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vSphere High Performance Essentials by Christian Stankowic

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Optimizing NFS resources

NFS is often chosen as the cost-effective alternative to SAN concepts. Due to the technologies such as affordable 10-GbE networks and Jumbo Frames, NFS can reach I/O throughputs that are comparable to SAN setups or they are even better at a lower price. To ensure high performance, we will focus on configuring Jumbo Frames along with NFS.

Jumbo frames

When accessing storage resources served by NFS resources, the typical Ethernet package limitations are given. By default, Ethernet uses a Maximum Transmission Unit (MTU) of 1,500 bytes. In other words, an Ethernet package can contain up to 1,500 bytes of payload. For modern high-speed networks, such as 10 GbE or higher, this is not suitable. Using the default MTU on an Ethernet ...

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