公开(公告)号：US20190394273A1

公开(公告)日：2019-12-26

申请号：US16193347

申请日：2018-11-16

Applicant: NETAPP, INC.

Inventor： Jayanta Basak ,  Ameet Deulgaonkar ,  Siddhartha Nandi

IPC: H04L29/08 ,  G06N99/00 ,  H04L12/24

Abstract: Methods and systems for a networked storage system is provided. One method includes transforming by a processor, performance parameters associated with storage volumes of a storage system for representing each storage volume as a data point in a parametric space; generating by the processor, a plurality of bins in the parametric space using the transformed performance parameters; adjusting by the processor, bin boundaries for the plurality of bins for defining a plurality of service levels for the storage system based on the performance parameters; and using the defined plurality of service levels for operating the storage system.

公开(公告)号：US09342417B2

公开(公告)日：2016-05-17

申请号：US14280139

申请日：2014-05-16

Applicant: NetApp, Inc.

Inventor： Ameya Prakash Usgaonkar ,  Siddhartha Nandi

IPC: G06F11/00 ,  G06F11/20 ,  H04L29/08

CPC classification number: G06F11/2064 ,  G06F11/2005 ,  G06F11/2007 ,  G06F11/2071 ,  G06F11/2097 ,  H04L67/1097

Abstract: A live non-volatile (NV) replay technique enables a partner node to efficiently takeover a failed node of a high-availability pair in a multi-node storage cluster by dynamically replaying operations synchronously logged in a non-volatile random access memory (NVRAM) of the partner node, while also providing high performance during normal operation. Dynamic live replay may be effected through interpretation of metadata describing the logged operations. The metadata may specify a location and type of each logged operation within a partner portion of the NVRAM, as well as any dependency among the logged operation and any other logged operations that would impose an ordering constraint. During normal operation, the partner node may consult the metadata to identify dependent logged operations and dynamically replay those operations to satisfy one or more requests. Upon failure of the node, the partner node may replay, in parallel, those logged operations having no imposed ordering constraint, thereby reducing time needed to complete takeover of the failed node.

Abstract translation: 实时非易失性（NV）重播技术使得伙伴节点能够通过动态重放同步记录在非易失性随机存取存储器（NVRAM）中的操作来有效地接管多节点存储集群中的高可用性对的故障节点， 的合作伙伴节点，同时在正常运行期间也提供高性能。 可以通过解释描述记录的操作的元数据来实现动态实时重放。 元数据可以指定NVRAM的伙伴部分内的每个记录操作的位置和类型，以及记录的操作和将强制排序约束的任何其他记录操作之间的任何依赖关系。 在正常操作期间，伙伴节点可以查阅元数据以识别相关的记录操作，并动态地重放那些操作以满足一个或多个请求。 在节点发生故障时，伙伴节点可以并行地重播没有施加的排序约束的那些记录的操作，从而减少完成对故障节点的接管所需的时间。

公开(公告)号：US20150160864A1

公开(公告)日：2015-06-11

申请号：US14101016

申请日：2013-12-09

Applicant: NetApp, Inc.

Inventor： Ameya Prakash Usgaonkar ,  Siddhartha Nandi

IPC: G06F3/06 ,  G06F15/173

CPC classification number: G06F3/065 ,  G06F3/0611 ,  G06F3/067 ,  G06F15/17331 ,  G06F16/182 ,  G06F16/27 ,  H04L67/1095 ,  H04L67/1097

Abstract: Systems and methods for increasing high availability of data in a multi-node storage network are provided. Aspects may include allocating data and mirrored data associated with nodes in the storage network to storage units associated with the nodes. Upon identifying additional nodes added to the storage network, data and mirrored data associated with the nodes may be dynamically reallocated to the storage units. Systems and methods for high availability takeover in a high availability multi-node storage network are also provided. Aspects may include detecting a fault associated with a node in the storage network, and initiating a takeover routine in response to detecting the fault. The takeover routine may be implemented to reallocate data and mirrored data associated with the nodes in the storage network among the operable nodes and associated storage units.

Abstract translation: 提供了用于增加多节点存储网络中的数据的高可用性的系统和方法。 方面可以包括将与存储网络中的节点相关联的数据和镜像数据分配给与节点相关联的存储单元。 在识别添加到存储网络的附加节点时，与节点相关联的数据和镜像数据可以被动态地重新分配给存储单元。 还提供了在高可用性多节点存储网络中高可用性接管的系统和方法。 方面可以包括检测与存储网络中的节点相关联的故障，以及响应于检测到故障而发起接管例程。 可以实施接管例程以重新分配与可操作节点和相关联的存储单元之间的存储网络中的节点相关联的数据和镜像数据。