Tutorial: How to Enable the RDMA Feature in Open-E JovianDSS?
In this video, you'll learn how to enable the RDME feature in Open-E JovianDSS data storage software.
RDMA (Remote Direct Memory Access) in Open-E JovianDSS Up29r2, we mean RDMA over converged Ethernet. Currently, it supports the connection between the nodes in non-shared storage cluster configuration only.
What is so special about RDMA?
It supports zero-copy networking, which allows applications to perform data transfers without the need to involve the network software stack.
The data is not copied between network layers and goes directly to buffers.
It involves neither kernel nor CPU (the latter comes from the DMA), which eventually leads to a smaller CPU footprint and more free space in the caching devices.
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