公开(公告)号：US11604712B2

公开(公告)日：2023-03-14

申请号：US17284482

申请日：2018-11-16

Applicant: VMware, Inc.

Inventor： Zhaohui Guo ,  Yang Yang ,  Haitao Zhou ,  Jian Zhao ,  Zhou Huang ,  Jin Feng

IPC: G06F11/20 ,  G06F9/455 ,  G06F11/14 ,  G06F11/16 ,  G06F13/42 ,  G06F3/06

Abstract: A method is provided for a hyper-converged storage-compute system to implement an active-active failover architecture for providing Internet Small Computer System Interface (iSCSI) target service. The method intelligently selects multiple hosts to become storage nodes that process iSCSI input/output (I/O) for a target. The method further enables iSCSI persistent reservation (PR) to handle iSCSI I/Os from multiple initiators.

公开(公告)号：US10783045B2

公开(公告)日：2020-09-22

申请号：US16849947

申请日：2020-04-15

Applicant: VMware, Inc.

Inventor： Zhaohui Guo ,  Yang Yang ,  Haitao Zhou ,  Jian Zhao ,  Zhou Huang ,  Jin Feng

IPC: G06F11/20 ,  G06F13/42 ,  G06F9/455 ,  G06F11/14 ,  G06F11/16

Abstract: A method is provided for a hyper-converged storage-compute system to implement an active-active failover architecture for providing Internet Small Computer System Interface (iSCSI) target service. The method intelligently selects multiple hosts to become storage nodes that process iSCSI input/output (I/O) for a target. The method further enables iSCSI persistent reservation (PR) to handle iSCSI I/Os from multiple initiators.

公开(公告)号：US11379405B2

公开(公告)日：2022-07-05

申请号：US16656499

申请日：2019-10-17

Applicant: VMware, Inc.

Inventor： Yang Yang ,  Haitao Zhou ,  Zhaohui Guo ,  Jian Zhao ,  Zhou Huang ,  Jin Feng

IPC: G06F15/173 ,  G06F13/16 ,  H04L49/901 ,  H04L67/1097 ,  H04L69/22 ,  G06F13/42

Abstract: Certain Embodiments described herein relate to configuring the network-storage stack of two devices (e.g., physical or virtual) communicating together (e.g., an initiator and a target, as defined below) with Internet Small Computer Systems Interface (iSCSI) extension for remote direct memory access (RDMA) iSER, which is a protocol designed to utilize RDMA to accelerate iSCSI data transfer. The iSER protocol is implemented as an iSER datamover layer that acts as an interface between an iSCSI layer and an RDMA layer of the network-storage stacks of the two devices. Using iSER in conjunction with RDMA allows for bypassing the existing traditional network protocol layers (e.g., TCP/IP protocol layers) of the devices and permits data to be transferred directly, between the two devices, using certain memory buffers, thereby avoiding memory copies taking place when the existing network protocol layers are used.

公开(公告)号：US11507409B2

公开(公告)日：2022-11-22

申请号：US16820735

申请日：2020-03-17

Applicant: VMware, Inc.

Inventor： Haitao Zhou ,  Yang Yang ,  Zhaohui Guo ,  Jian Zhao ,  Zhou Huang ,  Jin Feng

IPC: G06F9/455 ,  G06F3/06 ,  G06F13/42

Abstract: One example method to perform object-based load balancing in a distributed storage system of a virtualization system supported by a cluster of host machines may include determining, by a first host machine in the cluster, whether any host machine in the cluster has affinity to a site. The method may also include determining, by the first host machine, whether to distribute affinity Internet small computer system interface (iSCSI) targets owned by the first host machine to at least the second machine based on a first balance objective associated with the site, and after having considered the first balance objective, determining, by the first host machine, whether to distribute iSCSI targets without affinity owned by the first host machine to other host machines in the cluster based on a second balance objective associated with the cluster.

公开(公告)号：US12067430B2

公开(公告)日：2024-08-20

申请号：US17468701

申请日：2021-09-08

Applicant: VMware, Inc.

Inventor： Jiushi Wan ,  Jin Feng ,  Zhou Huang ,  Jian Zhao ,  Yang Yang

IPC: G06F3/00 ,  G06F9/50 ,  G06F9/54

CPC classification number: G06F9/542 ,  G06F9/5005

Abstract: An adaptive idle detection method determines whether software defined data centers (SDDCs) in a hyperconverged infrastructure (HCI) environment are idle. Idleness may be quantified via a coefficient of variation (CV) against resource usage, so as to adapt the idle detection method to SDDCs with different hardware specifications and workloads. Management overhead may also be filtered out by the idle detection method, and the idle detection method may use idleness scores to further reduce overhead.

公开(公告)号：US11500667B2

公开(公告)日：2022-11-15

申请号：US16820732

申请日：2020-03-17

Applicant: VMware, Inc.

Inventor： Haitao Zhou ,  Yang Yang ,  Zhaohui Guo ,  Jian Zhao ,  Zhou Huang ,  Jin Feng

IPC: G06F9/455 ,  G06F9/46 ,  H04L67/1097 ,  H04L61/5007

Abstract: One example method to support Internet small computer system interface (iSCSI) services in a distributed storage system of a virtualization system may include receiving a notification of a change event associated with a global virtual Internet Protocol (VIP) object, wherein the global VIP object is associated with a virtual IP address for the iSCSI services. The method may also include in response to a first determination that the first host machine does not own the global VIP object and in response to a second determination that the first host machine gains ownership of the global VIP object based on the notification, locking the global VIP object and binding the virtual IP address to the first host machine.

公开(公告)号：US11176053B2

公开(公告)日：2021-11-16

申请号：US16653548

申请日：2019-10-15

Applicant: VMware, Inc.

Inventor： Yang Yang ,  Zhaohui Guo ,  Haitao Zhou ,  Zhou Huang ,  Jian Zhao ,  Jin Feng

IPC: G06F12/10 ,  G06F13/16

Abstract: The disclosure herein describes enabling use of a logical unit for data storage in a distributed storage system using a plurality of backend data objects. Based on receiving instructions to create a logical unit of a logical unit size, a target backend object size to be used with the logical unit is determined, and a plurality of backend objects for allocation to the logical unit is calculated. The backend objects are allocated to the logical unit and a metadata mapping associated with the logical unit is generated. The metadata mapping associates logical block addresses of the logical unit to the allocated backend objects. The logical unit is linked with the metadata mapping in an input/output (I/O) service and, based on the linked metadata mapping, I/O traffic is routed to and from the logical unit. Using multiple backend objects enhances flexibility and efficiency of data storage on the distributed storage system.