公开(公告)号：US20210326049A1

公开(公告)日：2021-10-21

申请号：US16853623

申请日：2020-04-20

Applicant: VMware, Inc.

Inventor： Ye ZHANG ,  Wenguang WANG ,  Sriram PATIL ,  Richard P. SPILLANE ,  Junlong GAO ,  Wangping HE ,  Zhaohui GUO ,  Yang YANG

IPC: G06F3/06 ,  G06F8/658

Abstract: System and method for writing updated versions of a configuration data file for a distributed file system in a storage system uses a directory renaming operation to write a new updated version of the configuration data file using the latest version of the configuration data file and a target directory. After the latest version of the configuration data file is modified by a particular host computer in the storage system, the modified configuration data file is written to a temporary file. The directory naming operation is then initiated on the temporary file to change the directory for the temporary file to the target directory. If the directory renaming operation has failed, a retry is performed by the particular host computer to write the new updated version of the configuration data file using a new latest version and a new target directory.

公开(公告)号：US20210334178A1

公开(公告)日：2021-10-28

申请号：US16859944

申请日：2020-04-27

Applicant: VMware, Inc.

Inventor： Yang YANG ,  Ye ZHANG ,  Xiang YU ,  Wenguang WANG ,  Richard P. SPILLANE ,  Sriram PATIL

IPC: G06F11/20 ,  G06F11/30 ,  G06F11/34 ,  G06F16/17 ,  G06F9/455

Abstract: System and method for automatic remediation for a distributed file system uses a file system (FS) remediation module running in a cluster management server and FS remediation agents running in a cluster of host computers. The FS remediation module monitors the cluster of host computers for related events. When a first file system service (FSS)-impacting event is detected, a cluster-level remediation action is executed at the cluster management server by the FS remediation module in response to the detected first FSS-impacting event. When a second FSS-impacting event is detected, a host-level remediation action is executed at one or more of the host computers in the cluster by the FS remediation agents in response to the detected second FSS-impacting event.

公开(公告)号：US20230021195A1

公开(公告)日：2023-01-19

申请号：US17467292

申请日：2021-09-06

Applicant: VMware, Inc.

Inventor： Yang YANG ,  Ye ZHANG ,  Wenguang WANG ,  Haifeng LI

IPC: G06F11/20 ,  G06F16/182

Abstract: The location of resources for file services are located within the same site, thereby eliminating or reducing performance issues caused by cross-site accesses in a stretched cluster environment. A file server placement algorithm initially places file servers at a site based at least in part on host workload and affinity settings, and can perform failover to move the file servers to a different location (e.g., to a different host on the same site or to another site) in the event of a failure of the host where the file servers were initially placed. File servers may be co-located with clients at a location based on client latencies and site workload. Failover support is also provided in the event that the sites in the stretched cluster have different subnet addresses.

公开(公告)号：US20220308759A1

公开(公告)日：2022-09-29

申请号：US17212125

申请日：2021-03-25

Applicant: VMware, Inc.

Inventor： Xiaoou ZHAO ,  Peng DAI ,  Ye ZHANG ,  Gourav Kumar SAKARGAYAN ,  Asit DESAI ,  Varun SHAH ,  Wangping HE

IPC: G06F3/06

Abstract: A method for dynamic storage object configuration in a datacenter is provided. Embodiments include determining a number of fault domains in a storage cluster that have sufficient storage capacity for creating a storage object. Embodiments include applying a dynamic fault tolerance policy to the number of fault domains that have sufficient capacity for creating the storage object in order to determine a number of host failures to tolerate for the storage object, the dynamic fault tolerance policy specifying a manner of determining, for any respective storage object, a respective number of host failures to tolerate for storing the respective storage object in a respective storage cluster based on at least a respective number of fault domains of the respective storage cluster. Embodiments include implementing the storage object on the storage cluster based on the number of host failures to tolerate for the storage object.