EVC on ESXi4.1 u1 throws error

[vmhyperv]

Hello Everyone,

         In a cluster i have 4 ESXi host having Hardware configurations

2 HP Proliant DL360 G6  (ESXi4.1 U2)
CPU Cores 8 CPUs x 2.4 GHz
Processor Type Intel(R) Xeon(R)CPU E5530@2.4 GHZ

2 HP Proliant DL380 G7  (ESXi4.1 U1)
CPU Cores 8 CPUsx2.665 GHz
Processor Type :- Intel(R) Xeon(R) CPU E5640 @2.67GHz

but i want to configure Enhanced VMotion compatibilty but its giving error.Does it require re-boot ? while configuring.Screenshot i have attached.Any advise will on this will be appreciated.

thanks

vmguy

[whynotq · Accepted solution]

No it's complaining that there are powered on VMs that are effectively using the advanced CPU functionality, what it is saying in essence is "you will be downgrading the CPU in the VMs" so you will need to power the VMs off first then enable EVC then power them back on and they will pick up the new CPU settings on boot.

These will be the VMs on the G7 hosts only no need to power off the ones on the G6

Paul

[Troy_Clavell]

You cannot enable EVC on a Cluster where there are running virtual machines.

[vmhyperv]

Paul,

   Yes you are right i have added recently 2 new  Host of G6 (Maintenance mode currently) in the cluster  and the vm is on G7.

thanks

vmguy

[mbaecke]

1. Create a new cluster with EVC enabled with the G6 servers. Put EVC on Nehalem.

2. Migrate VMs from old to new cluster

3. Add G7 hosts to from old to new cluster

This should help you enable EVC on the cluster. 

[vmhyperv]

Hi,

  But it will require downtime any how.Right ? (Taking down time is a concern)

thanks

vmguy

[mbaecke]

Unfortunately yes. It is possible, but it involves modifying masks manually. http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1991

Don't think that's the best way to achieve this. So yes unfortunatly a little bit of downtime.