Time of VM migration when hypervisor fails

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Good day.

 

Can some one help me with this test situation:

 

I have 2 hosts for hypervisors with power management via ipmilan in one cluster and I'm using NFS storage. On this cluster I've started 1 virtual machine. For example, now it is running on first hypervisor.

 

After that in testing purpose I've crushed first hypervisor like this:

ssh root@hypervisor1

cat /dev/zero > /dev/mem

 

(But his power management module is still working).

 

After ~3 minutes RHEV Manager sad, that "Invalid status on Data Center Default. Setting Data Center status to Non-Responcive (On host hypervisor1, Error: Network error during communication with the Host.)."

 

Then after additional ~6 minutes RHEV Manager sad "Host hypervisor1 is non-responcive" and at last started migration of my VM to another hypervisor.

 

So, it's about 10 minutes before my VM come back online!

 

My question is: Is there any possibility to change some config-files for faster reaction in this situation? Can I configure my RHEV Manager to migrate VM in 20-30 seconds in this situation?

 

Thank you.

 

P.S. Sorry for bad English :(

st

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