By David E. Williams
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Shares represent a relative priority. This priority denotes which virtual machines will have priority or preferential access to the CPU. " In our example of the Service Console, it has been allotted 2,000 shares on processor0. Since the Service Console has been allocated 2,000 shares, it has priority access on processor0 over a virtual machine, which default is configured to Normal. 5. NUMA and Processor/Memory Affinity ESX Server supports physical hosts that are of Non-Uniform Memory Access (NUMA) architecture.
Store your virtual in a VMlibrary which should house all the tools, Gold Masters, ISO images, and other materials used within your virtual infrastructure. 7. 1. 1. Virtual Machine Basics Building a virtual machine is really quite similar to building a regular computer. All computers, virtual or physical, need a bare minimum of specific hardware such as a CPU (an important one), memory, disk space, and if you want it to talk with other computers on your LAN/MAN/WAN, a network interface card. Although a contiguous memory space is visible to each virtual machine, the physical memory allocated may not be contiguous.
Behind the scenes, this selection essentially enables the nfshaper module. 3. Disk Bandwidth If you are running virtual servers that require heavy access to diskssuch as a file, messaging, or database serveryou may want to modify the bandwidth allocation values for that virtual machine. VMware ESX Server uses an "allocation policy" based on proportional shares. The more shares a virtual machine has on a disk, the more access to the disk the virtual machine will have. Shares can be set numerically, such as 100, 200, and so on, or by setting the share value to Low, Normal, or High.