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The following major components comprise the VMware vCenter Server architecture:
Provides the central point of control for configuring, provisioning, and managing virtualized IT environments. vCenter Server runs as a service on Microsoft Windows platforms.
Note: For information about vCenter Server system requirements, see the Release Notes.
Stores persistent information about the physical servers, resource pools, data centers, and virtual machines managed by the vCenter Server.
Connects ESX Servers with a vCenter Server.
Provides remote connections to the vCenter Server or to individual ESX Servers from any Windows computer.
Connects with the vCenter Server without installing a client.
In this environment, the CA Server Automation AIM detects the logical and physical relationships between the components of the virtualized environment. The AIM provides a view of the entire virtualized environment.
The AIM for vCenter Server monitors the following resource types:
Provides information about the health status of the vCenter Server computer. For example, status and data about CPU, datastore, and memory usage.
Serves as a container for your hosts, virtual machines, resource pools, or clusters. Data centers can represent organizational structures if their virtual configurations meet the requirements of specific departments. You can also use data centers to create isolated virtual environments for testing or organization purposes.
Represents all computing and memory resources of a physical server on which an ESX Server runs.
Defines partitions of physical computing and memory resources of a single host or a cluster. You can partition any resource pool into smaller resource pools to divide and assign resources to specific groups or for specific purposes. You can also hierarchically organize and nest resource pools.
Specifies virtualized x86 environments in which guest operating systems and applications can run. When you create a virtual machine, it is assigned to a particular host, cluster, or resource pool, and to a datastore. A virtual machine consumes resources dynamically on its physical host, in the same manner a physical device consumes energy dynamically depending on its workload.
Specifies a virtual representation of combinations of underlying physical storage resources in a data center. Local disks on a server provide the physical storage resources, using SAN disk arrays, and so on.
Defines the disk drive in a virtual guest operating system. A virtual disk is a specific file or a set of files that reside on the local host or on a remote file system. The virtual disk behaves like a physical disk drive in an operating system.
Works like a physical switch. Each ESX Server has its own virtual switches that connect to virtual machines through port groups. These virtual switches also have uplink connections to the physical Ethernet adapters on the ESX server. Virtual machines communicate with the outside world through physical Ethernet adapters connected to virtual switch uplinks.
Specifies a physical Ethernet adapter on an ESX Server.
Specifies a virtual Ethernet adapter on a virtual machine. The guest operating system communicates with the virtual Ethernet adapter through a device driver as if the virtual Ethernet adapter was a physical Ethernet adapter. The virtual Ethernet adapter has its own MAC address, one or more IP addresses, and responds to the standard Ethernet protocol exactly like a physical NIC.
Provide physical information about the CPU, memory, fan, voltage, storage, temperature, and power. Hardware sensors can be accessed in ESX servers through vCenter Server.
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