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1. 发明授权

US08850128B2 Implementing data storage and dual port, dual-element storage device 有权
标题翻译：实现数据存储和双端口双元素存储设备
公开(公告)号：US08850128B2
公开(公告)日：2014-09-30
申请号：US12646726
申请日：2009-12-23
申请人： Frank R. Chu , Spencer W. Ng , Motoyasu Tsunoda , Marco Sanvido
发明人： Frank R. Chu , Spencer W. Ng , Motoyasu Tsunoda , Marco Sanvido
IPC分类号： G06F12/10 , G06F3/06
CPC分类号： G06F3/0658 , G06F3/0626 , G06F3/0635 , G06F3/068
摘要： A method for implementing data storage and a dual port, dual element storage device are provided. A storage device includes a predefined form factor including a first port and a second port, and a first storage element and a second storage element. A controller coupled between the first port and second port, and the first storage element and second storage element controls access and provides two separate data paths to the first storage element and second storage element.
摘要翻译：提供了实现数据存储的方法和双端口双元素存储设备。存储装置包括预定义的形状因子，包括第一端口和第二端口，以及第一存储元件和第二存储元件。耦合在第一端口和第二端口之间的控制器，并且第一存储元件和第二存储元件控制访问，并且提供到第一存储元件和第二存储元件的两个单独的数据路径。

2. 发明授权

US08024515B2 Non-volatile cache in disk drive emulation 有权
标题翻译：磁盘驱动器仿真中的非易失性缓存
公开(公告)号：US08024515B2
公开(公告)日：2011-09-20
申请号：US11952534
申请日：2007-12-07
申请人： Daniel J. Auerbach , Spencer W. Ng
发明人： Daniel J. Auerbach , Spencer W. Ng
IPC分类号： G06F13/00
CPC分类号： G06F12/0804 , G06F3/061 , G06F3/0625 , G06F3/064 , G06F3/0656 , G06F3/068 , G06F12/0866 , G06F2212/221 , G06F2212/222 , G06F2212/461 , Y02D10/13 , Y02D10/154
摘要： A method and apparatus for deferring media writes for emulation drives are provided. By deferring media writes using non-volatile storage, the performance penalty associated with RMW operations may be minimized. Deferring writes may allow the RMW operations to be done while the disk drive is idle. Further, deferring writes may also allow data blocks to be accumulated over time, allowing a full (4K) disk drive block size to be written with a simple write operation, thus making a RMW unnecessary.
摘要翻译：提供了用于推迟用于仿真驱动器的媒体写入的方法和装置。通过使用非易失性存储推迟媒体写入，可能会使与RMW操作相关的性能损失最小化。延迟写入可能允许在磁盘驱动器空闲时完成RMW操作。此外，延迟写入还可以允许随时间累积数据块，从而允许用简单的写入操作来写入完整的（4K）磁盘驱动器块大小，从而使得RMW不必要。

3. 发明授权

US07545596B2 System and method for WORM magnetic recording 失效
标题翻译： WORM磁记录系统和方法
公开(公告)号：US07545596B2
公开(公告)日：2009-06-09
申请号：US11324575
申请日：2006-01-03
申请人： Spencer W. Ng , Richard Michael Hamilton New , Bruce Wilson
发明人： Spencer W. Ng , Richard Michael Hamilton New , Bruce Wilson
IPC分类号： G11B15/04
CPC分类号： G11B5/012 , G11B20/1426 , G11B2005/0002
摘要： WORM safeguards are provided in a magnetic disk drive in which the disks are pre-magnetized or pre-recorded such that all magnetic domains on each recording surface are completely aligned pointing in the same direction. A special write head which can magnetically write only in the direction opposite to the pre-magnetization orientation is also provided.
摘要翻译：在磁盘驱动器中提供WORM保护，其中磁盘被预磁化或预先记录，使得每个记录表面上的所有磁畴完全对齐指向相同的方向。还提供了可以仅在与预磁化取向相反的方向磁性写入的特殊写头。

4. 发明申请

US20080024899A1 DISK DRIVE WITH NONVOLATILE MEMORY HAVING MULTIPLE MODES OF OPERATION 失效
标题翻译：具有多种操作模式的非易失性存储器的磁盘驱动器
公开(公告)号：US20080024899A1
公开(公告)日：2008-01-31
申请号：US11460247
申请日：2006-07-27
申请人： Frank R. Chu , Richard M.H. New , Spencer W. Ng , Motoyasu Tsunoda
发明人： Frank R. Chu , Richard M.H. New , Spencer W. Ng , Motoyasu Tsunoda
IPC分类号： G11B19/02 , G11B15/04
CPC分类号： G06F3/0646 , G06F3/0614 , G06F3/068 , G06F12/0866 , G06F2212/217 , G11B5/012 , G11B5/59694 , Y02D10/13
摘要： A hybrid disk drive, i.e., a disk drive with two types of permanent storage media (conventional disk media and nonvolatile memory, such as flash memory), uses its nonvolatile memory in operational modes other than the power-save or “standby” mode wherein the disks are spun down. In a first additional mode, called a “performance” mode, one or more blocks of write data are destaged from volatile memory (the disk drive's write cache) and written to the disk and simultaneously one or more data blocks of write data are destaged from the volatile memory and written to the nonvolatile memory. In a second additional mode, called a “harsh-environment” mode, the disk drive includes one or more environmental sensors, such as temperature and humidity sensors, and the nonvolatile memory temporarily replaces the disks as the permanent storage media. In a third additional mode, called a “write-inhibit” mode, the disk drive includes one or more write-inhibit detectors, such as a shock sensor for detecting disturbances and vibrations to the disk drive. In write-inhibit mode, if the write-inhibit signal is on then the write data is written from the volatile memory to the nonvolatile memory instead of to the disks.
摘要翻译：混合磁盘驱动器，即具有两种类型的永久存储介质的磁盘驱动器（常规磁盘介质和非易失性存储器，例如闪速存储器），以除了省电模式或“待机”模式之外的操作模式使用其非易失性存储器，其中磁盘旋转。在称为“性能”模式的第一附加模式中，一个或多个写入数据块从易失性存储器（磁盘驱动器的写入高速缓存）中迁移并写入到磁盘，同时一个或多个写入数据的数据块从易失性存储器并写入非易失性存储器。在称为“恶劣环境”模式的第二附加模式中，磁盘驱动器包括一个或多个环境传感器，例如温度和湿度传感器，并且非易失性存储器暂时将磁盘替换为永久存储介质。在称为“禁止写入”模式的第三附加模式中，磁盘驱动器包括一个或多个禁止写入检测器，例如用于检测磁盘驱动器的干扰和振动的冲击传感器。在禁止写入模式下，如果禁止写入信号为ON，则将写入数据从易失性存储器写入非易失性存储器而不是写入磁盘。

5. 发明授权

US5566317A Method and apparatus for computer disk drive management 失效
标题翻译：计算机磁盘驱动器管理方法和装置
公开(公告)号：US5566317A
公开(公告)日：1996-10-15
申请号：US259531
申请日：1994-06-14
申请人： Richard K. Treiber , Jonathan M. Haswell , Spencer W. Ng , Mario Yamaguchi
发明人： Richard K. Treiber , Jonathan M. Haswell , Spencer W. Ng , Mario Yamaguchi
IPC分类号： G06F3/06 , G06F12/08
CPC分类号： G06F3/0611 , G06F12/0866 , G06F3/0656 , G06F3/0674 , G06F12/0862
摘要： A system manages data transfer between a computer, a data storage disk, and a data buffer which is associated with the disk. Upon receipt of a write request during data read-ahead from the disk to the buffer, the system preempts the read-ahead to write the data to the disk only when the target write track on the disk is different from the track being read ahead into the buffer. Otherwise, the system permits read-ahead to continue until the target write sector is positioned beneath the disk drive head. Also, upon receipt of a read request during cache writing from the buffer to the disk, the system immediately satisfies the read request prior to completing the cache writing when the requested read data is contained in the buffer. Moreover, the system provides for dynamic switching between a data read-ahead preempt policy and a data read-ahead no-preempt policy based upon parallel monitoring and comparison of data request service times under both policies.
摘要翻译：系统管理计算机，数据存储盘和与盘相关联的数据缓冲器之间的数据传输。在从磁盘到缓冲器的数据读取期间接收到写入请求时，系统只有当磁盘上的目标写入磁道与正在读取的磁道不同时才先读取数据才能将数据写入磁盘缓冲区。否则，系统允许预读继续，直到目标写入扇区位于磁盘驱动器头下方。此外，当从缓冲器写入缓存器的缓存器中接收到读取请求时，当所请求的读取数据被包含在缓冲器中时，系统在完成高速缓存写入之前立即满足读取请求。此外，该系统基于两种策略下的数据请求服务时间的并行监视和比较，提供数据预读抢占策略和数据预读无抢占策略之间的动态切换。

6. 发明授权

US08015433B2 Disk drive with nonvolatile memory for storage of failure-related data 有权
标题翻译：带有非易失性存储器的磁盘驱动器，用于存储故障相关数据
公开(公告)号：US08015433B2
公开(公告)日：2011-09-06
申请号：US11531380
申请日：2006-09-13
申请人： Frank R. Chu , George A. Dunn , Richard M. H. New , Spencer W. Ng
发明人： Frank R. Chu , George A. Dunn , Richard M. H. New , Spencer W. Ng
IPC分类号： G06F11/00
CPC分类号： G11B20/18
摘要： A disk drive that includes nonvolatile memory monitors the drive's reliability-related parameters to detect real or potential failure events, and records failure-related data in nonvolatile memory, rather than in reserved areas of the disks. The monitoring may be by running a diagnostic routine or by regular or periodic monitoring of disk drive sensors, like temperature and shock sensors. The failure events to be monitored and recorded may include defective data sectors. When a new defective sector is detected after the disk drive has been put into operation, that defective sector is taken out of service and its logical block address (LBA) is mapped to a memory space in the nonvolatile memory rather to a reserved spare sector on the disk. When a read or write command is received for an LBA range that includes the defective sector's LBA, the defective sector is skipped while the whole LBA range of the command is processed and the user data for the defective sector's LBA is read from or written to the mapped memory space in the nonvolatile memory.
摘要翻译：包含非易失性存储器的磁盘驱动器监视驱动器与可靠性相关的参数以检测实际或潜在的故障事件，并将故障相关数据记录在非易失性存储器中，而不是在磁盘的保留区域中。监控可能是通过运行诊断程序或通过定期或周期性地监视磁盘驱动器传感器，如温度和冲击传感器。要监视和记录的故障事件可能包括有缺陷的数据扇区。当磁盘驱动器投入运行后检测到新的缺陷扇区时，该缺陷扇区被取消服务，其逻辑块地址（LBA）映射到非易失性存储器中的存储器空间，而不是映射到备用扇区磁盘。当接收到包含缺陷扇区的LBA的LBA范围的读取或写入命令时，跳过缺陷扇区，同时处理命令的整个LBA范围，并且将缺陷扇区的LBA的用户数据从或写入到在非易失性存储器中映射的存储空间。

7. 发明授权

US08014095B2 Mixed format disk drive 有权
标题翻译：混合格式磁盘驱动器
公开(公告)号：US08014095B2
公开(公告)日：2011-09-06
申请号：US12005963
申请日：2007-12-28
申请人： Kirk Hwang , Michael A. Moser , Spencer W. Ng
发明人： Kirk Hwang , Michael A. Moser , Spencer W. Ng
IPC分类号： G11B5/09
CPC分类号： G11B5/59655
摘要： A magnetic disk for a hard disk drive comprising a plurality of physical sector sizes is disclosed. The magnetic disk includes a first sector size area physically formatted according to a first physical sector size and a second sector size area physically formatted according to a second physical sector size different from the first sector size by a multiple of the first sector size wherein the second sector size can be presented externally as multiple sectors of said first sector size.
摘要翻译：公开了一种用于包括多个物理扇区尺寸的硬盘驱动器的磁盘。磁盘包括根据第一物理扇区尺寸物理格式化的第一扇区大小区域和根据与第一扇区尺寸不同的第二物理扇区尺寸物理格式化的第二扇区大小区域，其中第二扇区尺寸区域的第二扇区大小区域大小为第二扇区大小，扇区大小可以在外部呈现为所述第一扇区大小的多个扇区。

8. 发明授权

US07062673B2 System and method for sparing in RAID-1 system 有权
标题翻译： RAID-1系统中的备用系统和方法
公开(公告)号：US07062673B2
公开(公告)日：2006-06-13
申请号：US10441176
申请日：2003-05-19
申请人： Spencer W. Ng
发明人： Spencer W. Ng
IPC分类号： G06F11/00
CPC分类号： G06F11/2094 , G06F11/1662 , G06F11/2069 , G06F11/2087 , G06F2211/1028
摘要： A RAID-1 system achieves sparing by allocating 1/(2N−1) of each storage device as a spare region, in a mirrored RAID-1 system having N pair of mated devices. The remaining portion of each device is partitioned into (2N−2) data partitions. If a device fails, the contents of its mate are copied into the spare regions of the other devices. This preserves fault tolerance even if a second device subsequently fails.
摘要翻译：在具有N对配对设备的镜像RAID-1系统中，通过将每个存储设备的1 /（2N-1）分配为备用区域来实现RAID-1系统。每个设备的剩余部分被划分为（2N-2）个数据分区。如果设备发生故障，其配对内容将被复制到其他设备的备用区域。即使第二个设备随后发生故障，这也保留了容错。

9. 发明授权

US06237070B1 Method and system for determining the data layout geometry of a disk drive 失效
标题翻译：用于确定磁盘驱动器的数据布局几何的方法和系统
公开(公告)号：US06237070B1
公开(公告)日：2001-05-22
申请号：US09126745
申请日：1998-07-31
申请人： Spencer W. Ng
发明人： Spencer W. Ng
IPC分类号： G06F1200
CPC分类号： G06F3/0613 , G06F3/0653 , G06F3/0674 , G11B5/012 , G11B20/1258 , G11B27/105 , G11B27/36
摘要： A system and method for determining the disk drive parameters of any disk drive that may be encountered. A novel access pattern is applied to the disk drive and a novel technique used to interpret the measured results. In order to determine a data layout geometry of a disk drive, access times for a plurality of sectors on the disk drive are measured by alternately performing the steps of: accessing an anchor sector of the disk drive, and accessing a successive sector of the disk drive and measuring a completion time of the access. Parameters related to the data layout geometry of the disk drive are determined based on the measured access times. Contiguous patterns of the measured access times are detected and gaps between contiguous patterns are detected. Gaps of a first size, representing a track skew, and gaps of a second size, representing a cylinder skew, are detected. A number of sectors per track is determined based on a contiguous pattern of access times between two track skew gaps, wherein the number of sectors per track is equal to the number of contiguous access times in the contiguous pattern. A number of tracks per cylinder, which is equal to a number of contiguous patterns of access times between two cylinder skew gaps, is determined. A gap of a third size, representing a revolution is detected and a revolution speed of the disk drive is determined based on the size of the revolution gap.
摘要翻译：用于确定可能遇到的任何磁盘驱动器的磁盘驱动器参数的系统和方法。一种新颖的访问模式被应用于磁盘驱动器和用于解释测量结果的新技术。为了确定磁盘驱动器的数据布局几何形状，通过交替地执行以下步骤来测量磁盘驱动器上的多个扇区的访问时间：访问磁盘驱动器的锚定扇区，并访问磁盘的连续扇区驱动并测量访问的完成时间。基于测量的访问时间确定与磁盘驱动器的数据布局几何相关的参数。检测测量的访问时间的连续模式，并检测相邻模式之间的间隙。检测出表示轨道偏移的第一尺寸间隙和表示气缸偏斜的第二尺寸的间隙。基于两个轨道间的间隔之间的连续访问时间图来确定每个磁道的扇区数，其中每个磁道的扇区数等于连续模式中的连续访问次数。确定每个气缸的多个轨道，其等于两个气缸倾斜间隙之间的连续的接近时间图案的数量。检测出表示旋转的第三尺寸的间隙，并且基于旋转间隙的尺寸确定盘驱动器的转速。

10. 再颁专利

USRE36846E Recovery from errors in a redundant array of disk drives 失效
标题翻译：从磁盘驱动器冗余阵列中的错误中恢复
公开(公告)号：USRE36846E
公开(公告)日：2000-08-29
申请号：US583773
申请日：1996-01-11
申请人： Spencer W. Ng , David W. Palmer , Richard S. Thompson
发明人： Spencer W. Ng , David W. Palmer , Richard S. Thompson
IPC分类号： G06F3/06 , G06F11/00 , G06F11/10 , G11B20/18
CPC分类号： G06F11/1092 , G11B20/1833
摘要： Fault tolerance in a redundant array of disk drives is degraded when error conditions exist in the array. Several methods for rebuilding data of the array to remove the degradation are described. Data rebuilding for entire disk drives and partial data rebuilds of disk drives are described. All rebuild methods tend to reduce the negative affect of using array resources for the data rebuild. In one method rebuilding occurs during idle time of the array. In a second method rebuilding is interleaved between current data area accessing operations of the array at a rate which is inversely proportional to activity level of the array. In a third method, the data are rebuilt when a data area being accessed is a data area needing rebuilding.
摘要翻译：当阵列中存在错误条件时，磁盘驱动器冗余阵列中的容错会降级。描述了重建数组的数据以消除劣化的几种方法。描述整个磁盘驱动器的数据重建和磁盘驱动器的部分数据重建。所有重建方法都倾向于减少使用数组资源进行数据重建的负面影响。在一种方法中，重建在阵列的空闲时间发生。在第二种方法中，重建以与阵列的活动级别成反比的速率在阵列的当前数据区域访问操作之间进行交织。在第三种方法中，当正在访问的数据区域是需要重建的数据区域时，重建数据。

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