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1. 发明授权

US07149046B1 Disk drive implementing wear prevention in a high frequency access band of tracks 有权
标题翻译：磁盘驱动器在轨道的高频接入带实现磨损预防
公开(公告)号：US07149046B1
公开(公告)日：2006-12-12
申请号：US11134916
申请日：2005-05-23
申请人： Kenny T. Coker , Michael S. Rothberg , Daniel A. Hanson , Mark F. Vallis , Quoc N. Dang
发明人： Kenny T. Coker , Michael S. Rothberg , Daniel A. Hanson , Mark F. Vallis , Quoc N. Dang
IPC分类号： G11B21/02 , G11B5/596
CPC分类号： G11B5/54 , G11B5/255 , G11B5/3106 , G11B5/5526
摘要： A disk drive is disclosed comprising a disk having a plurality of tracks, a head actuated over the disk, and control circuitry for servicing an access command received from a host, wherein the access command identifies at least one of the tracks. The control circuitry identifies a band of tracks associated with the access command, maintains a counter for tracking an amount of time the head is within the band of tracks, and moves the head out of the band of tracks in response to the counter to facilitate wear prevention.
摘要翻译：公开了一种磁盘驱动器，其包括具有多个轨道的磁盘，在盘上致动的磁头，以及用于服务从主机接收的访问命令的控制电路，其中，所述访问命令识别至少一个轨道。控制电路识别与访问命令相关联的轨道带，维持用于跟踪头部在轨道带内的时间量的计数器，并且响应于计数器将头部移出轨道带以促进磨损预防。

2. 发明授权

US06745283B1 Disk drive for dynamically allocating memory accessed concurrently by a host interface and a disk interface to facilitate large host commands 失效
标题翻译：用于动态分配由主机接口和磁盘接口同时访问的内存的磁盘驱动器，以方便大型主机命令
公开(公告)号：US06745283B1
公开(公告)日：2004-06-01
申请号：US10123967
申请日：2002-04-16
申请人： Quoc N. Dang
发明人： Quoc N. Dang
IPC分类号： G06F1206
CPC分类号： G06F3/0613 , G06F3/0656 , G06F3/0674 , G06F12/0866 , G06F2212/312
摘要： A disk drive is disclosed comprising a disk and a semiconductor memory comprising addressable locations for staging and caching data, wherein each addressable location having an allocation status. When a large write command is received from a host to write write-data to the disk, a disk controller dynamically allocates a plurality of the addressable locations relative to the size of the write command and the allocation status of the addressable locations. The write-data received from the host is stored in the dynamically allocated addressable locations while concurrently reading the write-data from the dynamically allocated addressable locations and writing the write-data to the disk. The dynamically allocated addressable locations are re-used for storing write-data received from the host after writing the write-data to the disk.
摘要翻译：公开了一种磁盘驱动器，其包括盘和半导体存储器，其包括用于暂存和高速缓存数据的可寻址位置，其中每个可寻址位置具有分配状态。当从主机接收到写入写入数据到磁盘的大写入命令时，磁盘控制器相对于写入命令的大小和可寻址位置的分配状态来动态地分配多个可寻址位置。从主机接收的写入数据被存储在动态分配的可寻址位置中，同时从动态分配的可寻址位置读取写入数据，并将写入数据写入盘中。动态分配的可寻址位置被重新用于在写入数据到磁盘之后存储从主机接收到的写入数据。

3. 发明授权

US06968450B1 Disk drive caching initial host requested data in non-volatile semiconductor memory to reduce start-up time of a host computer 有权
标题翻译：磁盘驱动器将初始主机请求的数据缓存在非易失性半导体存储器中，以减少主机的启动时间
公开(公告)号：US06968450B1
公开(公告)日：2005-11-22
申请号：US10160682
申请日：2002-06-01
申请人： Michael S. Rothberg , Quoc N. Dang
发明人： Michael S. Rothberg , Quoc N. Dang
IPC分类号： G06F3/06 , G06F12/00 , G06F12/08 , G06F15/177
CPC分类号： G06F3/0632 , G06F3/0607 , G06F3/0625 , G06F3/0674 , G06F12/0866 , Y02D10/13 , Y02D10/154
摘要： A disk drive is disclosed comprising a disk for storing initial host requested (IHR) data requested by a host computer during a start-up process of the host computer, a head actuated radially over the disk, and a non-volatile semiconductor memory (NVSM) for caching at least part of the IHR data. The disk drive transmits the cached IHR data from the NVSM to the host computer during the start-up process thereby avoiding the delay associated with initializing the mechanics of the disk drive as well as conserving battery power for mobile applications.
摘要翻译：公开了一种磁盘驱动器，包括用于在主机的启动过程期间主机请求的初始主机请求（IHR）数据的磁盘，在盘上径向驱动的磁头和非易失性半导体存储器（NVSM））用于缓存至少部分IHR数据。磁盘驱动器在启动过程中将缓存的IHR数据从NVSM发送到主计算机，从而避免与初始化磁盘驱动器的机制相关联的延迟以及为移动应用节省电池电力。

4. 发明授权

US06996669B1 Cluster-based cache memory allocation 失效
标题翻译：基于群集的高速缓存内存分配
公开(公告)号：US06996669B1
公开(公告)日：2006-02-07
申请号：US10628144
申请日：2003-07-28
申请人： Quoc N. Dang , Tsun Y. Ng , Ralph H. Castro , Virgil V. Wilkins
发明人： Quoc N. Dang , Tsun Y. Ng , Ralph H. Castro , Virgil V. Wilkins
IPC分类号： G06F12/00
CPC分类号： G06F12/0873 , G06F2212/312 , G06F2212/313
摘要： The present invention relates to a disk drive including a cache memory having a plurality of sequentially-ordered memory clusters for caching disk data stored in sectors (not shown) on disks of a disk assembly. The disk sectors are identified by logical block addresses (LBAs). A cache control system of the disk drive comprises a cluster control block memory, having a plurality of cluster control blocks (CCB), and a tag memory 22, having a plurality of tag records, that are embedded within the cache control system. Each CCB includes a cluster segment record with an entry for associating the CCB with a particular memory cluster and for forming variable length segments of the memory clusters without regard to the sequential order of the memory clusters. Each tag record assigns a segment to a continuous range of LBAs and defines the CCBs forming the segment. Each segment of the memory clusters is for caching data from a contiguous range of the logical block addresses. The cache control system efficiently exploits available memory clusters for responding to host commands.
摘要翻译：本发明涉及一种磁盘驱动器，其包括具有多个顺序排列的存储器簇的高速缓冲存储器，用于缓存存储在盘组件的盘上的扇区（未示出）中的磁盘数据。磁盘扇区由逻辑块地址（LBA）标识。磁盘驱动器的高速缓存控制系统包括具有多个集群控制块（CCB）的集群控制块存储器和嵌入在高速缓存控制系统内的具有多个标签记录的标签存储器22。每个CCB包括具有用于将CCB与特定存储器簇相关联的条目的群集段记录，并且用于形成存储器簇的可变长度段，而不考虑存储器簇的顺序。每个标签记录将段分配给LBA的连续范围，并定义构成段的CCB。存储器集群的每个段用于从逻辑块地址的连续范围缓存数据。高速缓存控制系统有效地利用可用的内存集群来响应主机命令。

5. 发明授权

US06606682B1 Cluster-based cache memory allocation 失效
标题翻译：基于群集的高速缓存内存分配
公开(公告)号：US06606682B1
公开(公告)日：2003-08-12
申请号：US09552407
申请日：2000-04-19
申请人： Quoc N. Dang , Tsun Y. Ng , Ralph H. Castro , Virgil V. Wilkins
发明人： Quoc N. Dang , Tsun Y. Ng , Ralph H. Castro , Virgil V. Wilkins
IPC分类号： G06F1200
CPC分类号： G06F12/0873 , G06F2212/312 , G06F2212/313
摘要： The present invention relates to a disk drive including a cache memory having a plurality of sequentially-ordered memory clusters for caching disk data stored in sectors (not shown) on disks of a disk assembly. The disk sectors are identified by logical block addresses (LBAs). A cache control system of the disk drive comprises a cluster control block memory, having a plurality of cluster control blocks (CCB), and a tag memory 22, having a plurality of tag records, that are embedded within the cache control system. Each CCB includes a cluster segment record with an entry for associating the CCB with a particular memory cluster and for forming variable length segments of the memory clusters without regard to the sequential order of the memory clusters. Each tag record assigns a segment to a continuous range of LBAs and defines the CCBs forming the segment. Each segment of the memory clusters is for caching data from a contiguous range of the logical block addresses.
摘要翻译：本发明涉及一种磁盘驱动器，其包括具有多个顺序排列的存储器簇的高速缓冲存储器，用于缓存存储在盘组件的盘上的扇区（未示出）中的磁盘数据。磁盘扇区由逻辑块地址（LBA）标识。磁盘驱动器的高速缓存控制系统包括具有多个集群控制块（CCB）的集群控制块存储器和嵌入在高速缓存控制系统中的具有多个标签记录的标签存储器22。每个CCB包括具有用于将CCB与特定存储器簇相关联的条目的群集段记录，并且用于形成存储器簇的可变长度段，而不考虑存储器簇的顺序。每个标签记录将段分配给LBA的连续范围，并定义构成段的CCB。存储器集群的每个段用于从逻辑块地址的连续范围缓存数据。

6. 发明授权

US06606717B1 Cache control method and system for mixed streaming and non-streaming data 有权
标题翻译：混合流和非流数据的缓存控制方法和系统
公开(公告)号：US06606717B1
公开(公告)日：2003-08-12
申请号：US09628892
申请日：2000-07-31
申请人： Sharon H. Yu , Gary K. Laatsch , Quoc N. Dang
发明人： Sharon H. Yu , Gary K. Laatsch , Quoc N. Dang
IPC分类号： G06F1314
CPC分类号： G06F12/0866 , G06F2212/312
摘要： The present invention may be embodied in a cache control method for caching disk data in a disk drive configured to receive commands for both streaming and non-streaming data from a host. A lossy state record is provided for memory segments in a cache memory. The lossy state record allows hosts commands to be mixed for streaming and non-streaming data without flushing of cache data for a command mode change.
摘要翻译：本发明可以体现在缓存控制方法中，用于在配置为从主机接收流和非流数据的命令的盘驱动器中缓存磁盘数据。为高速缓冲存储器中的存储器段提供有损状态记录。有损状态记录允许主机命令混合用于流和非数据流数据，而不刷新命令模式更改的缓存数据。

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