公开(公告)号：US09910800B1

公开(公告)日：2018-03-06

申请号：US15697802

申请日：2017-09-07

申请人： Pure Storage, Inc.

发明人： Roland Dreier ,  Yan Liu ,  Sandeep Mann

IPC分类号： G06F13/00 ,  G06F13/28 ,  G06F12/02

CPC分类号： G06F13/28 ,  G06F12/023 ,  G06F2212/254

摘要： Emulating a remote direct memory access (‘RDMA’) link between controllers in a storage array, including: inserting, into a buffer utilized by a direct memory access (‘DMA’) engine of a first storage array controller, a data transfer descriptor describing data stored in memory of the first storage array controller and a location to write the data to memory of the second storage array controller; retrieving, in dependence upon the data transfer descriptor, the data stored in memory of the first storage array controller; and writing the data into the memory of the second storage array controller in dependence upon the data transfer descriptor.

公开(公告)号：US09892071B2

公开(公告)日：2018-02-13

申请号：US14817168

申请日：2015-08-03

申请人： Pure Storage, Inc.

发明人： Roland Dreier ,  Yan Liu ,  Sandeep Mann

IPC分类号： G06F3/06 ,  G06F13/28 ,  G06F12/02

CPC分类号： G06F13/28 ,  G06F12/023 ,  G06F2212/254

摘要： Emulating a remote direct memory access (‘RDMA’) link between controllers in a storage array, including: inserting, into a buffer utilized by a direct memory access (‘DMA’) engine of a first storage array controller, a data transfer descriptor describing data stored in memory of the first storage array controller and a location to write the data to memory of the second storage array controller; retrieving, in dependence upon the data transfer descriptor, the data stored in memory of the first storage array controller; and writing the data into the memory of the second storage array controller in dependence upon the data transfer descriptor.

公开(公告)号：US11681640B2

公开(公告)日：2023-06-20

申请号：US17512032

申请日：2021-10-27

申请人： PURE STORAGE, INC.

发明人： Roland Dreier ,  Yan Liu ,  Sandeep Mann

IPC分类号： G06F13/12 ,  G06F13/28 ,  G06F12/02

CPC分类号： G06F13/28 ,  G06F12/023 ,  G06F2212/254

摘要： Enabling multi-channel communications between controllers in a storage array, including: creating a plurality of logical communications channels between two or more storage array controllers; inserting, into a buffer utilized by a direct memory access (‘DMA’) engine of a first storage array controller, a data transfer descriptor describing data stored in memory of the first storage array controller and a location to write the data to memory of a second storage array controller; retrieving, in dependence upon the data transfer descriptor, the data stored in memory of the first storage array controller; and writing, via a predetermined logical communications channel, the data into the memory of the second storage array controller in dependence upon the data transfer descriptor.

公开(公告)号：US10540307B1

公开(公告)日：2020-01-21

申请号：US15912051

申请日：2018-03-05

申请人： Pure Storage, Inc.

发明人： Roland Dreier ,  Yan Liu ,  Sandeep Mann

IPC分类号： G06F13/42 ,  G06F13/28 ,  G06F12/02

摘要： Emulating a remote direct memory access (‘RDMA’) link between controllers in a storage array, including: inserting, into a buffer utilized by a direct memory access (‘DMA’) engine of a first storage array controller, a data transfer descriptor describing data stored in memory of the first storage array controller and a location to write the data to memory of the second storage array controller; retrieving, in dependence upon the data transfer descriptor, the data stored in memory of the first storage array controller; and writing the data into the memory of the second storage array controller in dependence upon the data transfer descriptor.