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MOC89
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Temporarily Prevent Migration

Hello,

We have 6 hosts server and all HA is currently turned on. We have a scheduled outage planned as all the switches are going down for an hour. They are not all going down at the same time, they shall be going one after another and coming up roughly the same time after. So to VMware it will appear that the network is slowly failing, one network card after another.

I want to prevent migration betweens hosts for this, as obviously not an actual failure.  Is all I have to do go on the cluster settings and untick turn on VMware HA? Will I have to turn off DRS as well?Will there be any issues when I turn them back on. And are there any other little niggles I should be aware of for this?

If you have read so far then thank you Smiley Happy

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logiboy123
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In this type of situation I also find it good to set the host isolation response to "do not shut down", depending on how long the switch is going to be down for of course. This will prevent your guests from bouncing around like a tennis ball.

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arturka
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Hi

Disable VM host monitoring and you should be good

Cheers

VCDX77 My blog - http://vmwaremine.com
MOC89
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Hello Arthur

Thank you for your reply. I'll turn off the host monitoring. So keep HA alive and happy, but turn off the host monitoring then?

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Rubeck
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Yes, and set DRS to manual so no automatic migrations will occur over a flaky vmkernel interface.. Dont disable DRS as this will detroy your resource pools if you have such.  

/Rubeck

logiboy123
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In this type of situation I also find it good to set the host isolation response to "do not shut down", depending on how long the switch is going to be down for of course. This will prevent your guests from bouncing around like a tennis ball.

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