PKKR
Contributor
Contributor

Host Isolation response

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Hi,

May I know what is "Host Isolation response".

Thanks,

Prashant

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a_p_
Leadership
Leadership

In short: ESXi hosts running in a HA cluster communicate with each other sending heartbeats. If a host does not receive any heartbeats from other hosts anymore and also cannot each the isolation address it triggers isolation response.

For details about HA please take a look at http://www.yellow-bricks.com/vmware-high-availability-deepdiv/

André

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a_p_
Leadership
Leadership

In short: ESXi hosts running in a HA cluster communicate with each other sending heartbeats. If a host does not receive any heartbeats from other hosts anymore and also cannot each the isolation address it triggers isolation response.

For details about HA please take a look at http://www.yellow-bricks.com/vmware-high-availability-deepdiv/

André

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vMario156
Expert
Expert

With this setting you can define what your ESXi should do with the running VMs (for example shut down), if its detects that its got isolated from the network (other ESXi hosts, gateway etc.).

Take a look at this article Duncan posted some days ago: http://www.yellow-bricks.com/2012/05/31/which-isolation-response-should-i-use/

Regards,

Mario

Blog: http://vKnowledge.net
PKKR
Contributor
Contributor

Where can we see the settings., like 'shut down', 'power off'.,

Thanks,

Prashant

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vMario156
Expert
Expert

Below your Cluster Settings: Virtual Machine Options

Regards,

Mario

Blog: http://vKnowledge.net
BharatR
Hot Shot
Hot Shot

Hi,

May I know what is "Host Isolation response".

Here are the Helpful Articles about the Host Isolation Response.

Understanding High Availability Host Isolation Response with Network Attached Storage

http://kb.vmware.com/selfservice/microsites/microsite.do?cmd=displayKC&docType=kc&externalId=1018325...

VMware High Availability host isolation response types

http://kb.vmware.com/kb/1030320

Setting Multiple Isolation Response Addresses for VMware High Availability

http://kb.vmware.com/kb/1002117

Best regards, BharatR--VCP4-Certification #: 79230, If you find this information useful, please award points for "correct" or "helpful".
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HannaL
Enthusiast
Enthusiast

highlight the cluster in your vCenter inventory (icon with 3 servers) then click on Edit Settings to see the options.  Then select Virtual Machine Options under HA settings.  Most customers I work with prefer to leave their VM's powered on to give them a fighting chance in case there is a bug that triggered a false positive network isolation they don't want all their VM's powering off.  Also see that you can chance this value for each individual VM.  There is a pull down option you get if you click on "Use Cluster setting" where you can change the response per VM if you want.

2057301.png

Hope that helps, Hanna --- BSCS, VCP2, VCP VI3, VCP vSphere, VCP 5 https://www.ibm.com/developerworks/mydeveloperworks/blogs/vmware-support-ibm
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