公开(公告)号：US07653847B1

公开(公告)日：2010-01-26

申请号：US11583767

申请日：2006-10-19

申请人： Bruce A. Liikanen ,  Eric D. Mudama ,  John W. VanLaanen ,  Andrew W. Vogan

发明人： Bruce A. Liikanen ,  Eric D. Mudama ,  John W. VanLaanen ,  Andrew W. Vogan

IPC分类号： G11C29/00

CPC分类号： G01R33/1207

摘要： Methods and structures for performing field flawscan to reduce manufacturing costs of a dynamic mapped storage device. In a dynamic mapped storage device in which all user supplied logical blocks are dynamically mapped by the storage device controller to physical disk blocks, features and aspects hereof permit flawscan testing of a storage device to be completed substantially concurrently with processing write requests for its intended application. A fraction of the storage device may be certified by an initial flawscan performed during manufacturing testing. Statistical sampling sufficient to assure a high probability of achieving specified capacity may be performed to reduce manufacturing time and costs in testing. Final flawscan of the remainder of the storage locations may be performed substantially concurrently with processing of write requests after the device is installed for its intended application. Mapping features and aspects hereof allow the storage device controller to perform flawscan and write operations concurrently.

摘要翻译： 用于执行现场扫描以降低动态映射存储设备的制造成本的方法和结构。 在其中所有用户提供的逻辑块由存储设备控制器动态地映射到物理磁盘块的动态映射存储设备中，其特征和方面允许对处理对其预期应用的写入请求的存储设备进行大量同时完成的扫描测试 。 存储设备的一小部分可以通过在制造测试期间执行的初始扫描进行认证。 可以执行足以确保实现特定容量的高概率的统计学抽样，以减少制造时间和测试成本。 存储位置的剩余部分的最终的扫描可以在装置针对其预期应用安装之后基本上同时执行写入请求的处理。 映射其特征和方面允许存储设备控制器同时执行扫描和写入操作。

公开(公告)号：US07620772B1

公开(公告)日：2009-11-17

申请号：US11583331

申请日：2006-10-19

申请人： Bruce A. Liikanen ,  Mike L. Mallary ,  John Mead ,  Eric D. Mudama ,  John W. VanLaanen ,  Andrew W. Vogan

发明人： Bruce A. Liikanen ,  Mike L. Mallary ,  John Mead ,  Eric D. Mudama ,  John W. VanLaanen ,  Andrew W. Vogan

IPC分类号： G06F12/00

CPC分类号： G11B27/3027 ,  G06F2211/1004 ,  G11B27/322 ,  G11B2220/20

摘要： Methods and structures for dynamic density control to improve reliability of a dynamically mapped storage device. In a dynamically mapped storage device in which all user supplied logical blocks are dynamically mapped by the storage device controller to physical disk blocks, features and aspects hereof provide for dynamically altering the recording density of user data stored on the storage device. So long as the physical capacity utilization of the storage device permits, new data stored on the device may be stored at lower density to improve reliability in reading back the recorded data. Further features and aspects hereof may reduce the recording density only for data deemed to be critical. Radial (track) density, longitudinal (bit) density, or both may be dynamically controlled to reduce recording density. As physical capacity utilization increases, data previously recorded at lower density may be migrated (re-recorded) at normal higher density.

摘要翻译： 动态密度控制的方法和结构，以提高动态映射存储设备的可靠性。 在其中所有用户提供的逻辑块由存储设备控制器动态映射到物理磁盘块的动态映射存储设备中，其特征和方面提供动态地改变存储在存储设备上的用户数据的记录密度。 只要存储设备的物理容量利用率允许，存储在设备上的新数据可以以较低密度存储，以提高读回记录数据的可靠性。 本文的其它特征和方面可以仅对于被认为是关键的数据来降低记录密度。 可以动态地控制径向（轨道）密度，纵向（位）密度或两者）以降低记录密度。 随着物理容量利用的增加，以较低密度记录的数据可能以正常较高的密度迁移（重新记录）。

公开(公告)号：US07685360B1

公开(公告)日：2010-03-23

申请号：US11583341

申请日：2006-10-19

申请人： Don Brunnett ,  Bruce A. Liikanen ,  John Mead ,  Eric D. Mudama ,  John W. VanLaanen ,  Andrew W. Vogan

发明人： Don Brunnett ,  Bruce A. Liikanen ,  John Mead ,  Eric D. Mudama ,  John W. VanLaanen ,  Andrew W. Vogan

IPC分类号： G06F12/00

CPC分类号： G06F3/064 ,  G06F3/0608 ,  G06F3/0676 ,  G06F12/0866

摘要： Methods and structures for appending metadata with recorded data in a dynamic mapped storage device. In a dynamically mapped storage device in which all user supplied logical blocks are dynamically mapped by the storage device controller to physical disk blocks, features and aspects hereof allow presently unused physical space to be used for storing additional metadata associated with recorded data. As the current capacity ratio of the storage device increases, appending of metadata may cease and previously recorded data including metadata may be re-recorded (migrated) to eliminate the appended metadata. The appended metadata may be used for enhanced diagnosis and analysis of characteristics of the operating storage device and may be used to restore the content of the storage device to an earlier state. The metadata may include, for example, track following position of the read/write head, temperature, head flying height, and time of day.

摘要翻译： 在动态映射存储设备中添加带有记录数据的元数据的方法和结构。 在其中所有用户提供的逻辑块由存储设备控制器动态映射到物理磁盘块的动态映射存储设备中，其特征和方面允许当前未使用的物理空间用于存储与记录数据相关联的附加元数据。 随着存储设备的当前容量比增加，元数据的附加可能停止，并且可以重新记录（迁移）包括元数据的先前记录的数据以消除附加的元数据。 附加的元数据可以用于增强对操作存储设备的特性的诊断和分析，并且可以用于将存储设备的内容恢复到更早的状态。 元数据可以包括例如读/写头的跟踪位置，温度，头部飞行高度和一天中的时间。

公开(公告)号：US20110246705A1

公开(公告)日：2011-10-06

申请号：US12752659

申请日：2010-04-01

申请人： Eric D. Mudama ,  David M. Jones ,  Andrew W. Vogan

发明人： Eric D. Mudama ,  David M. Jones ,  Andrew W. Vogan

IPC分类号： G06F12/00 ,  G06F12/02

CPC分类号： G11C16/3495

摘要： A method and system for wear leveling in a solid state drive by mapping the logical regions of the solid state drive that hold static content or information into the physical regions of the solid state drive that have erase counts more than an average erase count of all of the physical regions. By doing so, it allows the solid state drive to wear level itself naturally through continued usage. In one embodiment of the invention, the erase count of each physical region is incremented with every erasing operation of each physical region. The physical regions that have a high count of erase count operations are mapped with content of the logical regions with static content so that the possibility of future erase operations of these physical regions is reduced.

摘要翻译： 通过将固态驱动器的固定状态驱动器的保持静态内容或信息的逻辑区域映射到具有擦除的固态驱动器的物理区域中的大于全部的擦除次数的方法和系统 物理区域。 通过这样做，它允许固态驱动器通过持续使用自然地磨损水平。 在本发明的一个实施例中，每个物理区域的擦除次数随着每个物理区域的每次擦除操作而增加。 将具有高计数擦除计数操作的物理区域与具有静态内容的逻辑区域的内容进行映射，从而降低了这些物理区域的将来擦除操作的可能性。

公开(公告)号：US08621141B2

公开(公告)日：2013-12-31

申请号：US12752659

申请日：2010-04-01

申请人： Eric D. Mudama ,  David M. Jones ,  Andrew W. Vogan

发明人： Eric D. Mudama ,  David M. Jones ,  Andrew W. Vogan

IPC分类号： G06F12/00

CPC分类号： G11C16/3495

摘要： A method and system for wear leveling in a solid state drive by mapping the logical regions of the solid state drive that hold static content or information into the physical regions of the solid state drive that have erase counts more than an average erase count of all of the physical regions. By doing so, it allows the solid state drive to wear level itself naturally through continued usage. In one embodiment of the invention, the erase count of each physical region is incremented with every erasing operation of each physical region. The physical regions that have a high count of erase count operations are mapped with content of the logical regions with static content so that the possibility of future erase operations of these physical regions is reduced.

摘要翻译： 通过将固态驱动器的固定状态驱动器的保持静态内容或信息的逻辑区域映射到具有擦除的固态驱动器的物理区域中的大于全部的擦除次数的方法和系统 物理区域。 通过这样做，它允许固态驱动器通过持续使用自然地磨损水平。 在本发明的一个实施例中，每个物理区域的擦除次数随着每个物理区域的每次擦除操作而增加。 将具有高计数擦除计数操作的物理区域与具有静态内容的逻辑区域的内容进行映射，从而降低了这些物理区域的将来擦除操作的可能性。