Remote direct memory access (RDMA)-based recovery of dirty data in remote memory

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11720457
APP PUB NO 20220365855A1
SERIAL NO

17876395

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Abstract

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Techniques for implementing RDMA-based recovery of dirty data in remote memory are provided. In one set of embodiments, upon occurrence of a failure at a first (i.e., source) host system, a second (i.e., failover) host system can allocate a new memory region corresponding to a memory region of the source host system and retrieve a baseline copy of the memory region from a storage backend shared by the source and failover host systems. The failover host system can further populate the new memory region with the baseline copy and retrieve one or more dirty page lists for the memory region from the source host system via RDMA, where the one or more dirty page lists identify memory pages in the memory region that include data updates not present in the baseline copy. For each memory page identified in the one or more dirty page lists, the failover host system can then copy the content of that memory page from the memory region of the source host system to the new memory region via RDMA.

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Patent Owner(s)

  • VMWARE, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dikshit, Kiran Banglore, IN 3 0
Kumar, Keerthi Bangalore, IN 14 5
Sadashiv, Halesh Bangalore, IN 6 1
Tati, Kiran Fremont, US 39 405
Veeraswamy, Sairam Coimbatore, IN 68 1286
Venkatasubramanian, Rajesh San Jose, US 87 771

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