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shayne_niu
Contributor
Contributor

very interesting problem on VUM caue esxi host HA


Hello all guys,

I encountered a very interesting problem here ,I should let u all know , to see if you can help investigate ,

I was upgrade Esxi host from 5.1 U1 to 5.1 U2 build 174xxx .

I attached baseline group to cluster .(20 more hosts).

then scan whole cluster while all cluster were running well .

I found it's was quite slow while scanning . so , I canceled scanning .

now I got some tasks on vsphere client.

1. scanning  cluster ....cancelling..

2. cancel scanning  ....xx% ,

3.host 01xx upgraded complete .

to see event of host 01xx, I saw a vm on this host was restarted on other host by HA, also have a HA event.

this happened on 3 hosts , and 4 vms were restarted by HA , so I disable HA immediately , then nothing happened.

I want to know , if scan and cancel scan can cause host HA ?

AND WHY THIS HAPPENED.?

Scan should be a very safe action.  why it caused VM restarted.

VMware support can't give me a suitable reason.

my cluster enabled HA, admission control , DRS , but no vm monitoring ..

Did anyone of you encounter this ? I need to know WHY!

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