-
1.发明专利Method, device and program for migrating input/output operation by using secondary communication port of sequential access data storage device 有权通过使用连续访问数据存储设备的二次通信端口来进行输入/输出操作的方法，设备和程序
公开(公告)号：JP2007287152A
公开(公告)日：2007-11-01
申请号：JP2007105342
申请日：2007-04-12
Applicant: Internatl Business Mach Corp
, インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation Inventor： KARP JAMES MITCHELL , GRECO PAUL M , JAQUETTE GLEN ALAN
CPC classification number: G06F3/0647 , G06F3/061 , G06F3/0634 , G06F3/065 , G06F3/067 , G06F11/1451
Abstract: PROBLEM TO BE SOLVED: To migrate intput/output (I/O) operation by using a secondary communication port of a sequential access data storage device. SOLUTION: A method, system, and device for migrating the intput/output (I/O) operation by using the secondary communication port of the sequential access data storage device are provided with: a step for receiving an input/output (I/O) operation request via a first communication port of a primary data storage device; a step for processing the I/O operation request by using the primary data storage device; and a step for migrating the I/O operation request to a secondary data storage device via a second communication port of the primary data storage device virtually at the same time as the previous processing. The primary data storage device is provided with the sequential access data storage device. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题：通过使用顺序访问数据存储设备的辅助通信端口来迁移输入/输出（I / O）操作。 解决方案：用于通过使用顺序访问数据存储设备的辅助通信端口来迁移输入/输出（I / O）操作的方法，系统和设备提供有：用于接收输入/输出（I / I / O）操作请求，经由主数据存储装置的第一通信端口; 通过使用主数据存储装置来处理I / O操作请求的步骤; 以及与先前处理同时地虚拟地经由主数据存储装置的第二通信端口将I / O操作请求迁移到辅助数据存储装置的步骤。 主数据存储装置具有顺序访问数据存储装置。 版权所有（C）2008，JPO＆INPIT
-
2.发明专利Tape head and tape drive system (progressive track width head and method) 审中-公开磁带和磁带驱动系统（进步轨道宽度和方法）
公开(公告)号：JP2008097810A
公开(公告)日：2008-04-24
申请号：JP2007263959
申请日：2007-10-10
Applicant: Internatl Business Mach Corp
, インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation Inventor： BISKEBORN ROBERT GLENN , KARP JAMES MITCHELL
CPC classification number: G11B5/29 , G11B5/00826 , G11B5/5926
Abstract: PROBLEM TO BE SOLVED: To compensate for tape lateral expansion and contraction about a head having readers with a track width that changes. SOLUTION: A tape head 300 according to one embodiment includes an array of readers, each of the readers having a track width TW, wherein the track width of an inner reader 308 of the array is greater than the track width of an outer reader 306 relative thereto. A tape head, according to another embodiment, includes an array of readers, with each of the readers having a track width, wherein the track width of at least some of the readers progressively decrease, in a direction along the array from a middle of the array towards an end of the array. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题：为了补偿具有变化的轨道宽度的读取器的头部的带横向膨胀和收缩。 解决方案：根据一个实施例的磁带头300包括读取器阵列，每个读取器具有轨道宽度TW，其中阵列的内部读取器308的轨道宽度大于外部的轨道宽度 阅读器306。 根据另一实施例的磁带头包括读取器阵列，其中每个读取器具有轨道宽度，其中读取器中的至少一些读取器的轨道宽度在从阵列的中间沿着阵列的方向逐渐减小 阵列朝向阵列的一端。 版权所有（C）2008，JPO＆INPIT
-
公开(公告)号：CA2443529A1
公开(公告)日：2003-02-06
申请号：CA2443529
申请日：2002-07-19
Applicant: IBM
Inventor： GALLO FRANK DAVID , KARP JAMES MITCHELL
Abstract: A portable data storage drive cartridge has external interfaces positioned respectively at opposite ends of a cartridge shell. They may be arranged to be similar when the cartridge is rotated end over end to a reverse direction wi th respect to the opposite ends. A data storage drive, such as a magnetic disk drive assembly, having an interface, is positioned in the cartridge shell wi th the drive interface positioned toward a first end and away from a second end of the opposite ends of the cartridge shell. Flex cables extend from the dri ve interface, a first extending from the drive interface around the drive to th e external interface at the second end of the cartridge shell, and a second extending from the drive interface, initially around the drive toward the second end, and reversing direction and extending back to the external interface at the first end of the cartridge shell.
-
公开(公告)号：GB2400972A
公开(公告)日：2004-10-27
申请号：GB0418054
申请日：2003-01-17
Applicant: IBM
Inventor： JAQUETTE GLEN ALAN , GRECO PAUL MERRILL , KARP JAMES MITCHELL
Abstract: Synchronized data is written to magnetic tape while reducing the number of backhitches. A controller detects a pattern of synchronizing events for received data records to be written to tape; writes each transaction of data records to the magnetic tape; accumulates the synchronized transactions in a buffer; and subsequently recursively writes the accumulated transactions of data records from the buffer to the magnetic tape in a sequence. A single backhitch may be employed to place the recursively written accumulated data records following the preceding data, maximizing performance and capacity.
-
公开(公告)号：AU623724B2
公开(公告)日：1992-05-21
申请号：AU4766090
申请日：1990-01-03
Applicant: IBM
Abstract: A record medium, such as a magnetic tape, optical disk, magnetic disk, and the like stores data signals and error redundancy signals. Re-synchronisation signals are interleaved between the recorded signals such that the error redundancy signals are usable to correct signals recorded between such interposed re-synchronisation signals wherein no error redundancy signals are recorded. Error pointing redundancy signals are recorded between all of the re-synchronisation signals for pointing to signals in error for enhancing the error correction. Such error pointing signals can be cyclic redundancy check (CRC) signals. Controls for taking advantage of the above-described arrangement are also described. Reframing and clock synchronisation controls are also disclosed.
-
Patent Agency Ranking
公开(公告)号：AU4766090A
公开(公告)日：1990-11-01
申请号：AU4766090
申请日：1990-01-03
Applicant: IBM
Abstract: A record medium, such as a magnetic tape, optical disk, magnetic disk, and the like stores data signals and error redundancy signals. Re-synchronisation signals are interleaved between the recorded signals such that the error redundancy signals are usable to correct signals recorded between such interposed re-synchronisation signals wherein no error redundancy signals are recorded. Error pointing redundancy signals are recorded between all of the re-synchronisation signals for pointing to signals in error for enhancing the error correction. Such error pointing signals can be cyclic redundancy check (CRC) signals. Controls for taking advantage of the above-described arrangement are also described. Reframing and clock synchronisation controls are also disclosed.
-
公开(公告)号：CA2112452C
公开(公告)日：1998-05-05
申请号：CA2112452
申请日：1989-10-02
Applicant: IBM
IPC: G06F11/10
Abstract: A record medium, such as a magnetic tape, optical disk, magnetic disk, and the like stores data signals and error redundancy signals. Resynchronization signals are inter-leaved between the recorded signals such that the error redundancy signals are usable to correct signals recorded between such interposed resynchronization signals wherein no error redundancy signals are recorded. Error pointing redundancy signals are recorded between all of the resynchro-nization signals for pointing to signals in error for enhancing the error correction. Such error pointing signals can be cyclic redundancy check (CRC) signals. Controls for taking advantage of the above-described arrangement are also described. Reframing and clock synchronization controls are also disclosed.
-
公开(公告)号：DE69019590T2
公开(公告)日：1996-01-18
申请号：DE69019590
申请日：1990-03-08
Applicant: IBM
Abstract: A record medium, such as a magnetic tape, optical disk, magnetic disk, and the like stores data signals and error redundancy signals. Re-synchronisation signals are interleaved between the recorded signals such that the error redundancy signals are usable to correct signals recorded between such interposed re-synchronisation signals wherein no error redundancy signals are recorded. Error pointing redundancy signals are recorded between all of the re-synchronisation signals for pointing to signals in error for enhancing the error correction. Such error pointing signals can be cyclic redundancy check (CRC) signals. Controls for taking advantage of the above-described arrangement are also described. Reframing and clock synchronisation controls are also disclosed.
-
公开(公告)号：BR9001936A
公开(公告)日：1991-07-30
申请号：BR9001936
申请日：1990-04-26
Applicant: IBM
Abstract: A record medium, such as a magnetic tape, optical disk, magnetic disk, and the like stores data signals and error redundancy signals. Re-synchronisation signals are interleaved between the recorded signals such that the error redundancy signals are usable to correct signals recorded between such interposed re-synchronisation signals wherein no error redundancy signals are recorded. Error pointing redundancy signals are recorded between all of the re-synchronisation signals for pointing to signals in error for enhancing the error correction. Such error pointing signals can be cyclic redundancy check (CRC) signals. Controls for taking advantage of the above-described arrangement are also described. Reframing and clock synchronisation controls are also disclosed.
-
公开(公告)号：GB2400972B
公开(公告)日：2005-12-14
申请号：GB0418054
申请日：2003-01-17
Applicant: IBM
Inventor： JAQUETTE GLEN ALAN , GRECO PAUL MERRILL , KARP JAMES MITCHELL
Abstract: Synchronized data is written to magnetic tape while reducing the number of backhitches. A controller detects a pattern of synchronizing events for received data records to be written to tape; writes each transaction of data records to the magnetic; tape; accumulates the synchronized transactions in a buffer; and subsequently recursively writes the accumulated transactions of data records from the buffer to the magnetic tape in a sequence. A single backhitch may be employed to place the recursively written accumulated data records following the preceding data, maximizing performance and capacity.
-
-
-
-
-
-
-
-
-
Search Results
14
records
(took 0.017 seconds)
