As we noticed that all servers vendors like HP, DELL and IBM had launched their latest generation of servers to support the Intel Nehalem which also name as Intel Xeon 5500 series high performing virtualization chipset. I had read up couples of review from the expert which provide some useful information for reference purpose.
If we refer to the current version which is ESX 3.5 u3, the maximum number of Vcpu per ESX server is 192 per ESX Servers. Personally, I think the number of Vcpu per ESX servers is too minimal. Imagine if we do run a servers with 4 or 8 physical CPU sockets and we consolidate 40 : 1 Physical server in our virtualization environment, we will hit to the bottleneck on maximum numbers of Vcpu per ESX servers but not due to the CPU consumption.I hope VMWare should revise the configuration to greater number or 256 Vcpu per ESX servers.
Been a while we all working on virtualization for consolidation purpose, I am sure that 1 of the biggest selling point we always remind the customers and management is we will able to fully utilize the investment we put in for the servers in our data center with virtualization in place. Most of the time, we may still not 100% utilize the servers capacity due to some consideration of High Availability and Performance issues.
Here I am interesting to show 1 of the screen shot I capture during my stress test on the ESX host for our production machine which hit to 100% of the CPU utilization on the ESX host level.
Click the picture above for full view
As 6 cores and 8 cores per cpu is going to be launched in the market, there had been some discussion going on about the licensing model current apply to the VMware licensing policies. As current agreement, it will maximum allow 4 cores per CPU sockets. Down the road, it will be 6 cores and 8 cores per CPU. They might be a chances of VMware to change their CPU licensing model in the future, or they may stick with the current policy which base on the physical CPU sockets. VMware is the best products at the current Virtualization market, but they do need to understand that the TCO for a users to start the Virtual Infrastructure Enterprise is more or double the price of the potential customer to switch for Xen, Citrix or Hyper-V. Personally,
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