公开(公告)号：US20180357140A1

公开(公告)日：2018-12-13

申请号：US15621130

申请日：2017-06-13

Applicant: VMware, Inc.

Inventor： Enning XIANG ,  Xu YIQI

IPC: G06F11/20 ,  G06F11/16 ,  G06F11/10

Abstract: Techniques are disclosed for resynchronizing a node of a distributed storage system with other nodes of the distributed storage system. Some embodiments presented herein include a computer-implemented method for resynchronizing a node of a distributed storage system with other nodes of the distributed storage system. The method comprises identifying an out-of-sync block of the node. The method further comprises determining that the out-of-sync block is a code block, wherein the code block is generated by performing an erasure coding operation on data blocks which are stored in the other nodes. The method further comprises locating a mirrored code block in an address space maintained for mirrored code blocks. The method further comprises storing contents of the mirrored code block in a storage location of the out-of-sync block.

公开(公告)号：US20180343019A1

公开(公告)日：2018-11-29

申请号：US15604459

申请日：2017-05-24

Applicant: VMware, Inc.

Inventor： Enning XIANG ,  Yiqi XU

IPC: H03M13/15 ,  G06F11/10

CPC classification number: H03M13/154 ,  G06F11/1076 ,  H03M13/1515

Abstract: Certain embodiments described herein are generally directed to generating an updated version of an existing code block in response to a data update to an existing data block of a plurality of data blocks in a distributed multi-mirror erasure coding system. For example, in some embodiments, a first operation cost to generate the updated version of the existing code block by a first method based on the plurality of data blocks and the data update is determined. In certain embodiments, a second operation cost to generate the updated version of the existing code block by a second method based on the existing code block, the existing data block, and the data update is determined. In some embodiments, if the first operation cost is less than or equal to the second operation cost, the first method is used. Otherwise, the second method is used.

公开(公告)号：US20140344809A1

公开(公告)日：2014-11-20

申请号：US14275904

申请日：2014-05-13

Applicant: VMware, Inc.

Inventor： Zhao JIN ,  Enning XIANG ,  Ping CHEN ,  Jiajun WANG ,  Yuanzhi WANG

IPC: G06F9/455 ,  G06F17/30

CPC classification number: G06F9/455 ,  G06F9/44536 ,  G06F9/45533 ,  G06F9/45558 ,  G06F9/50 ,  G06F9/5005 ,  G06F9/5011 ,  G06F9/5027 ,  G06F9/5061 ,  G06F9/5072 ,  G06F9/5083 ,  G06F9/5088 ,  G06F9/542 ,  G06F17/30312 ,  G06F2009/45562 ,  G06F2009/4557 ,  G06F2009/45575 ,  H04L67/2823 ,  H04L67/2895 ,  H04W4/18

Abstract: An example method is provided to perform policy-based data placement in a virtualized computing environment. The method may comprise receiving a request to create a virtual disk for a virtual machine in the virtualized computing environment. The request may include a usage type associated with the virtual disk. The method may further comprise, based on a data placement policy associated with the usage type, determining a datastore on which to place the virtual disk and to store data of the usage type associated with the virtual disk.

Abstract translation: 提供了一种示例方法来在虚拟化计算环境中执行基于策略的数据放置。 该方法可以包括在虚拟化计算环境中接收为虚拟机创建虚拟磁盘的请求。 请求可以包括与虚拟磁盘相关联的使用类型。 该方法还可以基于与使用类型相关联的数据放置策略，确定在其上放置虚拟磁盘并存储与虚拟磁盘相关联的使用类型的数据的数据存储。