Читать книгу Mastering VMware vSphere 6 - Marshall Nick - Страница 16

Identify the role of each product in the vSphere product suite. The VMware vSphere product suite contains VMware ESXi and vCenter Server. ESXi provides the base virtualization functionality and enables features like Virtual SMP. vCenter Server provides management for ESXi and enables functionality like vMotion, Storage vMotion, vSphere Distributed Resource Scheduler (DRS), vSphere High Availability (HA), and vSphere Fault Tolerance (FT). Storage I/O Control and Network I/O Control provide granular resource controls for VMs. The vStorage APIs for Data Protection (VADP) provide a backup framework that allows for the integration of third-party backup solutions into a vSphere implementation.

Master It Which products are licensed features within the VMware vSphere suite?

Master It Which two features of VMware ESXi and VMware vCenter Server together aim to reduce or eliminate downtime due to unplanned hardware failures?

Master It Name two storage-related features that were introduced in vSphere 5.5.

Recognize the interaction and dependencies between the products in the vSphere suite. VMware ESXi forms the foundation of the vSphere product suite, but some features require the presence of vCenter Server. Features like vMotion, Storage vMotion, vSphere DRS, vSphere HA, vSphere FT, SIOC, and NIOC require ESXi as well as vCenter Server.

Master It Name three features that are supported only when using vCenter Server along with ESXi.

Master It Name two features that are supported without vCenter Server but with a licensed installation of ESXi.

Understand how vSphere differs from other virtualization products. VMware vSphere’s hypervisor, ESXi, uses a Type 1 bare-metal hypervisor that handles I/O directly within the hypervisor. This means that a host operating system, like Windows or Linux, is not required in order for ESXi to function. Although other virtualization solutions are listed as “Type 1 bare-metal hypervisors,” most other Type 1 hypervisors on the market today require the presence of a “parent partition” or “dom0” through which all VM I/O must travel.

Master It One of the administrators on your team asked whether he should install Windows Server on the new servers you purchased for ESXi. What should you tell him, and why?