ESXi

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  • 1.  Host Swapped Used

    Posted Oct 10, 2016 01:06 AM

    Hi Guys,

    We have 1 host which appears to be Swapping and I would like request for your advice on the possible cause why this is happening.

    What I have checked so far is from all the VMs running under our Host; there are 2 VMs which did some swapping but I also notice 0 Ballooning.

    Base form my understanding. The host will try to swapped space as a last resort after it did some of its Memory reclamation  techniques.

    Is it possible to not do memory ballooning and go straight to swapping?

    Hope you can advice.

    ESX Host:

    VM1:

    VM2:



  • 2.  RE: Host Swapped Used

    Posted Oct 10, 2016 07:21 AM

    Hi there,

    Yes - it was my understanding as well that host level swapping was the last resort - before that there was page sharing (if enabled), ballooning and memory compression.

    Perhaps check if these VMs are running VMware Tools. If the VMware tools are installed then check that the "Balloon Driver" installed or hasn't been disabled: Disabling the balloon driver (1002586) | VMware KB

    Kind regards.