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21. 发明授权

US08537481B1 Shingled magnetic recording disk drive with minimization of the effect of far track erasure on adjacent data bands 有权
标题翻译：具有最小化远距离擦除对相邻数据带的影响的嵌入式磁记录磁盘驱动器
公开(公告)号：US08537481B1
公开(公告)日：2013-09-17
申请号：US13423177
申请日：2012-03-17
申请人： Zvonimir Z. Bandic , Cyril Guyot , Tomohiro Harayama , Robert Eugeniu Mateescu , Shad Henry Thorstenson , Timothy Kohchih Tsai
发明人： Zvonimir Z. Bandic , Cyril Guyot , Tomohiro Harayama , Robert Eugeniu Mateescu , Shad Henry Thorstenson , Timothy Kohchih Tsai
IPC分类号： G11B27/36
CPC分类号： G11B27/36 , G11B5/012 , G11B20/1258 , G11B20/1816 , G11B2020/10898 , G11B2020/1298
摘要： A shingled magnetic recording (SMR) hard disk drive (HDD) essentially eliminates the effect of far track erasure (FTE) in the boundary regions of annular data bands caused by writing in the boundary regions of adjacent annular data bands. The extent of the FTE effect is determined for each track within a range of tracks of the track being written. Based on the relative FTE effect for all the tracks in the range, a count increment (CI) table or a cumulative count increment (CCI) table is maintained for all the tracks in the range. For every writing to a track in a boundary region, a count for each track in an adjacent boundary region, or a cumulative count for the adjacent boundary region, is increased. When the count reaches a predetermined threshold the data is read from that band and rewritten to the same band.
摘要翻译：磁带录音（SMR）硬盘驱动器（HDD）基本上消除了在相邻环形数据频带的边界区域中写入引起的环形数据频带的边界区域中的远跟踪擦除（FTE）的影响。对正在写入的轨道的轨道范围内的每个轨道确定FTE效果的程度。基于该范围内所有轨道的相对FTE效应，对该范围内的所有轨道维持计数增量（CI）表或累积计数增量（CCI）表。对于对边界区域中的轨迹的每次写入，相邻边界区域中的每个轨道的计数或相邻边界区域的累积计数增加。当计数达到预定阈值时，从该频带读取数据并重写到相同的频带。

22. 发明申请

US20130232292A1 IMPLEMENTING LARGE BLOCK RANDOM WRITE HOT SPARE SSD FOR SMR RAID 有权
标题翻译：实现大型块随机写入热备份SSD用于SMR RAID
公开(公告)号：US20130232292A1
公开(公告)日：2013-09-05
申请号：US13410089
申请日：2012-03-01
申请人： Zvonimir Z. Bandic , Cyril Guyot , Tomohiro Harayama , Hitoshi Kamei , Takaki Nakamura , Timothy Tsai
发明人： Zvonimir Z. Bandic , Cyril Guyot , Tomohiro Harayama , Hitoshi Kamei , Takaki Nakamura , Timothy Tsai
IPC分类号： G06F12/00
CPC分类号： G06F12/0246 , G06F3/061 , G06F3/0611 , G06F3/0619 , G06F3/0632 , G06F3/0634 , G06F3/068 , G06F3/0689 , G11B5/012
摘要： A method and a storage system are provided for implementing a sustained large block random write performance mechanism for shingled magnetic recording (SMR) drives in a redundant array of inexpensive disks (RAID). A Solid State Drive (SSD) is provided with the SMR drives in the RAID. The SSD is used in a hot spare mode, which is activated when a large block random-write event is identified for a SMR drive in the RAID. In the hot spare mode, the SSD temporarily receives new incoming writes for the identified SMR drive. Then the identified SMR drive is updated from the SSD to restore the state of the identified SMR drive, and operations continue with normal writing only using the SMR drives in the RAID.
摘要翻译：提供了一种方法和存储系统，用于实现用于廉价磁盘（RAID）的冗余阵列中的带状磁记录（SMR）驱动器的持续大块随机写入性能机制。固态驱动器（SSD）随RAID中的SMR驱动器一起提供。 SSD用于热备份模式，当为RAID中的SMR驱动器标识大块随机写入事件时，SSD将被激活。在热备用模式下，SSD临时接收所识别的SMR驱动器的新进入写入。然后，从SSD更新所识别的SMR驱动器，以恢复所识别的SMR驱动器的状态，并且只有使用RAID中的SMR驱动器才能正常进行操作。

23. 发明授权

US08793431B2 Shingled magnetic recording disk drive with inter-band disk cache and minimization of the effect of far track erasure on adjacent data bands 有权
标题翻译：带磁带磁记录磁盘驱动器，具有带间磁盘缓存，并将对远程磁道擦除对相邻数据带的影响降至最低
公开(公告)号：US08793431B2
公开(公告)日：2014-07-29
申请号：US13423178
申请日：2012-03-17
申请人： Zvonimir Z. Bandic , Cyril Guyot , Tomohiro Harayama , Robert Eugeniu Mateescu , Shad Henry Thorstenson , Timothy Kohchih Tsai
发明人： Zvonimir Z. Bandic , Cyril Guyot , Tomohiro Harayama , Robert Eugeniu Mateescu , Shad Henry Thorstenson , Timothy Kohchih Tsai
IPC分类号： G06F12/00
CPC分类号： G11B20/10527 , G06F12/0866 , G06F2212/313 , G11B5/012 , G11B20/10388 , G11B20/1879
摘要： A shingled magnetic recording hard disk drive that uses writeable cache tracks in the inter-band gaps between the annular data bands minimizes the effect of far track erasure (FTE) in the boundary regions of annular data bands caused by writing to the cache tracks. Based on the relative FTE effect for all the tracks in a range of tracks of the cache track being written, a count increment (CI) table or a cumulative count increment (CCI) table is maintained. For every writing to a cache track, a count for each track in an adjacent boundary region, or a cumulative count for each adjacent boundary region, is increased. When the count value for a track, or the cumulative count for a boundary region, reaches a predetermined threshold the data is read from that band and rewritten to the same band.
摘要翻译：在环形数据带之间的带间间隙中使用可写入高速缓存轨迹的带状磁记录硬盘驱动器将通过写入高速缓存轨道引起的环形数据带的边界区域中的远轨擦除（FTE）的影响最小化。基于正在写入的高速缓存磁道的磁道范围内的所有磁道的相对FTE效应，保持计数增量（CI）表或累积计数增量（CCI）表。对于对高速缓存轨道的每次写入，相邻边界区域中的每个轨道的计数或每个相邻边界区域的累积计数增加。当轨道的计数值或边界区域的累积计数达到预定阈值时，从该频带读取数据并重写到相同的频带。

24. 发明申请

US20130242426A1 SHINGLED MAGNETIC RECORDING DISK DRIVE WITH MINIMIZATION OF THE EFFECT OF FAR TRACK ERASURE ON ADJACENT DATA BANDS 有权
标题翻译：最小化跟踪擦除对相邻数据库的影响的摇摆磁记录盘驱动器
公开(公告)号：US20130242426A1
公开(公告)日：2013-09-19
申请号：US13423177
申请日：2012-03-17
申请人： Zvonimir Z. Bandic , Cyril Guyot , Tomohiro Harayama , Robert Eugeniu Mateescu , Shad Henry Thorstenson , Timothy Kohchih Tsai
发明人： Zvonimir Z. Bandic , Cyril Guyot , Tomohiro Harayama , Robert Eugeniu Mateescu , Shad Henry Thorstenson , Timothy Kohchih Tsai
IPC分类号： G11B27/36
CPC分类号： G11B27/36 , G11B5/012 , G11B20/1258 , G11B20/1816 , G11B2020/10898 , G11B2020/1298
摘要： A shingled magnetic recording (SMR) hard disk drive (HDD) essentially eliminates the effect of far track erasure (FTE) in the boundary regions of annular data bands caused by writing in the boundary regions of adjacent annular data bands. The extent of the FTE effect is determined for each track within a range of tracks of the track being written. Based on the relative FTE effect for all the tracks in the range, a count increment (CI) table or a cumulative count increment (CCI) table is maintained for all the tracks in the range. For every writing to a track in a boundary region, a count for each track in an adjacent boundary region, or a cumulative count for the adjacent boundary region, is increased. When the count reaches a predetermined threshold the data is read from that band and rewritten to the same band.
摘要翻译：磁带录音（SMR）硬盘驱动器（HDD）基本上消除了在相邻环形数据频带的边界区域中写入引起的环形数据频带的边界区域中的远跟踪擦除（FTE）的影响。对正在写入的轨道的轨道范围内的每个轨道确定FTE效果的程度。基于该范围内所有轨道的相对FTE效应，对该范围内的所有轨道维持计数增量（CI）表或累积计数增量（CCI）表。对于对边界区域中的轨迹的每次写入，相邻边界区域中的每个轨道的计数或相邻边界区域的累积计数增加。当计数达到预定阈值时，从该频带读取数据并重写到相同的频带。

25. 发明授权

US08909859B2 Implementing large block random write hot spare SSD for SMR RAID 有权
标题翻译：为SMR RAID实现大块随机写入热备用SSD
公开(公告)号：US08909859B2
公开(公告)日：2014-12-09
申请号：US13410089
申请日：2012-03-01
申请人： Zvonimir Z. Bandic , Cyril Guyot , Tomohiro Harayama , Hitoshi Kamei , Takaki Nakamura , Timothy Tsai
发明人： Zvonimir Z. Bandic , Cyril Guyot , Tomohiro Harayama , Hitoshi Kamei , Takaki Nakamura , Timothy Tsai
IPC分类号： G06F12/00 , G06F12/02 , G06F3/06
CPC分类号： G06F12/0246 , G06F3/061 , G06F3/0611 , G06F3/0619 , G06F3/0632 , G06F3/0634 , G06F3/068 , G06F3/0689 , G11B5/012
摘要： A method and a storage system are provided for implementing a sustained large block random write performance mechanism for shingled magnetic recording (SMR) drives in a redundant array of inexpensive disks (RAID). A Solid State Drive (SSD) is provided with the SMR drives in the RAID. The SSD is used in a hot spare mode, which is activated when a large block random-write event is identified for a SMR drive in the RAID. In the hot spare mode, the SSD temporarily receives new incoming writes for the identified SMR drive. Then the identified SMR drive is updated from the SSD to restore the state of the identified SMR drive, and operations continue with normal writing only using the SMR drives in the RAID.
摘要翻译：提供了一种方法和存储系统，用于实现用于廉价磁盘（RAID）的冗余阵列中的带状磁记录（SMR）驱动器的持续大块随机写入性能机制。固态驱动器（SSD）随RAID中的SMR驱动器一起提供。 SSD用于热备份模式，当为RAID中的SMR驱动器标识大块随机写入事件时，SSD将被激活。在热备用模式下，SSD临时接收所识别的SMR驱动器的新进入写入。然后，从SSD更新所识别的SMR驱动器，以恢复所识别的SMR驱动器的状态，并且只有使用RAID中的SMR驱动器才能正常进行操作。

26. 发明授权

US08838841B2 Method and structure enabling improved native command queueing in a data storage device 有权
标题翻译：能够改进数据存储设备中的本机命令排队的方法和结构
公开(公告)号：US08838841B2
公开(公告)日：2014-09-16
申请号：US13561156
申请日：2012-07-30
申请人： Cyril Guyot , Timothy K. Tsai
发明人： Cyril Guyot , Timothy K. Tsai
IPC分类号： G06F3/00
CPC分类号： G11B5/5547
摘要： A data storage device accepts read and write commands with absolute command completion times based on queue-depth-of-one (qd=1) execution and stores them in an unsequenced commands memory. These commands are requests to access the data storage device and contain both locations on the storage medium where the data is located and whether the requested operation is read or write. For each pair of first and second commands in the memory, the time between execution of the first command and the second command is calculated and stored. A command selector then reads data from the memory based on a resequencing NCQ algorithm which inserts one or more commands from the command memory into the original qd=1 sequence whenever this insertion will not affect the execution time of commands in the original qd=1 sequence. The resequencing algorithm of the present invention increases IOPS and reduced read head actuator travel and wear.
摘要翻译：数据存储设备基于队列深度一（qd = 1）执行接收具有绝对命令完成时间的读写命令，并将它们存储在未排序的命令存储器中。这些命令是访问数据存储设备的请求，并且在数据所在的存储介质上包含两个位置以及请求的操作是被读取还是写入。对于存储器中的每对第一和第二命令，计算并存储执行第一命令和第二命令之间的时间。然后，命令选择器基于重新排序的NCQ算法从存储器中读取数据，其将一个或多个命令从命令存储器插入到原始qd = 1序列中，只要该插入不会影响原始qd = 1序列中的命令的执行时间。本发明的重新排序算法增加了IOPS并减少了读头致动器行程和磨损。

27. 发明申请

US20130194864A1 IMPLEMENTING ENHANCED DATA WRITE FOR MULTI-LEVEL CELL (MLC) MEMORY USING THRESHOLD VOLTAGE-DRIFT OR RESISTANCE DRIFT TOLERANT MOVING BASELINE MEMORY DATA ENCODING 有权
标题翻译：使用阈值电压缓冲或电阻干扰来实现多电平（MLC）存储器的增强数据写入容错移动基线存储器数据编码
公开(公告)号：US20130194864A1
公开(公告)日：2013-08-01
申请号：US13361905
申请日：2012-01-30
申请人： Zvonimir Z. Bandic , Luiz M. Franca-Neto , Cyril Guyot , Robert Eugeniu Mateescu
发明人： Zvonimir Z. Bandic , Luiz M. Franca-Neto , Cyril Guyot , Robert Eugeniu Mateescu
IPC分类号： G11C16/10
CPC分类号： G11C16/0483 , G11C11/5628 , G11C11/5678 , G11C13/0035 , G11C13/0069 , G11C16/3418 , G11C16/349 , G11C17/146 , G11C2013/0076
摘要： A method and apparatus are provided for implementing enhanced performance for multi-level cell (MLC) memory using threshold-voltage-drift or resistance-drift tolerant moving baseline memory data encoding. A voltage baseline of a prior write is identified, and a data write uses the threshold-voltage-drift or resistance-drift tolerant moving baseline memory data encoding for data being written to the MLC memory responsive to the identified voltage baseline.
摘要翻译：提供了一种使用阈值电压漂移或电阻漂移容许移动基线存储器数据编码来实现多电平单元（MLC）存储器的增强性能的方法和装置。识别先前写入的电压基线，并且数据写入使用阈值电压漂移或电阻漂移容许移动基线存储器数据编码，以响应于所识别的电压基线而写入到MLC存储器中的数据。

28. 发明授权

US08874875B2 ICC-NCQ command scheduling for shingle-written magnetic recording (SMR) Drives 有权
标题翻译：用于瓦楞纸磁记录（SMR）驱动器的ICC-NCQ命令调度
公开(公告)号：US08874875B2
公开(公告)日：2014-10-28
申请号：US13537293
申请日：2012-06-29
申请人： Zvonimir Z. Bandic , Cyril Guyot
发明人： Zvonimir Z. Bandic , Cyril Guyot
IPC分类号： G06F12/10 , G06F12/02
CPC分类号： G06F12/0292 , G06F12/0253 , G06F12/08 , G06F12/0875 , G06F12/10 , G11B5/012
摘要： ICC-NCQ priority and deadline information in conjunction with an estimation of command access time that is specific to SMR drives are used improve command queue optimization. Estimated completion times are determined based on the internal subcommands that the drive has to execute to complete the host read or write command taking into account whether all or part of the data will be or already is stored in write-twice cache, E-region and/or I-region. The command processor selects the next command for execution based on calculated access times with adjusted priority based on the specified deadline for the command. As the deadline approaches, the priority of the command increases. For high priority data writes as specified by a host, an optimized storage plan is selected as appropriate using the “write-twice cache” (WTC) region, E-region or I-region.
摘要翻译：使用ICC-NCQ优先级和截止日期信息以及特定于SMR驱动器的命令访问时间的估计来改进命令队列优化。估计的完成时间是基于驱动器执行的内部子命令来确定的，以完成主机读或写命令，考虑到全部或部分数据是否已经存储在二次写入高速缓存，E区和 /或I区域。命令处理器根据计划的访问次数，根据指定的最终期限，选择下一个执行命令，并以调整的优先级。随着截止日期的到来，命令的优先级增加。对于由主机指定的高优先级数据写入，使用“两倍写入高速缓存”（WTC）区域，E区域或I区域，适当地选择优化的存储方案。

29. 发明申请

US20140002922A1 Failure-Resistant Multi-LUN Hard Disk Drive 有权
标题翻译：防故障多LUN硬盘驱动器
公开(公告)号：US20140002922A1
公开(公告)日：2014-01-02
申请号：US13536103
申请日：2012-06-28
申请人： Zvonimir Z. Bandic , Cyril Guyot
发明人： Zvonimir Z. Bandic , Cyril Guyot
IPC分类号： G11B21/02 , G11B15/04
CPC分类号： G06F3/0676 , G06F3/0613 , G06F3/0658 , G06F3/0659 , G11B20/1217
摘要： Approaches are provided for a hard-disk drive (HDD) and techniques for using multiple LUNs per HDD where each LUN is mapped to a head/disk interface. In one example, a HDD generates multiple LUNs and assigns each to a single head, such that data written by a first head is only associated to a first LUN, and so forth.
摘要翻译：提供硬盘驱动器（HDD）的方法以及每个HDD使用多个LUN的技术，其中每个LUN映射到磁头/磁盘接口。在一个示例中，HDD生成多个LUN并将其分配给单个头，使得由第一头写入的数据仅与第一LUN相关联等等。

30. 发明申请

US20130198436A1 IMPLEMENTING ENHANCED DATA PARTIAL-ERASE FOR MULTI-LEVEL CELL (MLC) MEMORY USING THRESHOLD VOLTAGE-DRIFT OR RESISTANCE DRIFT TOLERANT MOVING BASELINE MEMORY DATA ENCODING 有权
标题翻译：使用阈值电压缓冲或电阻干扰实现增强数据部分删除多电平（MLC）存储器容错移动基线存储器数据编码
公开(公告)号：US20130198436A1
公开(公告)日：2013-08-01
申请号：US13361925
申请日：2012-01-30
申请人： Zvonimir Z. Bandic , Luiz M. Franca-Neto , Cyril Guyot , Robert Eugeniu Mateescu
发明人： Zvonimir Z. Bandic , Luiz M. Franca-Neto , Cyril Guyot , Robert Eugeniu Mateescu
IPC分类号： G06F12/00 , G11C11/00 , G11C16/04
CPC分类号： G11C16/16 , G11C11/5635 , G11C11/5678 , G11C13/0035 , G11C13/0097 , G11C16/349 , G11C2013/0076
摘要： A method and apparatus are provided for implementing enhanced data partial erase for multi-level cell (MLC) memory using threshold-voltage-drift or resistance-drift tolerant moving baseline memory data encoding. A data partial erase for data written to the MLC memory using threshold-voltage-drift or resistance-drift tolerant moving baseline memory data encoding is performed, and a data re-write after the partial erase to the MLC memory is performed using threshold-voltage-drift or resistance-drift tolerant moving baseline memory data encoding. A data partial erase cycle includes a duration and voltage level based upon a degradation of the MLC memory cells.
摘要翻译：提供了一种使用阈值电压漂移或电阻漂移容许移动基线存储器数据编码来实现用于多电平单元（MLC）存储器的增强型数据部分擦除的方法和装置。执行使用阈值电压漂移或电阻漂移容许移动基线存储器数据编码写入MLC存储器的数据的数据部分擦除，并且使用阈值电压来执行对MLC存储器的部分擦除之后的数据重写驱动或电阻漂移运动基线存储器数据编码。数据部分擦除周期包括基于MLC存储器单元的劣化的持续时间和电压电平。

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