公开(公告)号：US20180143763A1

公开(公告)日：2018-05-24

申请号：US15358582

申请日：2016-11-22

Applicant: NetApp, Inc.

Inventor： Sriram Popuri ,  Sahir Maredia ,  Gargi Srinivas

IPC: G06F3/06 ,  G06F11/20

CPC classification number: G06F3/0604 ,  G06F3/0617 ,  G06F3/0635 ,  G06F3/067 ,  G06F11/1425 ,  G06F11/20 ,  G06F11/2094 ,  G06F2201/805 ,  G06F2201/815 ,  G06F2201/85 ,  G06F2201/875 ,  H04L67/1097

Abstract: Methods, non-transitory computer readable media, and devices that dynamically adjust a logical unit number fault domain in a distributed storage area network environment includes determining when at least one of a plurality of nodes of a cluster is cut off from others of the plurality of nodes of the cluster. Any logical unit numbers (LUNs) owned by each of the plurality of nodes are identified. A fault domain for any of the identified LUNs owned by the at least one of the plurality of nodes determined to be cut off is adjusted from a distributed task set mode (DTM) of operation to a single task set mode (STM) of operation. This adjustment is made without any communication from the DTM operation to the STM operation to any of one or more host computing devices interacting with the cluster.

公开(公告)号：US20170318092A1

公开(公告)日：2017-11-02

申请号：US15142098

申请日：2016-04-29

Applicant: NetApp, Inc.

Inventor： Sahir Maredia ,  Martin George ,  Gargi Srinivas ,  Sriram Popuri

IPC: H04L29/08 ,  H04L12/911

CPC classification number: H04L67/1097 ,  G06F9/5061 ,  H04L29/08072 ,  H04L45/28 ,  H04L47/70

Abstract: In some embodiments, a cluster computing system notifies a host system that a first path to a resource in the cluster computing system is optimized and that a second path to the resource is non-optimized. The resource is owned or managed by a first computing node of the cluster computing system. The first path includes the first computing node. The second path includes a second computing node and an intra-cluster connection between the second computing node and the first computing node. A disruption in the intra-cluster connection, which prevents communication between the first and second computing nodes via the intra-cluster connection, is identified. During a time period in which the disruption exists, the host system is notified that the first path is optimized and that the second path is unavailable, and input/output operations between the host system and the resource via the first path are continued.

公开(公告)号：US10168903B2

公开(公告)日：2019-01-01

申请号：US15358582

申请日：2016-11-22

Applicant: NetApp, Inc.

Inventor： Sriram Popuri ,  Sahir Maredia ,  Gargi Srinivas

IPC: G06F11/00 ,  G06F3/06 ,  G06F11/20 ,  G06F11/14 ,  H04L29/08

Abstract: Methods, non-transitory computer readable media, and devices that dynamically adjust a logical unit number fault domain in a distributed storage area network environment includes determining when at least one of a plurality of nodes of a cluster is cut off from others of the plurality of nodes of the cluster. Any logical unit numbers (LUNs) owned by each of the plurality of nodes are identified. A fault domain for any of the identified LUNs owned by the at least one of the plurality of nodes determined to be cut off is adjusted from a distributed task set mode (DTM) of operation to a single task set mode (STM) of operation. This adjustment is made without any communication from the DTM operation to the STM operation to any of one or more host computing devices interacting with the cluster.

公开(公告)号：US10205782B2

公开(公告)日：2019-02-12

申请号：US15142098

申请日：2016-04-29

Applicant: NetApp, Inc.

Inventor： Sahir Maredia ,  Martin George ,  Gargi Srinivas ,  Sriram Popuri

IPC: G06F15/16 ,  H04L29/08 ,  H04L12/703 ,  H04L12/911 ,  G06F9/50

Abstract: In some embodiments, a cluster computing system notifies a host system that a first path to a resource in the cluster computing system is optimized and that a second path to the resource is non-optimized. The resource is owned or managed by a first computing node of the cluster computing system. The first path includes the first computing node. The second path includes a second computing node and an intra-cluster connection between the second computing node and the first computing node. A disruption in the intra-cluster connection, which prevents communication between the first and second computing nodes via the intra-cluster connection, is identified. During a time period in which the disruption exists, the host system is notified that the first path is optimized and that the second path is unavailable, and input/output operations between the host system and the resource via the first path are continued.