公开(公告)号：US20230221977A1

公开(公告)日：2023-07-13

申请号：US17574453

申请日：2022-01-12

Applicant: VMware, Inc.

Inventor： Alexander Krits ,  Pavan Narasimhaprasad ,  Li Zheng ,  Ali Reza Alibhai ,  Arunachalam Ramanathan ,  Sampath Kumar Kilaparthi ,  Nathan Lyle Prziborowski

IPC: G06F9/455

CPC classification number: G06F9/45558 ,  G06F2009/45595 ,  G06F2009/45562

Abstract: In one set of embodiments, during an initial pre-copying phase, copies of the virtual disks of a VM or VM template can be distributed across one or more datastores, prior to the start of any cloning. This effectively seeds each datastore with a disk pool comprising a certain number of copies of the VM/VM template's virtual disks. Then, at the time of receiving a user request to create k clones from the VM/VM template, up to k copies of the VM/VM template's virtual disks that already reside in the disk pools of one or more target datastores can be moved from those disk pools to the clones' home folders on the target datastores, thereby reducing or eliminating the need to create brand new copies of the virtual disks on demand.

公开(公告)号：US20170052812A1

公开(公告)日：2017-02-23

申请号：US15343454

申请日：2016-11-04

Applicant: VMware, Inc.

Inventor： Gabriel Tarasuk-Levin ,  Jayanth Gummaraju ,  Hui Li ,  Li Zheng

IPC: G06F9/455 ,  G06F3/06 ,  G06F9/44

CPC classification number: G06F9/45558 ,  G06F3/0604 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/0664 ,  G06F3/0665 ,  G06F3/0683 ,  G06F3/0689 ,  G06F9/4401 ,  G06F2009/45562 ,  G06F2009/4557 ,  G06F2009/45579 ,  G06F2009/45583

Abstract: Techniques for handling inheritance of disk state when forking virtual machines (VMs) are provided. In one embodiment, a computer system can receive a request to fork a child VM from a parent VM. In response, the computer system can take a disk snapshot of the parent VM, where the disk snapshot results in a child disk for the child VM, where the child disk is a delta disk that points to a parent disk of the parent VM, and where the parent disk serves as the parent VM's current running point. The computer system can then determine whether the parent disk is a delta disk. If so, the computer system can copy the content of the parent disk to the child disk, traverse a disk hierarchy associated with the parent disk to identify a base disk above the parent disk in the hierarchy, and cause the child disk to point directly to the base disk.

Abstract translation: 提供虚拟机（VM）时处理磁盘状态继承的技术。 在一个实施例中，计算机系统可以接收从父虚拟机分派子VM的请求。 作为响应，计算机系统可以获取父虚拟机的磁盘快照，其中磁盘快照导致子虚拟机的子磁盘，其中子磁盘是指向父虚拟机的父磁盘的增量磁盘，以及 父磁盘用作父虚拟机的当前运行点。 然后，计算机系统可以确定父磁盘是否是增量磁盘。 如果是这样，计算机系统可以将父磁盘的内容复制到子磁盘，遍历与父磁盘相关联的磁盘层次结构，以标识层次结构中父磁盘上方的基本磁盘，并使子磁盘直接指向 基盘。

公开(公告)号：US11625257B2

公开(公告)日：2023-04-11

申请号：US15197552

申请日：2016-06-29

Applicant: VMware, Inc.

Inventor： Arunachalam Ramanathan ,  Li Zheng ,  Gabriel Tarasuk-Levin

IPC: G06F9/455

Abstract: A managed object of a virtualized computing environment, which contains the runtime state of a parent virtual machine (VM) and can be placed in any host of the virtualized computing environment, is used for instantly cloning child VMs off that managed object. The managed object is not an executable object (i.e., the state of the managed object is static) and thus it does not require most of the overhead memory associated with a VM. As a result, this managed object can support instant cloning of VMs with a reduction in memory, storage, and CPU overhead relative to when a parent template VM is used.

公开(公告)号：US10956041B2

公开(公告)日：2021-03-23

申请号：US14528276

申请日：2014-10-30

Applicant: VMware, Inc.

Inventor： Nishant Yadav ,  Jesse Pool ,  Li Zheng ,  Gabriel Tarasuk-Levin ,  Nick Michael Ryan

IPC: G06F3/06

Abstract: To create a backup of a live (running) virtual machine, a backup agent may take a snapshot of the virtual machine, backup the virtual machine from the snapshot disk, and delete the snapshot. Deleting the snapshot initiates a snapshot consolidation process where delta disks of the virtual machine are collapsed. A virtual disk layer sets up a mirror driver between a current virtual disk and a target virtual disk. Data sectors of the delta disk are copied over to the target virtual disk in a single pass, while the mirror driver mirrors write request for the current virtual disk to the target virtual disk.

公开(公告)号：US09996383B2

公开(公告)日：2018-06-12

申请号：US15343454

申请日：2016-11-04

Applicant: VMware, Inc.

Inventor： Gabriel Tarasuk-Levin ,  Jayanth Gummaraju ,  Hui Li ,  Li Zheng

IPC: G06F9/455 ,  G06F3/06 ,  G06F9/44

CPC classification number: G06F9/45558 ,  G06F3/0604 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/0664 ,  G06F3/0665 ,  G06F3/0683 ,  G06F3/0689 ,  G06F9/4401 ,  G06F2009/45562 ,  G06F2009/4557 ,  G06F2009/45579 ,  G06F2009/45583

Abstract: Techniques for handling inheritance of disk state when forking virtual machines (VMs) are provided. In one embodiment, a computer system can receive a request to fork a child VM from a parent VM. In response, the computer system can take a disk snapshot of the parent VM, where the disk snapshot results in a child disk for the child VM, where the child disk is a delta disk that points to a parent disk of the parent VM, and where the parent disk serves as the parent VM's current running point. The computer system can then determine whether the parent disk is a delta disk. If so, the computer system can copy the content of the parent disk to the child disk, traverse a disk hierarchy associated with the parent disk to identify a base disk above the parent disk in the hierarchy, and cause the child disk to point directly to the base disk.

公开(公告)号：US20180060104A1

公开(公告)日：2018-03-01

申请号：US15665742

申请日：2017-08-01

Applicant: VMware, Inc.

Inventor： Gabriel Tarasuk-Levin ,  Derek Beard ,  Li Zheng ,  Brian Forney ,  Brian Rak ,  Ali Reza Alibhai

IPC: G06F9/455 ,  G06F9/48 ,  G06F9/50

Abstract: Instructions to fork a source VM are received, and execution of the source VM is temporarily stunned. A destination VM is created, and a snapshot of a first virtual disk of the source VM is created. A checkpoint state of the source VM is transferred to the destination VM. The source VM has one or more virtual disks. One or more virtual disks associated with the destination VM are created and reference the one or more virtual disks of the source VM. Execution of the destination VM is restored using the transferred checkpoint state and the virtual disks of the destination VM in a way that allows the source VM to also resume execution. Forking VMs using the described operation provisions destination VMs in a manner that makes efficient use of memory and disk space, while enabling source VMs to continue execution after completion of the fork operation.

公开(公告)号：US20160170788A1

公开(公告)日：2016-06-16

申请号：US14570336

申请日：2014-12-15

Applicant: VMware, Inc.

Inventor： Gabriel Tarasuk-Levin ,  Jayanth Gummaraju ,  Hui Li ,  Li Zheng

IPC: G06F9/455 ,  G06F3/06

CPC classification number: G06F9/45558 ,  G06F3/0604 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/0664 ,  G06F3/0665 ,  G06F3/0683 ,  G06F3/0689 ,  G06F9/4401 ,  G06F2009/45562 ,  G06F2009/4557 ,  G06F2009/45579 ,  G06F2009/45583

Abstract: Techniques for handling inheritance of disk state when forking virtual machines (VMs) are provided. In one embodiment, a computer system can receive a request to fork a child VM from a parent VM. In response, the computer system can take a disk snapshot of the parent VM, where the disk snapshot results in a child disk for the child VM, where the child disk is a delta disk that points to a parent disk of the parent VM, and where the parent disk serves as the parent VM's current running point. The computer system can then determine whether the parent disk is a delta disk. If so, the computer system can copy the content of the parent disk to the child disk, traverse a disk hierarchy associated with the parent disk to identify a base disk above the parent disk in the hierarchy, and cause the child disk to point directly to the base disk.

Abstract translation: 提供虚拟机（VM）时处理磁盘状态继承的技术。 在一个实施例中，计算机系统可以接收从父虚拟机分派子VM的请求。 作为响应，计算机系统可以获取父虚拟机的磁盘快照，其中磁盘快照导致子虚拟机的子磁盘，其中子磁盘是指向父虚拟机的父磁盘的增量磁盘，以及 父磁盘用作父虚拟机的当前运行点。 然后，计算机系统可以确定父磁盘是否是增量磁盘。 如果是这样，计算机系统可以将父磁盘的内容复制到子磁盘，遍历与父磁盘相关联的磁盘层次结构，以标识层次结构中父磁盘上方的基本磁盘，并使子磁盘直接指向 基础磁盘。

公开(公告)号：US20230229471A1

公开(公告)日：2023-07-20

申请号：US17576824

申请日：2022-01-14

Applicant: VMware, Inc.

Inventor： Arunachalam Ramanathan ,  Bhavana Raj Kanthur Murnad ,  Jeffrey W Sheldon ,  Pavan Narasimhaprasad ,  Li Zheng ,  Oleg Zaydman ,  Anupama Chandwani ,  Derek William Beard

IPC: G06F9/455

CPC classification number: G06F9/45558 ,  G06F2009/4557

Abstract: Techniques for implementing application-assisted VM provisioning operations, and in particular application-assisted live migration, are provided. In one set of embodiments, a hypervisor of a source host system can notify a guest application that the VM within which the guest application runs will be imminently live migrated from the source host system to a destination host system, prior to actually carrying out the live migration. In response, the guest application can execute one or more remedial actions that mitigate or avoid issues which may arise with respect to its runtime operation when the VM is stunned and switched over to the destination host system.

公开(公告)号：US09507623B2

公开(公告)日：2016-11-29

申请号：US14570336

申请日：2014-12-15

Applicant: VMware, Inc.

Inventor： Gabriel Tarasuk-Levin ,  Jayanth Gummaraju ,  Hui Li ,  Li Zheng

IPC: G06F9/455 ,  G06F3/06

CPC classification number: G06F9/45558 ,  G06F3/0604 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/0664 ,  G06F3/0665 ,  G06F3/0683 ,  G06F3/0689 ,  G06F9/4401 ,  G06F2009/45562 ,  G06F2009/4557 ,  G06F2009/45579 ,  G06F2009/45583

Abstract: Techniques for handling inheritance of disk state when forking virtual machines (VMs) are provided. In one embodiment, a computer system can receive a request to fork a child VM from a parent VM. In response, the computer system can take a disk snapshot of the parent VM, where the disk snapshot results in a child disk for the child VM, where the child disk is a delta disk that points to a parent disk of the parent VM, and where the parent disk serves as the parent VM's current running point. The computer system can then determine whether the parent disk is a delta disk. If so, the computer system can copy the content of the parent disk to the child disk, traverse a disk hierarchy associated with the parent disk to identify a base disk above the parent disk in the hierarchy, and cause the child disk to point directly to the base disk.

Abstract translation: 提供虚拟机（VM）时处理磁盘状态继承的技术。 在一个实施例中，计算机系统可以接收从父虚拟机分派子VM的请求。 作为响应，计算机系统可以获取父虚拟机的磁盘快照，其中磁盘快照导致子虚拟机的子磁盘，其中子磁盘是指向父虚拟机的父磁盘的增量磁盘，以及 父磁盘用作父虚拟机的当前运行点。 然后，计算机系统可以确定父磁盘是否是增量磁盘。 如果是这样，计算机系统可以将父磁盘的内容复制到子磁盘，遍历与父磁盘相关联的磁盘层次结构，以标识层次结构中父磁盘上方的基本磁盘，并使子磁盘直接指向 基盘。

公开(公告)号：US09037621B2

公开(公告)日：2015-05-19

申请号：US13934127

申请日：2013-07-02

Applicant: VMware, Inc.

Inventor： Gregory Hutchins ,  Steven Michael Kusalo ,  Haripriya Rajagopal ,  Jairam Ranganathan ,  Li Zheng

IPC: G06F17/30 ,  G06F9/455

CPC classification number: G06F9/455 ,  G06F17/30115

Abstract: A method and software is described for recreating on a target datastore a set of hierarchical files that are present on a source datastore. A content identifier (ID) is maintained for each component of the set of hierarchical files. The content ID of a component is updated when its contents are modified. The child component is copied from the source datastore to the target datastore. The content ID corresponding to the parent component on the source datastore is compared with content IDs corresponding to files present on the target datastore. When a matching content ID is discovered, it infers a copy of the parent component. The matching file on the target datastore is associated with the copied child component so that the matching file becomes a new parent component to the copied child component, thereby recreating the set of hierarchical files on the target.

Abstract translation: 描述了一种方法和软件，用于在目标数据存储上重新创建存在于源数据存储上的一组分层文件。 为分层文件集合中的每个组件维护内容标识符（ID）。 当其内容被修改时，组件的内容ID被更新。 子组件从源数据存储复制到目标数据存储。 将与源数据存储上的父组件相对应的内容ID与对应于目标数据存储上存在的文件的内容ID进行比较。 当发现匹配的内容ID时，它会推断父组件的副本。 目标数据存储区上的匹配文件与复制的子组件相关联，以便匹配文件成为复制的子组件的新父组件，从而在目标上重新创建一组分层文件。