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1.发明申请公开(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。
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2.发明申请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
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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公开(公告)号：US20120110343A1
公开(公告)日：2012-05-03
申请号：US12925807
申请日：2010-10-29
IPC分类号： G06F12/14
CPC分类号： G06F21/80 , G06F2221/2101 , G06F2221/2151 , H04L9/0894 , H04L9/3242 , H04L9/3297
摘要： Secure timestamps created by a data storage device are described. Metadata timestamp is created for each recorded unit of data (such as a sector) The HDD performs the time-stamping in a secure manner. The timestamp is made secure by performing a secure operation (i.e. one that can only be performed by the HDD) using the data and timestamp. The secure operation uses a secure key that is built-in to the storage device and is not readable outside of the device. In some embodiments the secure operation is encryption using the secure key. In other embodiments the secure operation is a hash code function (such as a Hash-based Message Authentication Code (HMAC) function) that uses the secure key to generate a hash code using at least the recorded data and the timestamp as input. The hash code is then included in the metadata that is recorded for the data unit.
摘要翻译： 描述由数据存储设备创建的安全时间戳。 为每个记录的数据单元（例如扇区）创建元数据时间戳。HDD以安全的方式执行时间戳。 通过使用数据和时间戳执行安全操作（即只能由HDD执行的）来使时间戳变得安全。 安全操作使用存储设备内置的安全密钥，并且不能在设备外部读取。 在一些实施例中，安全操作是使用安全密钥的加密。 在其他实施例中，安全操作是使用安全密钥使用至少所记录的数据和时间戳作为输入来生成散列码的散列码功能（例如基于哈希的消息认证码（HMAC）功能））。 然后将哈希码包括在为数据单元记录的元数据中。
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公开(公告)号：US07880990B2
公开(公告)日：2011-02-01
申请号：US12332287
申请日：2008-12-10
IPC分类号： G11B5/09
摘要： Patterned-media magnetic recording disks are made from a master template that has nondata regions that contain a pattern of one or more discrete nondata islands and discrete gaps, with the pattern representing a scrambled number. All disks made from the master template, or from replica molds made from the master, will have the same patterns. When the disks are DC-magnetized so that all the nondata islands are magnetized in the same direction, these patterns will include one or more of discrete magnetized nondata islands and discrete nonmagnetic gaps that are scrambled in a pseudo-random manner. During operation of the disk drive the patterns are detected by the read head and interpreted within the disk drive using knowledge of the pseudo-random scrambling function, so that reading and writing of data can occur in the conventional manner. If the disks are copied in an attempt to replicate the master template, the resulting disks will be inoperable in a disk drive because of the scrambling.
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公开(公告)号：US20080155680A1
公开(公告)日：2008-06-26
申请号：US11615843
申请日：2006-12-22
IPC分类号： G06F7/04
CPC分类号： G06F21/80
摘要： A verifiable security mode is provided for securing data on a storage device, such as a hard disk drive. When the verifiable security mode is enabled, only authenticated accesses to data stored on the storage device are permitted after entering a password. An end user is prevented from disabling the verifiable security mode. The verifiable security mode can be set to allow or disallow an administrator from disabling the verifiable security mode. The verifiable security mode can be implemented, for example, in firmware on a hard disk drive (HDD).
摘要翻译： 提供了可验证的安全模式，用于将数据保护在诸如硬盘驱动器的存储设备上。 当启用可验证的安全模式时，只有在输入密码后才允许对存储设备上存储的数据进行身份验证访问。 防止最终用户禁用可验证的安全模式。 可验证的安全模式可以设置为允许或禁止管理员禁用可验证的安全模式。 可验证的安全模式可以例如在硬盘驱动器（HDD）上的固件中实现。
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6.发明授权Implementing enhanced data read for multi-level cell (MLC) memory using threshold voltage-drift or resistance drift tolerant moving baseline memory data encoding 有权使用阈值电压漂移或电阻漂移容限移动基线存储器数据编码来实现对多电平单元（MLC）存储器的增强型数据读取公开(公告)号：US09208871B2
公开(公告)日：2015-12-08
申请号：US13361918
申请日：2012-01-30
CPC分类号： G11C13/0035 , G11C11/5628 , G11C11/5642 , G11C11/5678 , G11C13/004 , G11C16/26 , G11C16/349 , G11C2013/0054
摘要： A method and apparatus are provided for implementing enhanced data read for multi-level cell (MLC) memory using threshold-voltage-drift or resistance-drift tolerant moving baseline memory data encoding. A data read back for data written to the MLC memory using threshold-voltage-drift or resistance-drift tolerant moving baseline memory data encoding is performed, higher voltage and lower voltage levels are compared, and respective data values are identified responsive to the compared higher voltage and lower voltage levels.
摘要翻译： 提供了一种用于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）存储器的增强数据读取的方法和装置。 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读回，比较较高电压和较低电压电平，并且响应于比较的较高电压 电压和低电压电平。
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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
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。
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公开(公告)号：US08736993B2
公开(公告)日：2014-05-27
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： G11B27/00
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。
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9.发明申请ICC-NCQ Command Scheduling for Shingle-written Magnetic Recording (SMR) Drives 有权用于单片磁记录（SMR）驱动器的ICC-NCQ命令调度公开(公告)号：US20140006707A1
公开(公告)日：2014-01-02
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： G06F12/08
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。 估计完成时间是根据驱动器必须执行的内部子命令来确定的，以完成主机读或写命令，考虑到所有或部分数据是否将被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。
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10.发明申请IMPLEMENTING ENHANCED DATA READ FOR MULTI-LEVEL CELL (MLC) MEMORY USING THRESHOLD VOLTAGE-DRIFT OR RESISTANCE DRIFT TOLERANT MOVING BASELINE MEMORY DATA ENCODING 有权使用阈值电压缓冲或电阻干扰实现增强型数据读取多级存储器（MLC）存储器容错移动基线存储器数据编码公开(公告)号：US20130194865A1
公开(公告)日：2013-08-01
申请号：US13361918
申请日：2012-01-30
CPC分类号： G11C13/0035 , G11C11/5628 , G11C11/5642 , G11C11/5678 , G11C13/004 , G11C16/26 , G11C16/349 , G11C2013/0054
摘要： A method and apparatus are provided for implementing enhanced data read for multi-level cell (MLC) memory using threshold-voltage-drift or resistance-drift tolerant moving baseline memory data encoding. A data read back for data written to the MLC memory using threshold-voltage-drift or resistance-drift tolerant moving baseline memory data encoding is performed, higher voltage and lower voltage levels are compared, and respective data values are identified responsive to the compared higher voltage and lower voltage levels.
摘要翻译： 提供了一种用于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）存储器的增强数据读取的方法和装置。 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读回，比较较高电压和较低电压电平，并且响应于比较的较高电压 电压和低电压电平。
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