VMware

New vSAN cluster networking guidance

vSAN novice here. Will be implementing a 4 node cluster very soon. Each node will have 4x 10gb nics. Have two 10gb ToR switches for the implementation. Can anyone point me to some good documentation/blogs/etc on switch configurations for this setup. Have configured switches before but only with very basic configurations.

Taking vSAN 3 day training course next week but not sure how much they get into physical switch setups.

Any help to point me in the right direction would be greatly appreciated.


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3 Comments

  1. Glossing over details, the quick answer is…

    -Dedicate a VLAN to vSAN traffic
    -Configure jumbo frames (MTU 9000) for the ToR switch, vDS, and ESXi hosts’ vSAN interface.
    -Consider using LACP to provide better availability and bandwidth utilization.
    -Avoid using Cisco FEXs (fabric extenders).
    -Consider using all four interfaces for vSAN traffic, and using NIOC to ensure vSAN (or other services) don’t consume the entire link.

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