It depends on your hypervisor. For XenServer, you should check the CPU feature you have and if the CPU supports masking [1].
xe host-cpu-info > Look for the "features" information, and then check if your hardware guy can provide a processor with similar features or one that supports masking the same features as your current servers' CPUs. [1] https://support.citrix.com/article/CTX127059 On Fri, Feb 10, 2017 at 10:28 AM, Nando Beifiori <nandobeifi...@gmail.com> wrote: > Hi all, > > quick but very important question: I have a cluster with Intel Xeon E5-2667 > v3 CPUs and I need to add another host, but my provider has replaced the v3 > with the v4 of the same CPU. > > The differences are: > > - Lithography (22nm > 14nm) > - Cache size (20MB > 25MB) > - Max Memory Bandwidth (68 GB/s > 76.8 GB/s) > - Intel TSX-NI feature which is present in v4 but not in the v3. > > Frequency, turbo frequency and cores are exactly the same. > Would it be possible to add the new host to the same cluster or should I > create a new cluster or maybe look for a provider that still has the v3 > CPU? > > Cloudstack version is 4.9 and hosts use Centos 7.2. > > Thanks in advance > -- Rafael Weingärtner
