One of the most basic capacity considerations involved while planning to move SQL workloads to a virtual environment is to understand the maximum capacity of a single Virtual Machine (VM.
Many times questions arises in mind like “what is the max memory which a VM supports?”
Look at what one of the leading platform VMware vSphere 5 Enterprise Plus offers for a single VM -
These are pretty heavy numbers, and good enough to handle a tough SQL workload.
Windows Server 2012 Hyper-V also looks really promising [The RTM bits are scheduled to be released by Aug 12]
64 vCPUs per VM is really impressive and some other numbers which impressed me with Windows Server 2012 Hyper- V are -
Active VMs per Host - 1,024
Maximum cluster nodes – 64 and Maximum VMs in a cluster – 4,000
Both VMware and Microsoft improved a lot when it comes to capacity per VM and thats really a good news.
Capacity limitation is not anymore a reason for you to move your SQL workloads to a virtual world. Come on in,the water is warm !!!