公开(公告)号：US20230205649A1

公开(公告)日：2023-06-29

申请号：US18175450

申请日：2023-02-27

Applicant: VMware, Inc.

Inventor： Andreas Nowatzyk ,  Pratap Subrahmanyam ,  Isam Akkawi

IPC: G06F11/14 ,  G06F12/0815 ,  G06F11/07 ,  G06F9/30 ,  G06F9/46 ,  G06F15/173

CPC classification number: G06F11/1469 ,  G06F11/1464 ,  G06F11/1451 ,  G06F12/0815 ,  G06F11/0757 ,  G06F9/30043 ,  G06F9/467 ,  G06F11/0772 ,  G06F15/1735 ,  G06F2212/2542

Abstract: Techniques for implementing hardware-assisted memory disaggregation with recovery from network failures/problems are provided. In one set of embodiments, a hardware controller of a computer system can maintain a copy of a “remote memory” of the computer system (i.e., a section of the physical memory address space of the computer system that maps to a portion of the physical system memory of a remote computer system) in a local backup memory. The backup memory may be implemented using a non-volatile memory that is slower, but also less expensive, than conventional dynamic random-access memory (DRAM). Then, if the hardware controller is unable to retrieve data in the remote memory from the remote computer system within a specified time window due to, e.g., a network failure or other problem, the hardware controller can retrieve the data from the backup memory, thereby avoiding a hardware error condition (and potential application/system crash).

公开(公告)号：US11620192B2

公开(公告)日：2023-04-04

申请号：US16926520

申请日：2020-07-10

Applicant: VMware, Inc.

Inventor： Andreas Nowatzyk ,  Pratap Subrahmanyam ,  Isam Akkawi

IPC: G06F12/0815 ,  G06F15/173 ,  G06F11/14 ,  G06F11/07 ,  G06F9/30 ,  G06F9/46

Abstract: Techniques for implementing hardware-assisted memory disaggregation with recovery from network failures/problems are provided. In one set of embodiments, a hardware controller of a computer system can maintain a copy of a “remote memory” of the computer system (i.e., a section of the physical memory address space of the computer system that maps to a portion of the physical system memory of a remote computer system) in a local backup memory. The backup memory may be implemented using a non-volatile memory that is slower, but also less expensive, than conventional dynamic random-access memory (DRAM). Then, if the hardware controller is unable to retrieve data in the remote memory from the remote computer system within a specified time window due to, e.g., a network failure or other problem, the hardware controller can retrieve the data from the backup memory, thereby avoiding a hardware error condition (and potential application/system crash).

公开(公告)号：US20220012139A1

公开(公告)日：2022-01-13

申请号：US16926520

申请日：2020-07-10

Applicant: VMware, Inc.

Inventor： Andreas Nowatzyk ,  Pratap Subrahmanyam ,  Isam Akkawi

IPC: G06F11/14 ,  G06F11/07 ,  G06F9/30 ,  G06F9/46 ,  G06F12/0815

Abstract: Techniques for implementing hardware-assisted memory disaggregation with recovery from network failures/problems are provided. In one set of embodiments, a hardware controller of a computer system can maintain a copy of a “remote memory” of the computer system (i.e., a section of the physical memory address space of the computer system that maps to a portion of the physical system memory of a remote computer system) in a local backup memory. The backup memory may be implemented using a non-volatile memory that is slower, but also less expensive, than conventional dynamic random-access memory (DRAM). Then, if the hardware controller is unable to retrieve data in the remote memory from the remote computer system within a specified time window due to, e.g., a network failure or other problem, the hardware controller can retrieve the data from the backup memory, thereby avoiding a hardware error condition (and potential application/system crash).