公开(公告)号：US09304700B2

公开(公告)日：2016-04-05

申请号：US13865545

申请日：2013-04-18

Applicant: NETAPP, INC.

Inventor： Mayank Saxena ,  Rohan Gupta

IPC: G06F1/32 ,  G06F3/06

CPC classification number: G06F3/0625 ,  G06F1/3203 ,  G06F3/0605 ,  G06F3/0634 ,  G06F3/0689 ,  Y02D10/154

Abstract: System and method for remotely performing a power cycle operation for a storage shelf of a storage server using a control path independent of a data path used for processing I/O requests is provided. The storage server maintains a data structure for storing information regarding a state of a plurality of power latches that are used to control power for the storage shelf having an alternate control path module for receiving control commands via the control path. Depending on the state of the plurality of power latches, the storage server sends one or more commands to the alternate control path module to turn off power to the storage shelf during a power cycle operation. When the power shelf is powered off, the storage server waits for a certain duration and then sends one or more power on commands to the alternate control path module to power on the storage shelf.

Abstract translation: 提供了使用独立于用于处理I / O请求的数据路径的控制路径远程执行存储服务器的存储架的电力循环操作的系统和方法。 存储服务器维护用于存储关于用于控制具有用于经由控制路径接收控制命令的备用控制路径模块的存储架的电力的多个电源锁存器的状态的信息的数据结构。 根据多个电源锁存器的状态，存储服务器将一个或多个命令发送到备用控制路径模块，以在电力循环操作期间关闭对存储架的电力。 当电源柜关闭电源时，存储服务器等待一段时间，然后将一个或多个电源启动命令发送到备用控制路径模块，以启动存储机架。

公开(公告)号：US09836364B2

公开(公告)日：2017-12-05

申请号：US14864059

申请日：2015-09-24

Applicant: NetApp, Inc.

Inventor： Mayank Saxena ,  Melvin McGee

IPC: G06F11/20 ,  H04L12/707 ,  G06F13/42 ,  H04L12/801

CPC classification number: G06F11/201 ,  G06F11/0727 ,  G06F11/0793 ,  G06F11/2012 ,  G06F11/2089 ,  G06F13/426 ,  G06F2201/805 ,  G06F2201/85 ,  H04L45/22 ,  H04L47/35

Abstract: Technology is disclosed for recovering I/O modules in a storage system using in-band alternate control path (ACP) architecture (“the technology”). The technology enables a storage server to transmit control commands, e.g., for recovering an I/O module, to the I/O module over a data path that is typically used to transmit data commands. The control commands are typically transmitted using ACP that is separate from the data path. By enabling transmission of control commands over the data path, the technology eliminates the need for separate medium for ACP, at least in part, to transmit the control commands. The technology can be implemented in a pure in-band ACP mode, which supports recovering an I/O module of a storage shelf in which at least one I/O module is responsive, and/or in a mixed in-band ACP mode, which supports recovery of I/O modules of a storage shelf in which all I/O modules are non-responsive.

公开(公告)号：US20160283135A1

公开(公告)日：2016-09-29

申请号：US15057952

申请日：2016-03-01

Applicant: NETAPP, INC.

Inventor： Reyaz Ahmed ,  Mayank Saxena ,  Todd Jason Mills ,  Aleksandr Khasymski

IPC: G06F3/06

CPC classification number: G06F3/067 ,  G06F3/061 ,  G06F3/0659 ,  H04L29/08072

Abstract: Methods and systems for a storage environment are provided. A policy for an input/output (I/O) stream having a plurality of I/O requests for accessing storage at a storage device of the storage sub-system is translated into flow attributes so that the I/O stream can be assigned to one of a plurality of queues maintained for placing I/O requests based on varying priorities defined by set polices. When an I/O request for the associated policy is received by the storage sub-system; the storage sub-system determines a flow attribute associated with the I/O request and the policy; selects a queue for staging the I/O request, such that the selected queue is of either higher priority than what is indicated by the flow attribute or at least of a same priority as indicated by the flow attribute; and allocates storage sub-system resource for processing the received I/O request.

Abstract translation: 提供了存储环境的方法和系统。 具有用于访问在存储子系统的存储设备处的存储的多个I / O请求的输入/输出（I / O）流的策略被转换成流属性，使得可以将I / O流分配给 基于由设定的策略定义的不同优先级来维护用于放置I / O请求的多个队列之一。 当存储子系统接收到关联策略的I / O请求时; 存储子系统确定与I / O请求和策略相关联的流属性; 选择用于分段I / O请求的队列，使得所选队列的优先级高于由流属性指示的优先级或至少具有由流属性指示的优先级相同的优先级; 并分配用于处理所接收的I / O请求的存储子系统资源。

公开(公告)号：US20160019124A1

公开(公告)日：2016-01-21

申请号：US14864059

申请日：2015-09-24

Applicant: NetApp, Inc.

Inventor： Mayank Saxena ,  Melvin McGee

IPC: G06F11/20

CPC classification number: G06F11/201 ,  G06F11/0727 ,  G06F11/0793 ,  G06F11/2012 ,  G06F11/2089 ,  G06F13/426 ,  G06F2201/805 ,  G06F2201/85 ,  H04L45/22 ,  H04L47/35

Abstract: Technology is disclosed for recovering I/O modules in a storage system using in-band alternate control path (ACP) architecture (“the technology”). The technology enables a storage server to transmit control commands, e.g., for recovering an I/O module, to the I/O module over a data path that is typically used to transmit data commands. The control commands are typically transmitted using ACP that is separate from the data path. By enabling transmission of control commands over the data path, the technology eliminates the need for separate medium for ACP, at least in part, to transmit the control commands. The technology can be implemented in a pure in-band ACP mode, which supports recovering an I/O module of a storage shelf in which at least one I/O module is responsive, and/or in a mixed in-band ACP mode, which supports recovery of I/O modules of a storage shelf in which all I/O modules are non-responsive.

公开(公告)号：US20150205685A1

公开(公告)日：2015-07-23

申请号：US14160264

申请日：2014-01-21

Applicant: NetApp. Inc.

Inventor： Mayank Saxena ,  Melvin McGee

IPC: G06F11/20 ,  G06F13/42 ,  H04L12/707

CPC classification number: G06F11/201 ,  G06F11/0727 ,  G06F11/0793 ,  G06F11/2012 ,  G06F11/2089 ,  G06F13/426 ,  G06F2201/805 ,  G06F2201/85 ,  H04L45/22 ,  H04L47/35

Abstract: Technology is disclosed for recovering I/O modules in a storage system using in-band alternate control path (ACP) architecture (“the technology”). The technology enables a storage server to transmit control commands, e.g., for recovering an I/O module, to the I/O module over a data path that is typically used to transmit data commands. The control commands are typically transmitted using ACP that is separate from the data path. By enabling transmission of control commands over the data path, the technology eliminates the need for separate medium for ACP, at least in part, to transmit the control commands. The technology can be implemented in a pure in-band ACP mode, which supports recovering an I/O module of a storage shelf in which at least one I/O module is responsive, and/or in a mixed in-band ACP mode, which supports recovery of I/O modules of a storage shelf in which all I/O modules are non-responsive.

Abstract translation: 公开了用于使用带内替代控制路径（ACP）架构（“该技术”）在存储系统中恢复I / O模块的技术。 该技术使得存储服务器能够通过通常用于发送数据命令的数据路径向I / O模块发送例如用于恢复I / O模块的控制命令。 控制命令通常使用与数据路径分离的ACP传输。 通过使数据路径上的控制命令能够传输，该技术消除了对于ACP的单独介质的需要，至少部分地传送控制命令。 该技术可以以纯带内ACP模式实现，其支持恢复其中至少一个I / O模块响应的存储架的I / O模块和/或混合带内ACP模式， 其支持对所有I / O模块不响应的存储架的I / O模块的恢复。

公开(公告)号：US20140317431A1

公开(公告)日：2014-10-23

申请号：US13865545

申请日：2013-04-18

Applicant: NETAPP, INC.

Inventor： Mayank Saxena ,  Rohan Gupta

IPC: G06F1/32

CPC classification number: G06F3/0625 ,  G06F1/3203 ,  G06F3/0605 ,  G06F3/0634 ,  G06F3/0689 ,  Y02D10/154

Abstract: System and method for remotely performing a power cycle operation for a storage shelf of a storage server using a control path independent of a data path used for processing I/O requests is provided. The storage server maintains a data structure for storing information regarding a state of a plurality of power latches that are used to control power for the storage shelf having an alternate control path module for receiving control commands via the control path. Depending on the state of the plurality of power latches, the storage server sends one or more commands to the alternate control path module to turn off power to the storage shelf during a power cycle operation. When the power shelf is powered off, the storage server waits for a certain duration and then sends one or more power on commands to the alternate control path module to power on the storage shelf.

Abstract translation: 提供了使用独立于用于处理I / O请求的数据路径的控制路径远程执行存储服务器的存储架的电力循环操作的系统和方法。 存储服务器维护用于存储关于用于控制具有用于经由控制路径接收控制命令的备用控制路径模块的存储架的电力的多个电源锁存器的状态的信息的数据结构。 根据多个电源锁存器的状态，存储服务器将一个或多个命令发送到备用控制路径模块，以在电力循环操作期间关闭对存储架的电力。 当电源柜关闭电源时，存储服务器等待一段时间，然后将一个或多个电源启动命令发送到备用控制路径模块，以启动存储机架。