, data integrity against a vertical defect in tape media can be increased when the encryption keys eHKDSr (reverse direction) and eHKDSf (forward direction) are written to the tape media between tape media sections LP2 and LP3 such that they do not overlap. To accomplish this the method stores in a memory a plurality of data related to the write start and write end position of the eHKDSr key after the eHKDSr key is written to the tape media. The write start position of the eHKDSf key is then dynamically calculated such that the eHKDSf key does not overlap the eHKDSr key. As such, a vertical defect in the tape media is less likely to damage both the eHKDSr and the eHKDSf keys.
摘要翻译：本发明的实施例是计算冗余数据的写开始位置的方法。在这方面，当加密密钥eHKDSr（反向）和eHKDSf（正向））在磁带介质部分LP2和LP3之间的磁带介质上被写入时，可以增加对磁带介质中的垂直缺陷的数据完整性，使得它们不重叠。为了实现这一点，该方法在将eHKDSr密钥写入磁带介质之后，在存储器中存储与eHKDSr密钥的写入开始和写入结束位置相关的多个数据。然后动态地计算eHKDSf密钥的写入开始位置，使得eHKDSf密钥不与eHKDSr密钥重叠。因此，磁带介质中的垂直缺陷不太可能损坏eHKDSr和eHKDSf键。

9. 发明授权

US07113691B1 Method of and device for recording information 失效
标题翻译：记录信息的方法和设备
公开(公告)号：US07113691B1
公开(公告)日：2006-09-26
申请号：US09694159
申请日：2000-10-23
申请人： Ewout Brandsma
发明人： Ewout Brandsma
IPC分类号： H04N5/91
CPC分类号： G11B19/04 , G11B20/1202 , G11B20/1217 , G11B20/1883 , G11B27/327 , G11B2220/20 , G11B2220/90 , H04N5/782
摘要： A method of and an apparatus for writing data on and reading data from a recording medium such as an optical disc, a magnetic disc and, particularly, a tape are described. When a block of the medium is defective, the data to be written in said block is stored in an auxiliary memory. Subsequently, all the data from the auxiliary memory is copied to a predetermined spare area of the medium. Conversely, when the medium is read, data is first copied from the spare area of the medium to the auxiliary memory. If a block then appears to be defective, the correct information is read from the auxiliary memory.Thus, it is possible to write and read a real-time audio and/or video signal in a reliable manner without the possible presence of any defective blocks affecting the data transfer rate.
摘要翻译：描述了一种用于在诸如光盘，磁盘和特别是带之类的记录介质上写入数据并从其读取数据的方法和装置。当介质的块有缺陷时，要写入所述块的数据被存储在辅助存储器中。随后，将来自辅助存储器的所有数据复制到介质的预定备用区。相反，当读取介质时，首先将数据从介质的备用区复制到辅助存储器。如果块似乎有缺陷，则从辅助存储器读取正确的信息。因此，可以以可靠的方式写入和读取实时音频和/或视频信号，而不可能存在影响数据传输速率的任何缺陷块。

10. 发明申请

US20020126410A1 Method for managing a life of a storage medium, storage device, storage system, and storage medium 失效
标题翻译：用于管理存储介质，存储装置，存储系统和存储介质的寿命的方法
公开(公告)号：US20020126410A1
公开(公告)日：2002-09-12
申请号：US10101354
申请日：2002-03-20
申请人： FUJITSU LIMITED
发明人： Koichi Doi , Kenichi Ogura , Akihito Ohki , Takashi Miyako , Youichi Takahashi
IPC分类号： G11B019/02 , G11B027/36
CPC分类号： G11B20/1816 , G11B19/06 , G11B20/10 , G11B20/1202 , G11B27/327 , G11B27/36 , G11B2020/183 , G11B2220/41
摘要： A storage medium life management method, storage device and storage system detect the life of a storage medium (1). Medium life management information (14) indicating the read/write state of a medium is recorded on the storage medium (1). A drive (5) reads out the medium life management information (14) from the storage medium (1) when the storage medium (1) is loaded, and updates the medium life management information (14) pursuant to the operation of at least one of the reading and writing of storage medium (1). Then, the drive (5) writes medium life management information (14) to the storage medium (1) when the storage medium (1) is unloaded. This medium life management information (14) is used for determination of the life of a medium in either a drive (5) or host (4). Since management information corresponding to an actual read/write state can be obtained, the deterioration of a storage medium can be accurately detected.
摘要翻译：存储介质寿命管理方法，存储装置和存储系统检测存储介质（1）的寿命。指示介质的读/写状态的中等寿命管理信息（14）被记录在存储介质（1）上。驱动器（5）在存储介质（1）被装入时从存储介质（1）读出介质寿命管理信息（14），并且根据至少一个操作来更新介质寿命管理信息（14）的存储介质（1）的读写。然后，当卸载存储介质（1）时，驱动器（5）将中等寿命管理信息（14）写入存储介质（1）。该中等寿命管理信息（14）用于确定驱动器（5）或主机（4）中的介质的寿命。由于可以获得与实际读/写状态相对应的管理信息，因此可以准确地检测存储介质的劣化。

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