Hi all, Can Someone clarify my doubt on EVC

[thiruvas]

I Have a cluster with 6 host running (Combination of Dell and HP servers and all are intel) processor, In that,

1. 3 host are "Westmere" generation EVC baseline,

2. Remaining 3 host are 'Sandy bridge: generarion EVC baseline

My requirement is,

1, Wants to enable EVC for that cluster, please tel me is it possible or not

2. If i cant enable, what is the reason

3. And if I enable, what issue i ll face

[fugrat1]

Hi thiruvas

You will be able to enable EVC, however it will not be easy as you have 2 different baseline hosts in the cluster.  The easiest way would be to create a new cluster, enable EVC and set it to Westmere generation, then move your existing hosts into the new cluster.  EVC basically 'hides' the instructions of newer processors that are not available on the baseline processor that you select.

If you have enough headroom you could remove the 3 Sandybridge processors from your current cluster, enable EVC which will then be set to Westmere and then add the 3 sandybridge hosts back into the cluster

Also have a look here Enable EVC without downtime