公开(公告)号：US07672981B1

公开(公告)日：2010-03-02

申请号：US11680618

申请日：2007-02-28

Applicant: Sorin Faibish ,  William Whitney ,  Per Brashers ,  Gerald E. Cotter

Inventor： Sorin Faibish ,  William Whitney ,  Per Brashers ,  Gerald E. Cotter

IPC: G06F17/30

CPC classification number: G06F17/30079 ,  G06F17/30156 ,  Y10S707/99955

Abstract: For migration or de-duplication of a file system having a large number of files, a utility program traverses the file system to create a log of file-specific information about the file system. For identification of duplicates, the utility program produces a signature for each file. Respective instances of the utility program are started on multiple nodes upon which the file system is mounted. A fully qualified pathname is compiled during transfer of the log to a database. Multiple databases can be produced for the file system such that each database contains the file-specific information for a specified range of inode numbers. The database also maintains classification state for each file. For example, for a migration or replication process, the classification state identifies whether or not the file has been untouched, copied, linked, secondary-ized, source deleted, or modified.

Abstract translation: 对于具有大量文件的文件系统的迁移或重复数据删除，实用程序遍历文件系统以创建关于文件系统的文件特定信息的日志。 为了识别重复项，实用程序为每个文件生成签名。 实用程序的各个实例在安装文件系统的多个节点上启动。 在将日志传输到数据库期间，将编译完全限定的路径名​​。 可以为文件系统生成多个数据库，以便每个数据库包含指定范围的inode编号的文件特定信息。 数据库还维护每个文件的分类状态。 例如，对于迁移或复制过程，分类状态标识文件是否已被保护，复制，链接，二次化，源删除或修改。

公开(公告)号：US08903876B2

公开(公告)日：2014-12-02

申请号：US13585967

申请日：2012-08-15

Applicant: Amir Meir Michael ,  Song Liu ,  Jason Matthew Taylor ,  Yael Maguire ,  Per Brashers ,  Eitan Frachtenberg

Inventor： Amir Meir Michael ,  Song Liu ,  Jason Matthew Taylor ,  Yael Maguire ,  Per Brashers ,  Eitan Frachtenberg

IPC: G06F17/30

CPC classification number: G06F17/30168 ,  G06F17/30194 ,  G06F17/30221

Abstract: A file storage system is implemented by coordinating non-exhaustible and exhaustible storage devices. The exhaustible storage devices include lower grade flash based storage devices. The non-exhaustible storage devices are based on magnetic recording mechanisms or higher grade flash storage. The file storage system stores received content items on the exhaustible storage devices, and stores metadata for the content items and/or the file storage system on the non-exhaustible storage devices. During operation, the file storage system globally optimizes the content items on the exhaustible storage devices such that more heavily accessed items are moved to exhaustible storage devices that have experienced relatively few data operations. The file storage system moves less frequently accessed content items to exhaustible storage devices that have experienced a relatively large number of data operations. As such, the operation lifetime of the exhaustible storage devices as a whole can be prolonged.

Abstract translation: 文件存储系统通过协调不可耗尽和可耗尽的存储设备来实现。 可耗尽的存储设备包括较低级别的闪存存储设备。 不可耗尽的存储设备基于磁记录机构或更高等级的闪存存储。 文件存储系统将可接收的内容项目存储在可耗尽的存储装置上，并将用于内容项目和/或文件存储系统的元数据存储在不可耗尽的存储装置上。 在操作期间，文件存储系统全局地优化可耗尽存储设备上的内容项目，使得更多访问的项目被移动到经历相对较少的数据操作的可耗尽的存储设备。 文件存储系统将经常访问的内容项目移动到经历了相对大量数据操作的可耗尽的存储设备。 因此，可以延长整个可消耗的存储装置的操作寿命。

公开(公告)号：US08897017B2

公开(公告)日：2014-11-25

申请号：US13526272

申请日：2012-06-18

Applicant: Per Brashers ,  Jon Brian Ehlen ,  John Thomas Kenevey

Inventor： Per Brashers ,  Jon Brian Ehlen ,  John Thomas Kenevey

IPC: H05K7/14

CPC classification number: G06F1/187 ,  H05K7/1489

Abstract: A sliding mechanism and a swivel mechanism allow a user to quickly and safely access components of a computing system, such as hard disk drives, included in a chassis. A housing affixed to the chassis includes a tray, which is coupled to the housing by the sliding mechanism. The swivel mechanism also couples the tray to the housing and allows the tray to be pivoted about the swivel mechanism. For example, the tray may be extended out of the housing via the sliding mechanism, and the portion of the tray extending from the housing may be pivoted using the swivel mechanism to simplify access to components coupled to the tray.

Abstract translation: 滑动机构和旋转机构允许用户快速且安全地访问包括在底盘中的诸如硬盘驱动器之类的计算系统的部件。 固定在底盘上的壳体包括托盘，该托盘通过滑动机构联接到壳体。 旋转机构还将托盘连接到壳体并允许托盘围绕旋转机构枢转。 例如，托盘可以经由滑动机构从壳体延伸出来，并且从外壳延伸的托盘的部分可以使用旋转机构枢转，以简化与托盘连接的部件的通路。

公开(公告)号：US20140136575A1

公开(公告)日：2014-05-15

申请号：US13674021

申请日：2012-11-10

Applicant: Yuanyuan Zhao ,  Per Brashers

Inventor： Yuanyuan Zhao ,  Per Brashers

IPC: G06F17/30

CPC classification number: G06F16/215

Abstract: System and method for log-structured garbage collection are provided. In particular, some embodiments use write pointer to read pointer offsets to enable reclamation of space within a log-structured storage medium (e.g., sequential forward only write mechanisms such as SSD, Tape, Shingled Drives, Flash Drives, etc.). These techniques allow the garbage collection system to reclaim space without copying data from one storage medium to another. Instead of copying the data, various embodiments reset the write and read pointers. In addition, different retention policies can be easily enforced while allowing for efficient garbage collection. For example, in a backup storage, each log-structured media can be designated with a retention time and only allow workloads with the specified retention time to be stored. As a result, the garbage collection incurs only read pointer movements.

Abstract translation: 提供了日志结构垃圾收集的系统和方法。 特别地，一些实施例使用写指针来读取指针偏移量，以使得能够回收日志结构化存储介质（例如，诸如SSD，磁带，混合驱动器，闪存驱动器等顺序前进的写入机制）中的空间。 这些技术允许垃圾回收系统回收空间，而不将数据从一个存储介质复制到另一个存储介质。 代替复制数据，各种实施例重置写入和读取指针。 此外，可以容易地实施不同的保留策略，同时允许有效的垃圾回收。 例如，在备份存储中，可以将每个日志结构化介质指定为保留时间，并且只允许存储具有指定保留时间的工作负载。 结果，垃圾收集只会引起读取指针的移动。

公开(公告)号：US20140067778A1

公开(公告)日：2014-03-06

申请号：US13601733

申请日：2012-08-31

Applicant: Dhruba Borthakur ,  Per Brashers ,  Song Liu ,  Tomasz Nykiel

Inventor： Dhruba Borthakur ,  Per Brashers ,  Song Liu ,  Tomasz Nykiel

IPC: G06F17/30

CPC classification number: G06F16/185

Abstract: A method of operation of a storage control system includes: configuring a state change policy on a data server, the state change policy including an online duration for a storage device; activating the storage device based on the state change policy; mounting the storage device based on the state change policy; and scheduling a filesystem maintenance task to be performed on the storage device based on the state change policy.

Abstract translation: 存储控制系统的操作方法包括：在数据服务器上配置状态改变策略，所述状态改变策略包括存储设备的在线持续时间; 基于状态改变策略激活存储设备; 根据国家变更政策安装存储设备; 并根据状态改变策略调度对存储设备执行的文件系统维护任务。

公开(公告)号：US20130335913A1

公开(公告)日：2013-12-19

申请号：US13526272

申请日：2012-06-18

Applicant: Per Brashers ,  Jon Brian Ehlen ,  John Thomas Kenevey

Inventor： Per Brashers ,  Jon Brian Ehlen ,  John Thomas Kenevey

IPC: G06F1/16 ,  H05K7/14

CPC classification number: G06F1/187 ,  H05K7/1489

Abstract: A sliding mechanism and a swivel mechanism allow a user to quickly and safely access components of a computing system, such as hard disk drives, included in a chassis. A housing affixed to the chassis includes a tray, which is coupled to the housing by the sliding mechanism. The swivel mechanism also couples the tray to the housing and allows the tray to be pivoted about the swivel mechanism. For example, the tray may be extended out of the housing via the sliding mechanism, and the portion of the tray extending from the housing may be pivoted using the swivel mechanism to simplify access to components coupled to the tray

Abstract translation: 滑动机构和旋转机构允许用户快速且安全地访问包括在底盘中的诸如硬盘驱动器之类的计算系统的部件。 固定在底盘上的壳体包括托盘，该托盘通过滑动机构联接到壳体。 旋转机构还将托盘连接到壳体并允许托盘围绕旋转机构枢转。 例如，托盘可以经由滑动机构延伸出壳体，并且从壳体延伸的托盘的部分可以使用旋转机构枢转，以简化到与托盘相连的部件的接近