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1. 发明授权

US08006047B2 Storage device with write barrier sensitive write commands and write barrier insensitive commands 有权
标题翻译：具有写入屏障敏感写命令和写阻止不敏感命令的存储设备
公开(公告)号：US08006047B2
公开(公告)日：2011-08-23
申请号：US11823441
申请日：2007-06-27
申请人： Jorge Campello De Souza , Frank R. Chu , Chunqi Han , Anand Krishnamurthi Kulkarni , Donald Joseph Molaro , Richard M. H. New , Marco Sanvido
发明人： Jorge Campello De Souza , Frank R. Chu , Chunqi Han , Anand Krishnamurthi Kulkarni , Donald Joseph Molaro , Richard M. H. New , Marco Sanvido
IPC分类号： G06F12/00
CPC分类号： G06F12/0804 , G06F3/0611 , G06F3/0656 , G06F3/0659 , G06F3/0676 , G06F12/0866
摘要： The invention is a storage device which implements a write barrier command and provides means for a host to designate other write commands as being sensitive or insensitive to the existence of write barrier commands. The device can optimize the execution of commands by changing the order of execution of write commands that are insensitive to write barrier command. In an embodiment of the invention a flag associated with the write command indicates whether the command is sensitive or insensitive to the existence of write barrier commands. In an embodiment of the invention the write barrier command can be implemented as a write command with a flag that indicates whether the command is a write barrier command. In one embodiment of the invention the queue of commands and data to be written to the media is stored in a non-volatile cache.
摘要翻译：本发明是一种实现写入屏障命令的存储设备，并且提供用于主机将其他写入命令指定为对写入障碍命令的存在敏感或不敏感的装置。该设备可以通过改变对写入屏障命令不敏感的写入命令的执行顺序来优化命令的执行。在本发明的实施例中，与写入命令相关联的标志指示命令是否对写入屏障命令的存在敏感或不敏感。在本发明的一个实施例中，写屏障命令可以被实现为具有指示该命令是否是写屏障命令的标志的写入命令。在本发明的一个实施例中，要写入媒体的命令和数据队列被存储在非易失性高速缓存中。

2. 发明申请

US20100232057A1 Techniques For Storing Shingle Blocks in a Cache Memory Using a Data Storage Device 有权
标题翻译：使用数据存储设备将缓存存储器中的瓦块存储的技术
公开(公告)号：US20100232057A1
公开(公告)日：2010-09-16
申请号：US12402415
申请日：2009-03-11
申请人： Marco Sanvido , Cyril Guyot , Anand Krishnamurthi Kulkarni , Zvonimir Bandic , Martin Chen
发明人： Marco Sanvido , Cyril Guyot , Anand Krishnamurthi Kulkarni , Zvonimir Bandic , Martin Chen
IPC分类号： G11B5/596
CPC分类号： G11B5/596 , G11B5/012 , G11B5/02 , G11B20/10527 , G11B2020/10759 , G11B2220/2516
摘要： A data storage apparatus includes a data storage medium, a write element, a non-volatile cache memory circuit, and a controller circuit. The controller circuit is configured to record data on the data storage medium in groups of overlapping tracks using the write element. The controller circuit is configured to store a shingle block of data from a subset of the overlapping tracks in the non-volatile cache memory circuit, while at least a portion of the data in the shingle block of data is updated.
摘要翻译：数据存储装置包括数据存储介质，写元件，非易失性高速缓冲存储器电路和控制器电路。控制器电路被配置为使用写入元件在数据存储介质上以重叠轨迹的组记录数据。控制器电路被配置为在非易失性高速缓冲存储器电路中存储来自重叠轨道的子集的数据的瓦块，同时数据瓦块中的至少一部分数据被更新。

3. 发明授权

US07774540B2 Storage system and method for opportunistic write-verify 有权
标题翻译：用于机会性写入验证的存储系统和方法
公开(公告)号：US07774540B2
公开(公告)日：2010-08-10
申请号：US12005448
申请日：2007-12-26
申请人： Chunqi Han , Anand Krishnamurthi Kulkarni , Richard M. H. New , Marco Sanvido
发明人： Chunqi Han , Anand Krishnamurthi Kulkarni , Richard M. H. New , Marco Sanvido
IPC分类号： G06F13/10
CPC分类号： G11B20/1879 , G11B20/1816 , G11B2020/1823 , G11B2020/1843
摘要： A storage system that stores verify commands for all the write commands requiring verification in a verify-list that will be processed as a background task is described. The verify-list can include coded data fields that flexibly designate selected alternative states or possibilities for how and where the user data is actually stored. Alternatives for the verify-list include storing the actual raw data, no data, the data in compressed form, a CRC type signature of the data and/or a pointer to a backup copy of the data that is stored either in non-volatile memory such as flash memory or on the disk media in a temporary area. In case of a verification error in various alternative embodiments the user data can be recovered using the backup copy in the verify-list in the write cache, the backup copy in flash memory or on the disk, or from the host.
摘要翻译：描述存储系统，其存储将要被处理为后台任务的验证列表中需要验证的所有写入命令的验证命令。验证列表可以包括灵活地指定所选择的备选状态的编码数据字段或用于实际存储用户数据的方式和位置的可能性。验证列表的替代方案包括存储实际原始数据，无数据，压缩形式的数据，数据的CRC类型签名和/或指向存储在非易失性存储器中的数据的备份副本的指针例如闪存或临时区域中的磁盘介质上。在各种替代实施例中的验证错误的情况下，可以使用写入高速缓存中的验证列表中的备份副本，闪存中的备份副本，或者从主机恢复用户数据。

4. 发明申请

US20100030958A1 Random Number Generation For a Host System Using a Hard Disk Drive 有权
标题翻译：使用硬盘驱动器的主机系统的随机数生成
公开(公告)号：US20100030958A1
公开(公告)日：2010-02-04
申请号：US11963839
申请日：2007-12-23
申请人： Cyril Guyot , Zvonimir Bandic , Anand Krishnamurthi Kulkarni
发明人： Cyril Guyot , Zvonimir Bandic , Anand Krishnamurthi Kulkarni
IPC分类号： G06F12/00 , G06F7/58 , G06F12/14
CPC分类号： G06F7/58
摘要： A hard disk drive is provided for enhancing random number generation. In particular embodiments, the hard disk drive includes a storage subsystem and a controller. The controller generates a random number based on information associated with the storage subsystem. The controller transmits the random number to a host system.
摘要翻译：提供了一个硬盘驱动器来增强随机数生成。在特定实施例中，硬盘驱动器包括存储子系统和控制器。控制器基于与存储子系统相关联的信息生成随机数。控制器将随机数发送到主机系统。

5. 发明申请

US20090172324A1 Storage system and method for opportunistic write-verify 有权
标题翻译：用于机会性写入验证的存储系统和方法
公开(公告)号：US20090172324A1
公开(公告)日：2009-07-02
申请号：US12005448
申请日：2007-12-26
申请人： Chunqi Han , Anand Krishnamurthi Kulkarni , Richard M.H. New , Marco Sanvido
发明人： Chunqi Han , Anand Krishnamurthi Kulkarni , Richard M.H. New , Marco Sanvido
IPC分类号： G06F12/00
CPC分类号： G11B20/1879 , G11B20/1816 , G11B2020/1823 , G11B2020/1843
摘要： A storage system that stores verify commands for all the write commands requiring verification in a verify-list that will be processed as a background task is described. The verify-list can include coded data fields that flexibly designate selected alternative states or possibilities for how and where the user data is actually stored. Alternatives for the verify-list include storing the actual raw data, no data, the data in compressed form, a CRC type signature of the data and/or a pointer to a backup copy of the data that is stored either in non-volatile memory such as flash memory or on the disk media in a temporary area. In case of a verification error in various alternative embodiments the user data can be recovered using the backup copy in the verify-list in the write cache, the backup copy in flash memory or on the disk, or from the host.
摘要翻译：描述存储系统，其存储将要被处理为后台任务的验证列表中需要验证的所有写入命令的验证命令。验证列表可以包括灵活地指定所选择的备选状态的编码数据字段或用于实际存储用户数据的方式和位置的可能性。验证列表的替代方案包括存储实际原始数据，无数据，压缩形式的数据，数据的CRC类型签名和/或指向存储在非易失性存储器中的数据的备份副本的指针例如闪存或临时区域中的磁盘介质上。在各种替代实施例中的验证错误的情况下，可以使用写入高速缓存中的验证列表中的备份副本，闪存中的备份副本，或者从主机恢复用户数据。

6. 发明申请

US20090157942A1 Techniques For Data Storage Device Virtualization 有权
标题翻译：数据存储设备虚拟化技术
公开(公告)号：US20090157942A1
公开(公告)日：2009-06-18
申请号：US11959293
申请日：2007-12-18
申请人： Anand Krishnamurthi Kulkarni
发明人： Anand Krishnamurthi Kulkarni
IPC分类号： G06F12/00
CPC分类号： G06F3/0664 , G06F3/0604 , G06F3/0629 , G06F3/0673
摘要： A data storage device comprises virtual storage devices that are each assigned to a subset of data sectors in a non-volatile memory of the data storage device. The data storage device receives configuration metadata for configuring each of the virtual storage devices from a host operating system. The configuration metadata is received in a standard format that is file system independent. The configuration metadata comprises a range of logical block addresses and a virtual storage device number assigned to each of the virtual storage devices. Each of the virtual storage device numbers is a unique identifier used by the data storage device to differentiate between the virtual storage devices. The data storage device uses the virtual storage device numbers and logical block addresses to identify data sectors in the virtual storage devices that are accessible by virtual machine operating systems.
摘要翻译：数据存储设备包括虚拟存储设备，每个虚拟存储设备分配给数据存储设备的非易失性存储器中的数据扇区的子集。数据存储设备从主机操作系统接收用于配置每个虚拟存储设备的配置元数据。以与文件系统无关的标准格式接收配置元数据。配置元数据包括分配给每个虚拟存储设备的逻辑块地址范围和虚拟存储设备号。每个虚拟存储设备号是由数据存储设备用于区分虚拟存储设备的唯一标识符。数据存储设备使用虚拟存储设备号和逻辑块地址来识别虚拟机操作系统可访问的虚拟存储设备中的数据扇区。

7. 发明申请

US20090019208A1 Techniques For Implementing Virtual Storage Devices 有权
标题翻译：实现虚拟存储设备的技术
公开(公告)号：US20090019208A1
公开(公告)日：2009-01-15
申请号：US11777850
申请日：2007-07-13
申请人： Marco Sanvido , Anand Krishnamurthi Kulkarni
发明人： Marco Sanvido , Anand Krishnamurthi Kulkarni
IPC分类号： G06F12/00
CPC分类号： G06F9/45558 , G06F2009/45579
摘要： Some embodiments include a storage device with a storage medium having a memory capacity. The storage device also includes virtual storage device firmware that is configured to directly respond to commands from a guest operating system in a virtual machine for accesses to a subset of the memory capacity of the storage medium when a virtual storage device is enabled.
摘要翻译：一些实施例包括具有存储容量的存储介质的存储设备。存储设备还包括虚拟存储设备固件，其被配置为在虚拟机中直接响应来自客户操作系统的命令，以便在启用虚拟存储设备时访问存储介质的存储器容量的子集。

8. 发明申请

US20080114930A1 DISK DRIVE WITH CACHE HAVING VOLATILE AND NONVOLATILE MEMORY 有权
标题翻译：磁带驱动器具有易失性和非易失性存储器的缓存
公开(公告)号：US20080114930A1
公开(公告)日：2008-05-15
申请号：US11559346
申请日：2006-11-13
申请人： Marco Sanvido , Anand Krishnamurthi Kulkarni
发明人： Marco Sanvido , Anand Krishnamurthi Kulkarni
IPC分类号： G06F12/00
CPC分类号： G06F12/0866 , G06F2212/225 , G06F2212/286 , Y02D10/13
摘要： A disk drive that includes nonvolatile memory for use when the disk drive is in standby mode also uses the nonvolatile memory, together with a volatile memory, as a cache when the disk drive is in both standby and non-standby mode. Each of the data blocks stored on the disks is also stored in a cache line of either the volatile memory or the nonvolatile memory. Each cache line in both the volatile and nonvolatile memory stores one or more data blocks and an associated tag. The tag contains at least a portion of the logical block address that corresponds to the data block that is stored in the cache line. The volatile memory also has locations allocated to store tags that “shadow” the tags in the nonvolatile memory. By searching the shadow tags in the faster volatile memory, it can be determined if a data block is in the nonvolatile memory without searching the slower nonvolatile memory.
摘要翻译：当磁盘驱动器处于待机模式时，包含非易失性存储器的磁盘驱动器在磁盘驱动器处于待机模式时也将非易失性存储器与易失性存储器一起用作高速缓存。存储在磁盘上的每个数据块也存储在易失性存储器或非易失性存储器的高速缓存行中。易失性和非易失性存储器中的每个高速缓存线存储一个或多个数据块和相关联的标签。标签包含对应于存储在高速缓存行中的数据块的逻辑块地址的至少一部分。易失性存储器还具有分配用于存储“阴影”非易失性存储器中的标签的标签的位置。通过在快速易失性存储器中搜索阴影标签，可以确定数据块是否在非易失性存储器中，而不需要搜索较慢的非易失性存储器。

9. 发明授权

US08910020B2 Intelligent bit recovery for flash memory 有权
标题翻译：闪存智能位恢复
公开(公告)号：US08910020B2
公开(公告)日：2014-12-09
申请号：US13285873
申请日：2011-10-31
申请人： Jack Edward Frayer , Aaron Keith Olbrich , Paul Roger Stonelake , Anand Krishnamurthi Kulkarni , Yale Yueh Ma
发明人： Jack Edward Frayer , Aaron Keith Olbrich , Paul Roger Stonelake , Anand Krishnamurthi Kulkarni , Yale Yueh Ma
IPC分类号： G11C29/00 , G11C11/56 , G11C16/34 , G11C16/26
CPC分类号： G11C16/3427 , G11C11/5642 , G11C16/26 , G11C16/3422
摘要： A method and system for intelligent bit recovery identifies toggling bits, which change in value from one read to the next, and examines a subset of potential bit patterns. The subset is a fraction of the potential bit patterns, and is based on an understanding of the flash memory and the problems that may cause the toggling bits. The intelligent bit recovery may analyze at least one aspect of the flash memory to identify a problem, or plurality of problems, that is potentially causing the toggling bits, and to select the subset of potential bit patterns as potential solutions. The subset of potential bit patterns examined by the intelligent bit recovery is a small fraction of the entire set of potential bit patterns.
摘要翻译：用于智能位恢复的方法和系统识别切换位，其将值从一个读取改变为下一个，并且检查潜在位模式的子集。该子集是潜在位模式的一小部分，并且基于对闪存的理解以及可能导致切换位的问题。智能位恢复可以分析闪速存储器的至少一个方面，以识别潜在地导致切换位的问题或多个问题，并且选择潜在位模式的子集作为潜在解决方案。通过智能位恢复检查的潜在位模式的子集是整个潜在位模式集合的一小部分。

10. 发明授权

US08315394B2 Techniques for encrypting data on storage devices using an intermediate key 有权
标题翻译：使用中间密钥加密存储设备上的数据的技术
公开(公告)号：US08315394B2
公开(公告)日：2012-11-20
申请号：US11923123
申请日：2007-10-24
申请人： Marco Sanvido , Anand Krishnamurthi Kulkarni , Cyril Guyot , Richard M. H. New , Jorge Campello de Souza
发明人： Marco Sanvido , Anand Krishnamurthi Kulkarni , Cyril Guyot , Richard M. H. New , Jorge Campello de Souza
IPC分类号： G06F21/00
CPC分类号： H04L9/0822 , H04L9/0863
摘要： A data storage device encrypts data stored in non-volatile memory using a bulk encryption key. The data storage device uses a key derivation function to generate an initial encryption key. The data storage device then wraps an intermediate encryption key with the initial encryption key and stores the wrapped intermediate key in the non-volatile memory. The data storage device wraps the bulk encryption key with the intermediate encryption key and stores the wrapped bulk encryption key in the non-volatile memory. The data storage device can unwrap the wrapped intermediate key to generate the intermediate encryption key using the initial encryption key. The data storage device can unwrap the wrapped bulk encryption key to generate the bulk encryption key using the intermediate encryption key. The data storage device decrypts data stored in the non-volatile memory using the bulk encryption key.
摘要翻译：数据存储设备使用批量加密密钥对存储在非易失性存储器中的数据进行加密。数据存储装置使用密钥导出函数来生成初始加密密钥。然后，数据存储设备将具有初始加密密钥的中间加密密钥包裹起来，并将包裹的中间密钥存储在非易失性存储器中。数据存储设备将批量加密密钥与中间加密密钥打包，并将包装的批量加密密钥存储在非易失性存储器中。数据存储设备可以使用初始加密密钥解包包裹的中间密钥以产生中间加密密钥。数据存储设备可以使用中间加密密钥解开包装的批量加密密钥以生成批量加密密钥。数据存储装置使用批量加密密钥对存储在非易失性存储器中的数据进行解密。

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