公开(公告)号：US09666228B2

公开(公告)日：2017-05-30

申请号：US15153562

申请日：2016-05-12

申请人： Seagate Technology LLC

发明人： Rekha Pitchumani ,  James Hughes

IPC分类号： G11B5/012 ,  G11B20/12 ,  G11B20/10

CPC分类号： G11B20/1217 ,  G11B20/10527 ,  G11B2020/1238 ,  G11B2020/1257 ,  G11B2020/1292

摘要： Implementations disclosed herein provide a method comprising storing data in a two level key-value data store in an SMR storage device, wherein a first level of the data store comprises a journal of incoming host operations and a second level of the data store comprises a plurality of ordered data stores, ordered based on a predetermined ordering criterion.

公开(公告)号：US5132853A

公开(公告)日：1992-07-21

申请号：US504529

申请日：1990-04-04

申请人： John E. Kulakowski ,  Rodney J. Means

发明人： John E. Kulakowski ,  Rodney J. Means

IPC分类号： G06F3/06 ,  G11B20/12 ,  G11B20/18

CPC分类号： G06F3/0601 ,  G11B20/1252 ,  G11B20/1883 ,  G06F2003/0697 ,  G11B2020/1257 ,  G11B2220/20

摘要： A large capacity data storing disk includes a volume table of contents (VTOC) which identifies allocated ones of data storage tracks and identification of the data contents therein, indications of unallocated data storage track and an indication of which of the data storage tracks on the large capacity disk surface are unformatted. The indications may also include indications of unallocated "erased" tracks that do not contain data residuals from previous recordings. Those unallocated tracks having such erased condition in a count key data record format (CKD) require a home address record on each of the formatted tracks. The home address record may include indications of rotational position of defects to be skipped over during the recording and readback operations. A specific embodiment of the invention using a magnetooptic record medium is described.

摘要翻译： 大容量数据存储盘包括容纳内容表（VTOC），其识别分配的数据存储轨道和其中的数据内容的标识，未分配的数据存储轨迹的指示和大的数据存储轨道的指示 容量磁盘表面未格式化。 指示还可以包括不包含先前记录的数据残差的未分配“擦除”轨道的指示。 在计数密钥数据记录格式（CKD）中具有这种擦除条件的那些未分配的轨道需要每个格式化的轨道上的归属地址记录。 归属地址记录可以包括在记录和回读操作期间要跳过的缺陷的旋转位置的指示。 描述了使用磁光记录介质的本发明的具体实施例。

公开(公告)号：US20060129901A1

公开(公告)日：2006-06-15

申请号：US11085540

申请日：2005-03-22

申请人： Nina Arataki ,  Sadayuki Ohyama

发明人： Nina Arataki ,  Sadayuki Ohyama

IPC分类号： H03M13/00

CPC分类号： G11B20/1217 ,  G06F11/1064 ,  G11B2020/1255 ,  G11B2020/1257 ,  G11B2220/415

摘要： A method of writing data includes receiving a record of a variable-length data format, creating a field-checking code for each field of the record received, creating a block-checking code in units of the fixed-length data for the data received, and writing data by reading the record, assembling fixed length data that includes the field-checking code and the block-checking code by using the field-checking code and the block-checking code, and transferring the data to a cache memory.

公开(公告)号：US5526211A

公开(公告)日：1996-06-11

申请号：US472598

申请日：1995-06-07

申请人： Steven R. Hetzler

发明人： Steven R. Hetzler

IPC分类号： G11B20/10 ,  G11B20/12 ,  G11B20/14 ,  G11B21/10 ,  G11B27/30 ,  G11B5/82 ,  G11B5/09 ,  G11B5/596

CPC分类号： G11B20/10 ,  G11B20/1201 ,  G11B20/1258 ,  G11B27/3027 ,  G11B5/59655 ,  G11B2020/1087 ,  G11B2020/10879 ,  G11B2020/10916 ,  G11B2020/1257 ,  G11B2020/1282 ,  G11B2220/20 ,  G11B2220/90

摘要： A method and means is described wherein servo sectors written on a disk (or servo sections written on a tape) are equally spaced on a given track and read during seek, settle and track following operations. An algorithm is used to determine the allowable time separation between servo sectors (or sections) on a track and lengths of associated data sections, such as data sectors or variable length records, that may be accommodated on the disk or tape in such manner that each of the servo sectors (or sections) equally spaced on a given track is located within a data field of a data sector or within an identification region or immediately after an address indicating mark (such as address mark or index mark). The rate at which the servo sector (or section) is sampled is constant and independent of the number and lengths of the data sections. As a result of this independent relationship, this technique is suitable for CLD recording, to banded disks using sectored servo as in conventional FBA, and also even to non-sectored architectures, such as count-key-data (CKD), wherein the data is written in records of variable length, and to tape drives formatted in FBA or CKD.

摘要翻译： 描述了一种方法和装置，其中写在磁盘上的伺服扇区（或写在磁带上的伺服部分）在给定磁道上等间隔，并在寻道，定位和跟踪跟随操作期间读取。 使用算法来确定轨道上的伺服扇区（或部分）和可以容纳在磁盘或磁带上的相关联的数据段（例如数据扇区或可变长度记录）的长度之间的允许时间间隔，使得每个 在给定磁道上等距间隔的伺服扇区（或部分）位于数据扇区的数据区域内或位于识别区域内，或位于地址指示标记（例如地址标记或索引标记）之后。 伺服扇区（或部分）采样的速率是恒定的，与数据段的数量和长度无关。 作为这种独立关系的结果，该技术适用于CLD记录，使用传统FBA中的分区伺服的带状磁盘，甚至适用于诸如计数密钥数据（CKD）的非分段架构，其中数据 以可变长度记录，以及以FBA或CKD格式化的磁带驱动器。

公开(公告)号：US4833679A

公开(公告)日：1989-05-23

申请号：US91482

申请日：1987-08-31

申请人： Robert W. Anderson ,  Ralph L. Gee ,  Jasper A. Indelicato ,  Arvind M. Patel

发明人： Robert W. Anderson ,  Ralph L. Gee ,  Jasper A. Indelicato ,  Arvind M. Patel

IPC分类号： H03M13/00 ,  G11B20/12 ,  G11B20/18

CPC分类号： G11B20/1252 ,  G11B20/1809 ,  G11B2020/1257 ,  G11B2220/20

摘要： A method and apparatus is disclosed that is selectively conditionable, during read processing, to operate in normal or diagnostic on-the-fly mode or in normal or diagnostic deferred mode to correct errors in encoded uncorrected data in a disk storage device. During deferred mode operation, hardware in the disk storage device receives uncorrected data in real time and generates syndrome bytes which are decoded at the device into error pattern and error location information that is transmitted to a storage director. Circuitry is provided for retaining, if desired, error pattern and location information to facilitate identification of surface defects in the storage disk whether read processing was done on-the-fly or in deferred mode.

公开(公告)号：US5285327A

公开(公告)日：1994-02-08

申请号：US58348

申请日：1993-05-05

申请人： Steven R. Hetzler

发明人： Steven R. Hetzler

IPC分类号： G11B20/10 ,  G11B20/12 ,  G11B20/14 ,  G11B21/10 ,  G11B27/30 ,  G11B5/09 ,  G11B5/596 ,  G11B15/52 ,  G11B27/22

CPC分类号： G11B20/10 ,  G11B20/1201 ,  G11B20/1258 ,  G11B27/3027 ,  G11B5/59655 ,  G11B2020/1087 ,  G11B2020/10879 ,  G11B2020/10916 ,  G11B2020/1257 ,  G11B2020/1282 ,  G11B2220/20 ,  G11B2220/90

摘要： A method and means is described wherein servo sectors written on a disk (or servo sections written on a tape) are equally spaced on a given track and read during seek, settle and track following operations. An algorithm is used to determine the allowable time separation between servo sectors (or sections) on a track and lengths of associated data sections, such as data sectors or variable length records, that may be accommodated on the disk or tape in such manner that each of the servo sectors (or sections) equally spaced on a given track is located within a data field of a data sector or within an identification region or immediately after an address indicating mark (such as address mark or index mark). The rate at which the servo sector (or section) is sampled is constant and independent of the number and lengths of the data sections. As a result of this independent relationship, this technique is suitable for CLD recording, to banded disks using sectored servo as in conventional FBA, and also even to non-sectored architectures, such as count-key-data (CKD), wherein the data is written in records of variable length, and to tape drives formatted in FBA or CKD.

摘要翻译： 描述了一种方法和装置，其中写在磁盘上的伺服扇区（或写在磁带上的伺服部分）在给定磁道上等间隔，并在寻道，定位和跟踪跟随操作期间读取。 使用算法来确定轨道上的伺服扇区（或部分）和可以容纳在磁盘或磁带上的相关联的数据段（例如数据扇区或可变长度记录）的长度之间的允许时间间隔，使得每个 在给定磁道上等距间隔的伺服扇区（或部分）位于数据扇区的数据区域内或位于识别区域内，或位于地址指示标记（例如地址标记或索引标记）之后。 伺服扇区（或部分）采样的速率是恒定的，与数据段的数量和长度无关。 作为这种独立关系的结果，该技术适用于CLD记录，使用传统FBA中的分区伺服的带状磁盘，甚至适用于诸如计数密钥数据（CKD）的非分段架构，其中数据 以可变长度记录，以及以FBA或CKD格式化的磁带驱动器。

公开(公告)号：US5210660A

公开(公告)日：1993-05-11

申请号：US466194

申请日：1990-01-17

申请人： Steven R. Hetzler

发明人： Steven R. Hetzler

IPC分类号： G11B20/10 ,  G11B20/12 ,  G11B20/14 ,  G11B21/10 ,  G11B27/30

CPC分类号： G11B20/10 ,  G11B20/1201 ,  G11B20/1258 ,  G11B27/3027 ,  G11B5/59655 ,  G11B2020/1087 ,  G11B2020/10879 ,  G11B2020/10916 ,  G11B2020/1257 ,  G11B2020/1282 ,  G11B2220/20 ,  G11B2220/90

摘要： A data recording apparatus, such as a disk drive or tape drive is described wherein servo sectors written on a disk (or servo sections written on a tape) are equally spaced on a given track and read during seek, settle and track following operations. An algorithm is used to determine the allowable time separation between servo sectors (or sections) on a track and lengths of associated data sections, such as data sectors or variable length records, that may be accommodated on the disk or tape in such manner that each of the servo sectors (or sections) equally spaced on a given track is located within a data field of a data sector or within an identification region or immediately after an address indicating mark (such as address mark or index mark). The rate at which the servo sector (or section) is sampled is constant and independent of the number and lengths of the data sections. As a result of this independent relationship, this technique is suitable for CLD recording, to banded disks using sectored servo as in conventional FBA, and also even to non-sectored architectures, such as count-key-data (CKD), wherein the data is written in records of variable length, and to tape drives formatted in FBA or CKD.

公开(公告)号：US4939598A

公开(公告)日：1990-07-03

申请号：US153673

申请日：1988-02-08

申请人： John E. Kulakowski ,  Rodney J. Means

发明人： John E. Kulakowski ,  Rodney J. Means

IPC分类号： G06F3/06 ,  G06F12/00 ,  G11B20/12 ,  G11B20/18

CPC分类号： G06F3/0601 ,  G11B20/1252 ,  G11B20/1883 ,  G06F2003/0697 ,  G11B2020/1257 ,  G11B2220/20

摘要： A large capacity data storing disk includes a volume table of contents (VTOC) which identifies allocated ones of data storage tracks and identification of the data contents therein, indications of unallocated data storage track and an indication of which of the data storage tracks on the large capacity disk surface are unformatted. The indications may also include indications of unallocated "erased" tracks that do not contain data residuals from previous recordings. Those unallocated tracks having such erased condition in a count key data record format (CKD) require a home address record on each of the formatted tracks. The home address record may include indications of rotational position of defects to be skipped over during the recording and readback operations. A specific embodiment of the invention using a magnetooptic record medium is described.

公开(公告)号：US4527273A

公开(公告)日：1985-07-02

申请号：US434889

申请日：1982-10-18

申请人： Yasumori Hibi ,  Hideo Matsuura

发明人： Yasumori Hibi ,  Hideo Matsuura

IPC分类号： H03M13/00 ,  G06F3/06 ,  G11B19/04 ,  G11B19/12 ,  G11B20/12 ,  G11B20/18 ,  G06F11/10

CPC分类号： G11B19/04 ,  G06F3/0601 ,  G11B20/1262 ,  G11B20/18 ,  G11B20/1816 ,  G06F2003/0692 ,  G11B2020/1087 ,  G11B2020/10879 ,  G11B2020/1257 ,  G11B2020/183 ,  G11B2220/2508

摘要： In a magnetic disc device, track bytes are added to a record which is to be stored in a cylinder of a magnetic disc in order to utilize additional magnetic disc devices of a different type in the same manner as the first-mentioned magnetic disc device. The magnetic disc device provides track byte check device which checks track bytes read from the record for errors, stores the track bytes in a track byte register when they are correct, and, if the stored track bytes are re-read, utilizes the correct contents stored in the track byte register as the track bytes of the record.

摘要翻译： 在磁盘装置中，磁道字节被添加到要存储在磁盘的磁盘中的记录，以便以与首次提到的磁盘装置相同的方式利用不同类型的附加磁盘装置。 磁盘装置提供轨道字节检查装置，其检查从记录读取的磁道字节的错误，当它们正确时将磁道字节存储在磁道字节寄存器中，并且如果存储的磁道字节被重新读取，则使用正确的内容 存储在轨道字节寄存器中作为记录的轨道字节。

公开(公告)号：US20160260456A1

公开(公告)日：2016-09-08

申请号：US15153562

申请日：2016-05-12

申请人： Seagate Technology LLC

发明人： Rekha Pitchumani ,  James Hughes

IPC分类号： G11B20/12

CPC分类号： G11B20/1217 ,  G11B20/10527 ,  G11B2020/1238 ,  G11B2020/1257 ,  G11B2020/1292

摘要： Implementations disclosed herein provide a method comprising storing data in a two level key-value data store in an SMR storage device, wherein a first level of the data store comprises a journal of incoming host operations and a second level of the data store comprises a plurality of ordered data stores, ordered based on a predetermined ordering criterion.

摘要翻译： 本文公开的实施方案提供了一种方法，包括将数据存储在SMR存储设备中的两级密钥值数据存储中，其中数据存储的第一级包括输入主机操作的日志，并且数据存储的第二级包括多个 的有序数据存储，根据预定的排序标准排序。