公开(公告)号：US11748204B1

公开(公告)日：2023-09-05

申请号：US17703307

申请日：2022-03-24

Applicant: NetApp, Inc.

Inventor： Sangramsinh Pandurang Pawar ,  Per Olov Wahlstrom ,  William Derby Dallas ,  Joseph Brown, Jr. ,  Houze Xu ,  John David McA'Nulty ,  Rajesh Rajaraman

IPC: G06F11/00 ,  G06F11/14 ,  G06F9/4401

CPC classification number: G06F11/1451 ,  G06F9/4411 ,  G06F11/1456 ,  G06F11/1471

Abstract: Systems and methods for making use of non-persistent storage as the journaling storage media for a virtual storage system are provided. According to one embodiment, in order to meet the needs of Extreme Low Latency Workloads while also seeking to provide predictable performance and the lowest possible latency, ephemeral storage of the virtual storage system is used to preserve state information (e.g., in the form of boot arguments and an operation log journal) across a host failure recovery scenario in which the virtual storage system is expected to be redeployed within a compute instance brought up by a cloud environment of a hyperscaler on the same host, thereby providing improved data durability (fewer host failure scenarios that result in lost data) as compared to the use of ephemeral memory of the compute instance and lower write latency than the use of persistent storage provided by the cloud environment.

公开(公告)号：US11546238B1

公开(公告)日：2023-01-03

申请号：US17456471

申请日：2021-11-24

Applicant: NETAPP, INC.

Inventor： Houze Xu ,  Yuepeng Qi

IPC: H04L43/0829 ,  H04L47/50 ,  H04L47/36 ,  H04L43/0823

Abstract: Methods and systems for a networked storage environment are provided. One method includes splitting, by a first node, a payload into a plurality of data packets, each data packet having a portion of the payload indicated by an offset value indicating a position of each portion within the payload; transmitting, by the first node, the plurality of data packets to a second node using a network connection for a transaction, each data packet including a header generated by the first node having the offset value and a payload size; receiving, by the first node, a message from the second node indicating an offset value of a missing payload of a missing data packet from among the plurality of data packets; and resending, by the first node, the missing data packet and any other data packet whose offset value occurs after the offset value of the missing payload.

公开(公告)号：US12095860B2

公开(公告)日：2024-09-17

申请号：US17976235

申请日：2022-10-28

Applicant: NetApp, Inc.

Inventor： Houze Xu ,  Yuepeng Qi ,  Yanbei Wang

IPC: G06F15/16 ,  H04L43/16 ,  H04L47/2416 ,  H04L67/104 ,  H04L67/1097

CPC classification number: H04L67/1097 ,  H04L43/16 ,  H04L47/2416 ,  H04L67/104

Abstract: Data traffic management in a computing environment utilizing direct memory access functionality is disclosed. A management agent is configured to operate within a storage node. The management agent includes a storage interface to communicate with a first set of storage devices, a management memory interface to communicate with a first management memory, and an interconnect (IC) interface to communicate with a remote peer node. The management agent controls data traffic between the storage node and the peer node to provide at least mirroring of the first management memory to the peer node and mirroring of a second management memory on the peer node to the storage node. The management agent further controls the data traffic using a traffic control approach selected based on at least a performance evaluation of an IC fabric accessible via the IC interface.

公开(公告)号：US20240121298A1

公开(公告)日：2024-04-11

申请号：US18467370

申请日：2023-09-14

Applicant: NetApp, Inc.

Inventor： Yanbei Wang ,  Houze Xu

IPC: H04L67/1097 ,  H04L67/1023 ,  H04L67/141

CPC classification number: H04L67/1097 ,  H04L67/1023 ,  H04L67/141

Abstract: According to one embodiment, a computer implemented method comprises providing multiple channels between a first storage node and a second storage node with each channel having a separate network connection for packets of a transport layer session, assigning packets from each channel to a group of receive queues of the second storage node, continuously monitoring whether two or more channels of the multiple channels share a same receive queue of the second storage node, and sending a communication via a channel to the first storage node to indicate a dynamic change in a hash input field (e.g., a source port, a destination port, a source internet protocol (IP) address, and a destination IP address) when two or more channels of the multiple channels share a same receive queue of the second storage node.

公开(公告)号：US20230089012A1

公开(公告)日：2023-03-23

申请号：US18071364

申请日：2022-11-29

Applicant: NETAPP, INC.

Inventor： Houze Xu ,  Yuepeng Qi

IPC: H04L43/0829 ,  H04L47/50 ,  H04L47/36 ,  H04L43/0823

Abstract: Methods and systems for a networked storage environment are provided. One method includes splitting, by a first node, a payload into a plurality of data packets, each data packet having a portion of the payload indicated by an offset value indicating a position of each portion within the payload; transmitting, by the first node, the plurality of data packets to a second node using a network connection for a transaction, each data packet including a header generated by the first node having the offset value and a payload size; receiving, by the first node, a message from the second node indicating an offset value of a missing payload of a missing data packet from among the plurality of data packets; and resending, by the first node, the missing data packet and any other data packet whose offset value occurs after the offset value of the missing payload.

公开(公告)号：US20220404980A1

公开(公告)日：2022-12-22

申请号：US17692531

申请日：2022-03-11

Applicant: NetApp, Inc.

Inventor： Peter Brown ,  Houze Xu ,  Bipin Tomar ,  Joseph Brown, JR.

IPC: G06F3/06 ,  G06F15/173

Abstract: Systems and methods are described for a cross-site high availability distributed storage system. According to one embodiment, a computer implemented method includes providing a remote direct memory access (RDMA) request for a RDMA stream, and generating, with an interconnect (IC) layer of the first storage node, multiple IC channels and associated IC requests for the RDMA request. The method further includes mapping an IC channel to a group of multiple transport layer sessions to split data traffic of the IC channel into multiple packets for the group of multiple transport layer sessions using an IC transport layer of the first storage node and assigning, with the IC transport layer, a unique transaction identification (ID) to each IC request and assigning a different data offset to each packet of a transport layer session.