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1. 发明申请

US20110022779A1 Skip Operations for Solid State Disks 有权
标题翻译：跳过固态磁盘的操作
公开(公告)号：US20110022779A1
公开(公告)日：2011-01-27
申请号：US12508915
申请日：2009-07-24
申请人： Tim Lund , Carl Forhan , Timothy Swatosh , Pamela Hempstead , Michael Hicken , Bryan Holty , John Paradise
发明人： Tim Lund , Carl Forhan , Timothy Swatosh , Pamela Hempstead , Michael Hicken , Bryan Holty , John Paradise
IPC分类号： G06F12/00 , G06F12/02
CPC分类号： G06F12/0246 , G06F2212/7201
摘要： Described embodiments provide skip operations for transferring data to or from a plurality of non-contiguous sectors of a solid-state memory. A host layer module sends data to, and receives commands from, a communication link. Received commands are one of read requests or write requests, with commands including i) a starting sector address, ii) a skip mask indicating the span of all sector addresses in the request and the sectors to be transferred, iii) a total number of sectors to be transferred; and, for write requests, iv) the data to be written to the sectors. A buffer stores data for transfer to or from the solid-state memory. A buffer layer module i) manages the buffer, ii) segments the span of the request into a plurality of chunks, and iii) determines, based on the skip mask, a number of chunks to be transferred to or from the solid-state memory.
摘要翻译：所描述的实施例提供了用于向固态存储器的多个非连续扇区传送数据或从固态存储器的多个非连续扇区传送数据的跳过操作。主机层模块向通信链路发送数据并从通信链路接收命令。接收到的命令是读请求或写请求之一，命令包括i）起始扇区地址，ii）指示请求中的所有扇区地址的跨度和要传送的扇区的跳过掩码，iii）扇区总数被转让并且对于写请求，iv）要写入扇区的数据。缓冲器存储用于传输到固态存储器或从固态存储器传输的数据。缓冲层模块i）管理缓冲器，ii）将请求的跨度划分为多个块，以及iii）基于跳过掩码确定要传送到固态存储器或从固态存储器传送的块的数量。

2. 发明申请

US20080046648A1 METHOD AND SYSTEM FOR INCREASING PARALLELISM OF DISK ACCESSES WHEN RESTORING DATA IN A DISK ARRAY SYSTEM 有权
标题翻译：在盘式系统恢复数据时增加磁盘访问并行性的方法和系统
公开(公告)号：US20080046648A1
公开(公告)日：2008-02-21
申请号：US11923280
申请日：2007-10-24
申请人： Carl Forhan , Robert Galbraith , Adrian Gerhard
发明人： Carl Forhan , Robert Galbraith , Adrian Gerhard
IPC分类号： G06F12/00
CPC分类号： G06F11/1092 , G06F2211/1052 , G06F2211/1057
摘要： In a disk array environment such as a RAID-6 environment, the overall performance overhead associated with exposed mode operations such as resynchronization, rebuild and exposed mode read operations is reduced through increased parallelism. By selecting only subsets of the possible disks required to solve a parity stripe equation for a particular parity stripe, accesses to one or more disks in a disk array may be omitted, thus freeing the omitted disks to perform other disk accesses. In addition, disk accesses associated with different parity stripes may be overlapped such that the retrieval of data necessary for restoring data for one parity stripe is performed concurrently with the storage of restored data for another parity stripe.
摘要翻译：在诸如RAID-6环境的磁盘阵列环境中，通过增加的并行性降低与暴露模式操作（例如重新同步，重建和暴露模式读取操作）相关联的总体性能开销。通过仅选择解决特定奇偶校验条带的奇偶校验条带方程所需的可能磁盘的子集，可以省略对磁盘阵列中的一个或多个磁盘的访问，从而释放所省略的磁盘来执行其他磁盘访问。此外，与不同奇偶校验条带相关联的磁盘访问可以重叠，使得对于一个奇偶校验条带恢复数据所需的数据的检索与用于另一个奇偶校验条带的还原数据的存储同时执行。

3. 发明申请

US20080040416A1 RAID ENVIRONMENT INCORPORATING HARDWARE-BASED FINITE FIELD MULTIPLIER FOR ON-THE-FLY XOR 审中-公开
公开(公告)号：US20080040416A1
公开(公告)日：2008-02-14
申请号：US11873088
申请日：2007-10-16
申请人： Carl Forhan , Robert Galbraith , Adrian Gerhard
发明人： Carl Forhan , Robert Galbraith , Adrian Gerhard
IPC分类号： G06F7/00
CPC分类号： G06F11/1076 , G06F2211/1057 , G06F2211/1059 , G06F2211/109
摘要： A hardware-based finite field multiplier is used to scale incoming data from a disk drive and XOR the scaled data with the contents of a working buffer when performing resync, rebuild and other exposed mode read operations in a RAID or other disk array environment. As a result, RAID designs relying on parity stripe equations incorporating one or more scaling coefficients are able to overlap read operations to multiple drives and thereby increase parallelism, reduce the number of required buffers, and increase performance.

4. 发明申请

US20060123269A1 Method and system for enhanced error identification with disk array parity checking 失效
标题翻译：用于通过磁盘阵列奇偶校验来增强错误识别的方法和系统
公开(公告)号：US20060123269A1
公开(公告)日：2006-06-08
申请号：US10994088
申请日：2004-11-19
申请人： Carl Forhan , Robert Galbraith , Adrian Gerhard
发明人： Carl Forhan , Robert Galbraith , Adrian Gerhard
IPC分类号： G06F11/00
CPC分类号： G06F11/1076 , G06F2211/1057
摘要： When parity checking in a disk array such as a RAID-6 system determines data and parity information is unsynchronized, additional calculations are performed to determine whether the error may be attributed to faulty data on a disk drive or to a more systemic problem such as a faulty controller. In particular, for each particular error detected, the parity generating information is analyzed to determine if each error involves a common disk index. If so, the data can be corrected on that disk; if not other corrective procedures are implemented.
摘要翻译：当诸如RAID-6系统的磁盘阵列中的奇偶校验确定数据和奇偶校验信息不同步时，执行额外的计算以确定错误是否可归因于磁盘驱动器上的故障数据或更系统的问题，例如故障控制器。特别地，对于检测到的每个特定错误，分析奇偶校验生成信息以确定每个错误是否涉及公共盘索引。如果是这样，可以在该磁盘上更正数据; 如果不执行其他纠正程序。

5. 发明授权

US08762789B2 Processing diagnostic requests for direct block access storage devices 有权
标题翻译：处理直接访问存储设备的诊断请求
公开(公告)号：US08762789B2
公开(公告)日：2014-06-24
申请号：US12873512
申请日：2010-09-01
申请人： Timothy Lund , Carl Forhan , Randal S. Rysavy , Timothy Swatosh
发明人： Timothy Lund , Carl Forhan , Randal S. Rysavy , Timothy Swatosh
IPC分类号： G06F11/00
CPC分类号： G06F3/00 , G06F12/0246 , G06F12/1027 , G06F13/14 , G06F13/24 , G06F2212/7201 , G06F2212/7203 , G06F2213/0028
摘要： Described embodiments provide a media controller for processing a diagnostic request received from a diagnostic source. The received diagnostic request is parsed by a corresponding request handling module of the media controller, where each diagnostic source type has a corresponding request handling module. If the received diagnostic request requires allocation of buffer space, a common diagnostic handling module of the media controller allocates buffer space in a buffer for the received diagnostic request. The common diagnostic handling module is common for all diagnostic source types. The common diagnostic handling module provides the received diagnostic request to a corresponding one of a plurality of end diagnostic handling modules. The end diagnostic handling module performs the diagnostic tasks. If the received diagnostic request requires a transfer of data to the diagnostic source, the common diagnostic handling module performs the data transfer between the media controller and the diagnostic source.
摘要翻译：描述的实施例提供了一种用于处理从诊断源接收的诊断请求的媒体控制器。所接收的诊断请求由媒体控制器的相应请求处理模块解析，其中每个诊断源类型具有相应的请求处理模块。如果接收到的诊断请求需要分配缓冲区空间，则媒体控制器的公共诊断处理模块在接收的诊断请求的缓冲器中分配缓冲区空间。常见的诊断处理模块对于所有诊断源类型是常见的。常见的诊断处理模块将接收的诊断请求提供给多个终端诊断处理模块中的对应的一个。结束诊断处理模块执行诊断任务。如果接收到的诊断请求需要将数据传输到诊断源，则通用诊断处理模块执行介质控制器和诊断源之间的数据传输。

6. 发明授权

US08458381B2 Processing host transfer requests for direct block access storage devices 有权
标题翻译：处理直接访问存储设备的主机传输请求
公开(公告)号：US08458381B2
公开(公告)日：2013-06-04
申请号：US12873450
申请日：2010-09-01
申请人： Bryan Holty , Michael Hicken , Carl Forhan , Jeffrey L. Williams
发明人： Bryan Holty , Michael Hicken , Carl Forhan , Jeffrey L. Williams
IPC分类号： G06F3/00 , G06F5/00 , G06F13/12 , G06F13/38 , G06F13/00
CPC分类号： G06F3/00 , G06F12/0246 , G06F12/1027 , G06F13/14 , G06F13/24 , G06F2212/7201 , G06F2212/7203 , G06F2213/0028
摘要： Described embodiments provide a host subsystem that generates a host context corresponding to a received host data transfer request. A programmable sequencer generates one or more sequencer contexts based on the host context. Each of the sequencer contexts corresponds to at least part of the host data transfer request. The sequencer contexts are provided to a buffer subsystem of the media controller. For host read requests, the buffer subsystem retrieves the data associated with the sequencer contexts of the read request from a corresponding buffer or a storage media and transmits the data associated with the sequencer contexts to the host device. For host write requests, the buffer subsystem receives the data associated with the host context from the host device and stores the data associated with the sequencer contexts of the write request to a corresponding buffer or the storage media.
摘要翻译：所描述的实施例提供了主机子系统，其生成与所接收的主机数据传送请求相对应的主机上下文。可编程序定序器基于主机上下文生成一个或多个定序器上下文。每个定序器上下文对应于主机数据传输请求的至少一部分。定序器上下文被提供给媒体控制器的缓冲子系统。对于主机读取请求，缓冲器子系统从对应的缓冲器或存储介质检索与读取请求的定序器上下文相关联的数据，并将与定序器上下文相关联的数据发送到主机设备。对于主机写入请求，缓冲器子系统从主机设备接收与主机上下文相关联的数据，并将与写入请求的定序器上下文相关联的数据存储到相应的缓冲器或存储介质。

7. 发明授权

US08219776B2 Logical-to-physical address translation for solid state disks 有权
标题翻译：固态磁盘的逻辑到物理地址转换
公开(公告)号：US08219776B2
公开(公告)日：2012-07-10
申请号：US12643471
申请日：2009-12-21
申请人： Carl Forhan , Pamela Hempstead , Michael Hicken , Randy Reiter , Timothy Swatosh
发明人： Carl Forhan , Pamela Hempstead , Michael Hicken , Randy Reiter , Timothy Swatosh
IPC分类号： G06F12/00
CPC分类号： G06F3/00 , G06F12/0246 , G06F12/1027 , G06F13/14 , G06F13/24 , G06F2212/7201 , G06F2212/7203 , G06F2213/0028
摘要： Described embodiments provide logical-to-physical address translation for data stored on a storage device having sectors organized into blocks and superblocks. A flash translation layer maps a physical address in the storage device to a logical sector address. The logical sector address corresponds to mapping data that includes i) a page index, ii) a block index, and iii) a superblock number. The mapping data is stored in at least one summary page corresponding to the superblock containing the physical address. A block index and a page index of a next empty page in the superblock are stored in a page global directory corresponding to the superblock. A block index and a page index of the at least one summary page and the at least one active block table for each superblock are stored in at least one active block table of the storage device.
摘要翻译：描述的实施例为存储在具有被组织成块和超级块的扇区的存储设备上的数据提供逻辑到物理地址转换。闪存转换层将存储设备中的物理地址映射到逻辑扇区地址。逻辑扇区地址对应于包括i）页索引，ii）块索引和iii）超级块号的映射数据。映射数据存储在与包含物理地址的超级块对应的至少一个概要页中。超级块中的下一个空页的块索引和页索引被存储在与超块对应的页全局目录中。至少一个摘要页面的块索引和页面索引以及每个超级块的至少一个活动块表被存储在存储设备的至少一个活动块表中。

8. 发明授权

US08321639B2 Command tracking for direct access block storage devices 有权
标题翻译：直接访问块存储设备的命令跟踪
公开(公告)号：US08321639B2
公开(公告)日：2012-11-27
申请号：US12649490
申请日：2009-12-30
申请人： Timothy Lund , Carl Forhan
发明人： Timothy Lund , Carl Forhan
IPC分类号： G06F12/06
CPC分类号： G06F12/0246 , G06F2212/7201
摘要： Described embodiments provide tracking and processing of commands received by a storage device. For each received command, the storage device determines one or more requested logical block addresses (LBAs), including a starting LBA and a length of one or more LBAs of the received command. The storage device determines whether command reordering is restricted. If command reordering is not restricted, the storage device processes the received commands. Otherwise, if command reordering is restricted, the storage device conflict checks each received command. If no conflict is detected, the storage device tracks and processes the received command. Otherwise, if a conflict is detected, the storage device queues the received command.
摘要翻译：所描述的实施例提供了由存储设备接收的命令的跟踪和处理。对于每个接收到的命令，存储设备确定一个或多个所请求的逻辑块地址（LBA），包括起始LBA和所接收命令的一个或多个LBA的长度。存储设备确定命令重新排序是否被限制。如果命令重新排序不受限制，则存储设备处理接收到的命令。否则，如果命令重新排序受限制，则存储设备冲突检查每个接收到的命令。如果没有检测到冲突，则存储设备跟踪并处理接收到的命令。否则，如果检测到冲突，则存储设备对接收到的命令进行排队。

9. 发明申请

US20110072194A1 Logical-to-Physical Address Translation for Solid State Disks 有权
标题翻译：固态磁盘的逻辑到物理地址转换
公开(公告)号：US20110072194A1
公开(公告)日：2011-03-24
申请号：US12643471
申请日：2009-12-21
申请人： Carl Forhan , Pamela Hempstead , Michael Hicken , Randy Reiter , Timothy Swatosh
发明人： Carl Forhan , Pamela Hempstead , Michael Hicken , Randy Reiter , Timothy Swatosh
IPC分类号： G06F12/00 , G06F12/10 , G06F12/02
CPC分类号： G06F3/00 , G06F12/0246 , G06F12/1027 , G06F13/14 , G06F13/24 , G06F2212/7201 , G06F2212/7203 , G06F2213/0028
摘要： Described embodiments provide logical-to-physical address translation for data stored on a storage device having sectors organized into blocks and superblocks. A flash translation layer maps a physical address in the storage device to a logical sector address. The logical sector address corresponds to mapping data that includes i) a page index, ii) a block index, and iii) a superblock number. The mapping data is stored in at least one summary page corresponding to the superblock containing the physical address. A block index and a page index of a next empty page in the superblock are stored in a page global directory corresponding to the superblock. A block index and a page index of the at least one summary page and the at least one active block table for each superblock are stored in at least one active block table of the storage device.
摘要翻译：描述的实施例为存储在具有被组织成块和超级块的扇区的存储设备上的数据提供逻辑到物理地址转换。闪存转换层将存储设备中的物理地址映射到逻辑扇区地址。逻辑扇区地址对应于包括i）页索引，ii）块索引和iii）超级块号的映射数据。映射数据存储在与包含物理地址的超级块对应的至少一个概要页中。超级块中的下一个空页的块索引和页索引被存储在与超块对应的页全局目录中。至少一个摘要页面的块索引和页面索引以及每个超级块的至少一个活动块表被存储在存储设备的至少一个活动块表中。

10. 发明申请

US20110072187A1 DYNAMIC STORAGE OF CACHE DATA FOR SOLID STATE DISKS 有权
标题翻译：用于固态盘的缓存数据的动态存储
公开(公告)号：US20110072187A1
公开(公告)日：2011-03-24
申请号：US12722828
申请日：2010-03-12
申请人： Carl Forhan , Timothy Lund
发明人： Carl Forhan , Timothy Lund
IPC分类号： G06F12/08 , G06F12/00 , G06F12/02
CPC分类号： G06F3/00 , G06F12/0246 , G06F12/1027 , G06F13/14 , G06F13/24 , G06F2212/7201 , G06F2212/7203 , G06F2213/0028
摘要： Described embodiments provide a media controller that determines the size of a cache of data being transferred between a host device and one or more sectors of a storage device. The one or more sectors are segmented into a plurality of chunks, and each chunk corresponds to at least one sector. The contents of the cache are managed in a cache hash table. At startup of the media controller, a buffer layer module of the media controller initializes the cache in a buffer of the media controller. During operation of the media controller, the buffer layer module determines a number of chunks allocated to the cache. Based on the number of chunks allocated to the cache, the buffer layer module updates the size of the of the cache hash table.
摘要翻译：描述的实施例提供了一种媒体控制器，其确定正在主机设备和存储设备的一个或多个扇区之间传送的数据的高速缓存的大小。一个或多个扇区被分割成多个块，并且每个块对应于至少一个扇区。缓存的内容在缓存哈希表中进行管理。在媒体控制器启动时，媒体控制器的缓冲层模块将媒体控制器的缓冲区中的高速缓存初始化。在介质控制器的操作期间，缓冲层模块确定分配给高速缓存的块的数量。基于分配给缓存的块的数量，缓冲层模块更新高速缓存哈希表的大小。

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