The virtual machine requires hardware features that are unsupported or disabled on the target host: SSE 4.1, SSe 4.2

[tdubb123]

When I try to migrate a VM from one cluster to another. I am getting this error. The source cluster is on EVC nehalem. destination is on merom. I tried updating the hardware version to version 11 but the VM wont boot. any idea what to do? Will there be any issues if I bring my destination cluster to nehalem instead of merom?

[rcporto]

Since the destination cluster uses a lower EVC level, some features that you virtual machine is using is not available on the destination cluster, so the message you get is an expected message.

Anyway you can always shutdown your virtual machine on the source cluster and power on in the destination cluster. Note that upgrade your virtual hardware is not the case, since the different instructions presents on cluster are due the physical CPU instruction set and not the virtual hardware.

[tdubb123]

the VM was not able to power on in the destination cluster.

I was able to raise my EVC mode on the destination cluster to nehalem from merom. Then I was able to power on and migrate the VM

Should not affect anything right? Since that only exposes more CPU instruction sets? SSE 4.1 and 4.2

[offsidex]

EVC mode masks features and allows for uniform CPU capabilities, unless you have specific needs for a cpu feature ie VDI or security it should have no impact on your environment.

[rcporto]

What error message you're getting when trying power on the virtual machine ?

[tdubb123]

it said something about the cluster or host does not have the required SSE instructions

[rcporto]

Please, can you confirm if your virtual machine is running a 64 bit Guest OS, the exact name/model of the CPU at the destinations cluster, if Intel VT (Virtualization) is enabled on host BIOS and the version of your ESXi ?

[tdubb123]

i cant really tell as its a vendor appliance. but I have raised the EVC mode to nehalem from meron. and it powered up fine. I am not sure if there was anything on the VM side that could be tweaked to allow for powering up in meron EVC mode.

I tried update the vm hardware version but the OS itself faild to boot