公开(公告)号：US20140201555A1

公开(公告)日：2014-07-17

申请号：US14225002

申请日：2014-03-25

Applicant: NetApp, Inc.

Inventor： Sridhar Balasubramanian

IPC: G06F3/06

CPC classification number: G06F3/0665 ,  G06F3/0625 ,  G06F3/0634 ,  G06F3/0647 ,  G06F3/0689 ,  G11B19/209 ,  Y02D10/154

Abstract: A method and system for manipulating a spin state of each disk in a drive array is disclosed. In one embodiment, a method includes monitoring input/output (I/O) requests to each disk drive in a disk array and identifying any disk drive as an inactive disk drive based on a number of I/O requests directed to said any disk drive for a given time interval. The method further includes moving data from the inactive disk drive to an active disk drive having a free disk space to store the data and updating metadata associated with the data using a log-structured file system for the disk array. Further, the method includes manipulating a spin state of the inactive disk drive by spinning down the inactive disk drive to conserve power. Furthermore, the method includes redirecting subsequent I/O requests for the inactive disk drive to the active disk drive by accessing the metadata of the log-structured file system.

公开(公告)号：US09003115B2

公开(公告)日：2015-04-07

申请号：US14225002

申请日：2014-03-25

Applicant: NetApp, Inc.

Inventor： Sridhar Balasubramanian

IPC: G06F3/06 ,  G06F12/00 ,  G11B19/20

CPC classification number: G06F3/0665 ,  G06F3/0625 ,  G06F3/0634 ,  G06F3/0647 ,  G06F3/0689 ,  G11B19/209 ,  Y02D10/154

Abstract: A method and system for manipulating a spin state of each disk in a drive array is disclosed. In one embodiment, a method includes monitoring input/output (I/O) requests to each disk drive in a disk array and identifying any disk drive as an inactive disk drive based on a number of I/O requests directed to said any disk drive for a given time interval. The method further includes moving data from the inactive disk drive to an active disk drive having a free disk space to store the data and updating metadata associated with the data using a log-structured file system for the disk array. Further, the method includes manipulating a spin state of the inactive disk drive by spinning down the inactive disk drive to conserve power. Furthermore, the method includes redirecting subsequent I/O requests for the inactive disk drive to the active disk drive by accessing the metadata of the log-structured file system.

Abstract translation: 公开了一种用于操纵驱动阵列中每个盘的自旋状态的方法和系统。 在一个实施例中，一种方法包括监视对磁盘阵列中的每个磁盘驱动器的输入/输出（I / O）请求，并且基于指向所述任何磁盘驱动器的多个I / O请求，将任何磁盘驱动器识别为非活动磁盘驱动器 给定的时间间隔。 该方法还包括将数据从非活动磁盘驱动器移动到具有可用磁盘空间的活动磁盘驱动器，以使用用于磁盘阵列的日志结构文件系统存储数据和更新与数据相关联的元数据。 此外，该方法包括通过旋转非活动磁盘驱动器以节省功率来操纵非活动磁盘驱动器的自旋状态。 此外，该方法包括通过访问日志结构化文件系统的元数据将非活动磁盘驱动器的后续I / O请求重定向到活动磁盘驱动器。

公开(公告)号：US20140029132A1

公开(公告)日：2014-01-30

申请号：US14047520

申请日：2013-10-07

Applicant: NetApp, Inc.

Inventor： Sridhar Balasubramanian

IPC: G11B19/20

CPC classification number: G06F3/0665 ,  G06F3/0625 ,  G06F3/0634 ,  G06F3/0647 ,  G06F3/0689 ,  G11B19/209 ,  Y02D10/154

Abstract: A method and system for manipulating a spin state of each disk in a drive array is disclosed. In one embodiment, a method includes monitoring input/output (I/O) requests to each disk drive in a disk array and identifying any disk drive as an inactive disk drive based on a number of I/O requests directed to said any disk drive for a given time interval. The method further includes moving data from the inactive disk drive to an active disk drive having a free disk space to store the data and updating metadata associated with the data using a log-structured file system for the disk array. Further, the method includes manipulating a spin state of the inactive disk drive by spinning down the inactive disk drive to conserve power. Furthermore, the method includes redirecting subsequent I/O requests for the inactive disk drive to the active disk drive by accessing the metadata of the log-structured file system.

Abstract translation: 公开了一种用于操纵驱动阵列中每个盘的自旋状态的方法和系统。 在一个实施例中，一种方法包括监视对磁盘阵列中的每个磁盘驱动器的输入/输出（I / O）请求，并且基于指向所述任何磁盘驱动器的多个I / O请求，将任何磁盘驱动器识别为非活动磁盘驱动器 给定的时间间隔。 该方法还包括将数据从非活动磁盘驱动器移动到具有可用磁盘空间的活动磁盘驱动器，以使用用于磁盘阵列的日志结构文件系统存储数据和更新与数据相关联的元数据。 此外，该方法包括通过旋转非活动磁盘驱动器以节省功率来操纵非活动磁盘驱动器的自旋状态。 此外，该方法包括通过访问日志结构化文件系统的元数据将非活动磁盘驱动器的后续I / O请求重定向到活动磁盘驱动器。

公开(公告)号：US08725945B2

公开(公告)日：2014-05-13

申请号：US14047520

申请日：2013-10-07

Applicant: NetApp, Inc.

Inventor： Sridhar Balasubramanian

IPC: G06F3/06 ,  G06F12/00

CPC classification number: G06F3/0665 ,  G06F3/0625 ,  G06F3/0634 ,  G06F3/0647 ,  G06F3/0689 ,  G11B19/209 ,  Y02D10/154

Abstract: A method and system for manipulating a spin state of each disk in a drive array is disclosed. In one embodiment, a method includes monitoring input/output (I/O) requests to each disk drive in a disk array and identifying any disk drive as an inactive disk drive based on a number of I/O requests directed to said any disk drive for a given time interval. The method further includes moving data from the inactive disk drive to an active disk drive having a free disk space to store the data and updating metadata associated with the data using a log-structured file system for the disk array. Further, the method includes manipulating a spin state of the inactive disk drive by spinning down the inactive disk drive to conserve power. Furthermore, the method includes redirecting subsequent I/O requests for the inactive disk drive to the active disk drive by accessing the metadata of the log-structured file system.

Abstract translation: 公开了一种用于操纵驱动阵列中每个盘的自旋状态的方法和系统。 在一个实施例中，一种方法包括监视对磁盘阵列中的每个磁盘驱动器的输入/输出（I / O）请求，并且基于指向所述任何磁盘驱动器的多个I / O请求，将任何磁盘驱动器识别为非活动磁盘驱动器 给定的时间间隔。 该方法还包括将数据从非活动磁盘驱动器移动到具有可用磁盘空间的活动磁盘驱动器，以使用用于磁盘阵列的日志结构文件系统存储数据和更新与数据相关联的元数据。 此外，该方法包括通过旋转非活动磁盘驱动器以节省功率来操纵非活动磁盘驱动器的自旋状态。 此外，该方法包括通过访问日志结构化文件系统的元数据将非活动磁盘驱动器的后续I / O请求重定向到活动磁盘驱动器。