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ESXi5 Host Isolation

Discussion in 'VMware Certifications' started by craigie, Jun 15, 2012.

  1. craigie

    craigie Terabyte Poster

    What is a 'host isolation'?

    It's the term that VMware use to define when an ESXi host is no longer able to communicate with specific IP address's and therefore it is deemed to be isolated fro the rest of the cluster.

    By default the ESXi hosts default gateway (the VMkernal gateway) is used. Depending on your infrastructure this is normally a Layer 3 switch, router or firewall.

    Whats the problem with that you ask? Well what happens if you have an outage of your Layer 3 switch, firewall or router? Well vCentre will think that your ESXi hosts are isolated and depending on your 'host isolation response' perform one of the following actions Read More Here
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