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VMware ESXi and ESX hypervisor architectures provide a robust, production-proven, high-performance virtualization layer that allows multiple virtual machines to share hardware resources with record-breaking performance that can match and in some cases exceed) native throughput.

VMware Virtual SMP enables the use of ultra-powerful virtual machines that possess up to four virtual CPUs.

VMware vStorage Virtual Machine File System (VMFS) allows virtual machines to access shared storage devices (FibreChanel, iSCSI, etc.), and is a key enabling technology for other vSphere components such as Storage vMotion.

VMware vStorage APIs provide integration with supported third-party data protection solutions.

VMware vStorage Thin Provisioning provides dynamic allocation of shared storage capacity, allowing IT organizations to implement a tiered storage strategy while reducing storage spending by up to 50 percent.
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