公开(公告)号：US20200042195A1

公开(公告)日：2020-02-06

申请号：US16653165

申请日：2019-10-15

Applicant: NetApp, Inc.

Inventor： Joey Parnell ,  Steven Schremmer ,  Brandon Thompson ,  Mahmoud K. Jibbe

IPC: G06F3/06 ,  G06F11/20

Abstract: A method, a computing device, and a non-transitory machine-readable medium for performing a multipath selection based on a determined quality of service for the paths. An example method includes a host computing device periodically polling a storage system for path information including an indication of a recommended storage controller. The host computing device periodically determines a quality of service information corresponding to a plurality of paths between the host computing device and a storage volume of the storage system, where at least one of the plurality of paths including the recommended storage controller. The host computing device identifies a fault corresponding to a path of the plurality of paths that routes I/O from the host computing device to the storage volume. The host computing device re-routes the I/O from the path to a different path of the plurality of paths, where the different path is selected for the re-routing based on the quality of service information and the path information.

公开(公告)号：US20190034094A1

公开(公告)日：2019-01-31

申请号：US15703169

申请日：2017-09-13

Applicant: NETAPP, INC.

Inventor： Mahmoud K. Jibbe ,  Dean Lang ,  Joey Parnell ,  Ryan Rodine ,  Joshua Briner

IPC: G06F3/06 ,  G06F12/0808

CPC classification number: G06F3/0611 ,  G06F3/0619 ,  G06F3/0635 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0689 ,  G06F12/0808 ,  G06F12/0868 ,  G06F12/0888 ,  G06F2212/1024 ,  G06F2212/313 ,  G06F2212/502 ,  G06F2212/621

Abstract: Systems and methods that result in a stable storage system are provided. In the storage system, the latency spikes may be reduced when multiple volumes are aggregated into transfer sets according to system characteristics. The storage system transfers ownership of volumes in each transfer set as a single transaction. In the storage system, connectivity between the host and the storage controller is re-established based on the connectivity in a physical transport layer and a single path. In the storage system, pre-mature failback is also avoided when ownership of volumes is transferred back to a preferred storage controller when the same number of paths existed between the host and the preferred storage controller before and after a failover operation. Further, the storage system generates connectivity reports that display connectivity paths between hosts, storage controllers, and volumes.

公开(公告)号：US10521127B2

公开(公告)日：2019-12-31

申请号：US15703169

申请日：2017-09-13

Applicant: NETAPP, INC.

Inventor： Mahmoud K. Jibbe ,  Dean Lang ,  Joey Parnell ,  Ryan Rodine ,  Joshua Briner

IPC: G06F3/06 ,  G06F12/0808 ,  G06F12/0868 ,  G06F12/0888

Abstract: Systems and methods that result in a stable storage system are provided. In the storage system, the latency spikes may be reduced when multiple volumes are aggregated into transfer sets according to system characteristics. The storage system transfers ownership of volumes in each transfer set as a single transaction. In the storage system, connectivity between the host and the storage controller is re-established based on the connectivity in a physical transport layer and a single path. In the storage system, pre-mature failback is also avoided when ownership of volumes is transferred back to a preferred storage controller when the same number of paths existed between the host and the preferred storage controller before and after a failover operation. Further, the storage system generates connectivity reports that display connectivity paths between hosts, storage controllers, and volumes.

公开(公告)号：US10459640B2

公开(公告)日：2019-10-29

申请号：US15923445

申请日：2018-03-16

Applicant: NetApp, Inc.

Inventor： Joey Parnell ,  Steven Schremmer ,  Brandon Thompson ,  Mahmoud K. Jibbe

IPC: G06F12/00 ,  G06F3/06

Abstract: A method, a computing device, and a non-transitory machine-readable medium for performing a multipath selection based on a determined quality of service for the paths. An example method includes a host computing device periodically polling a storage system for path information including an indication of a recommended storage controller. The host computing device periodically determines a quality of service information corresponding to a plurality of paths between the host computing device and a storage volume of the storage system, where at least one of the plurality of paths including the recommended storage controller. The host computing device identifies a fault corresponding to a path of the plurality of paths that routes I/O from the host computing device to the storage volume. The host computing device re-routes the I/O from the path to a different path of the plurality of paths, where the different path is selected for the re-routing based on the quality of service information and the path information.

公开(公告)号：US11301139B2

公开(公告)日：2022-04-12

申请号：US16722270

申请日：2019-12-20

Applicant: NetApp, Inc.

Inventor： Mahmoud K. Jibbe ,  Dean Lang ,  Joey Parnell ,  Ryan Rodine ,  Joshua Briner

IPC: G06F3/06 ,  G06F12/0808 ,  G06F12/0888 ,  G06F12/0868

Abstract: Systems and methods that result in a stable storage system are provided. In the storage system, the latency spikes may be reduced when multiple volumes are aggregated into transfer sets according to system characteristics. The storage system transfers ownership of volumes in each transfer set as a single transaction. In the storage system, connectivity between the host and the storage controller is re-established based on the connectivity in a physical transport layer and a single path. In the storage system, pre-mature failback is also avoided when ownership of volumes is transferred back to a preferred storage controller when the same number of paths existed between the host and the preferred storage controller before and after a failover operation. Further, the storage system generates connectivity reports that display connectivity paths between hosts, storage controllers, and volumes.

公开(公告)号：US11068171B2

公开(公告)日：2021-07-20

申请号：US16653165

申请日：2019-10-15

Applicant: NetApp, Inc.

Inventor： Joey Parnell ,  Steven Schremmer ,  Brandon Thompson ,  Mahmoud K. Jibbe

IPC: G06F12/00 ,  G06F3/06 ,  G06F11/20

Abstract: A method, a computing device, and a non-transitory machine-readable medium for performing a multipath selection based on a determined quality of service for the paths. An example method includes a host computing device periodically polling a storage system for path information including an indication of a recommended storage controller. The host computing device periodically determines a quality of service information corresponding to a plurality of paths between the host computing device and a storage volume of the storage system, where at least one of the plurality of paths including the recommended storage controller. The host computing device identifies a fault corresponding to a path of the plurality of paths that routes I/O from the host computing device to the storage volume. The host computing device re-routes the I/O from the path to a different path of the plurality of paths, where the different path is selected for the re-routing based on the quality of service information and the path information.

公开(公告)号：US20190102093A1

公开(公告)日：2019-04-04

申请号：US15923445

申请日：2018-03-16

Applicant: NetApp. Inc.

Inventor： Joey Parnell ,  Steven Schremmer ,  Brandon Thompson ,  Mahmoud K. Jibbe

IPC: G06F3/06

Abstract: A method, a computing device, and a non-transitory machine-readable medium for performing a multipath selection based on a determined quality of service for the paths. An example method includes a host computing device periodically polling a storage system for path information including an indication of a recommended storage controller. The host computing device periodically determines a quality of service information corresponding to a plurality of paths between the host computing device and a storage volume of the storage system, where at least one of the plurality of paths including the recommended storage controller. The host computing device identifies a fault corresponding to a path of the plurality of paths that routes I/O from the host computing device to the storage volume. The host computing device re-routes the I/O from the path to a different path of the plurality of paths, where the different path is selected for the re-routing based on the quality of service information and the path information.