公开(公告)号：US20230367677A1

公开(公告)日：2023-11-16

申请号：US18360221

申请日：2023-07-27

Applicant: NetApp, Inc.

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

IPC: G06F11/14 ,  G06F9/4401

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

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：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：US20230273862A1

公开(公告)日：2023-08-31

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: G06F11/14 ,  G06F9/4401

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

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.