VMware vSphere ESXI
esxi和vSphere 是什么关系？-VMware vSphere 4.x-VmSky虚拟化论坛 – Powered by Discuz!
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简单的说，把ESXI当做资源，vSphere管理资源。
vi3的下一代架构成为vsphere4，其包括esx4和vcenter4；esxi现在单列了。
从官网首页处可以看到vsphere和esxi是并列的。
ESXi3 版本升级后对应 ESXi4
ESX 3.5 版本升级后对应 ESX 4
viclent2.5 版本升级后对应 vsphere client 4
virtual center 2.5 版本升级后对应 vCenter4
VI3 版本升级后对应 vsphere4
其中VI3是一组软件的统称，包括：
ESX3，viclent2.5，virtual center 2.5
vsphere4也是一组软件的统称，包括
ESX4,vsphere client4，vCenter4
ESXi 是免费版本的ESX，就是少了 service console，同时也少了一些ESX的功能
| vSphere 4是VI3 (VMware Infrastructrue 3)的升级。 vSphere 4和VI3一样，都包括了很多组件，比如client，ESX或ESXi，vCenter（原来叫VirtualCenter）等等。 5楼在这点上说的蛮清楚的。除了ESXi现在不仅仅只有免费版本了这一点。 关于ESX和ESXi的区别，我曾经写了篇文章。 |
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VMware KB: VMware ESX and ESXi 4.0 Comparison
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VMware ESX and ESXi 4.0 Comparison (1015000)
Purpose
This article provides a detailed comparison of VMware ESX and ESXi 4.0. The article is separated into capabilities or features and compared at that level.
Resolution
| Capability | VMware ESX | VMware ESXi |
| Service Console | Service Console is a standard Linux environment through which a user has privileged access to the VMware ESX kernel. This Linux-based privileged access allows you to manage your environment by installing agents and drivers and executing scripts and other Linux-environment code. | VMware ESXi is designed to make the server a computing appliance. Accordingly, VMware ESXi behaves more like firmware than traditional software. To provide hardware-like security and reliability, VMware ESXi does not support a privileged access environment like the Service Console for management of VMware ESXi. To enable interaction with agents, VMware has provisioned CIM Providers through which monitoring and management tasks – traditionally done through Service Console agents – can be performed. VMware has provided remote scripting environments such as vCLI and PowerCLI to allow the remote execution of scripts. |
| CLI-Based Configuration | VMware ESX Service Console has a host CLI through which VMware ESX can be configured. VMware ESX can also be configured using vSphere CLI (vCLI). | The vSphere CLI (vCLI) is a remote scripting environment that interacts with VMware ESXi hosts to enable host configuration through scripts or specific commands. It replicates nearly all the equivalent COS commands for configuring ESX.
Notes:
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| Scriptable Installation | VMware ESX supports scriptable installations through utilities like KickStart. | VMware ESXi Installable does not support scriptable installations in the manner ESX does, at this time. VMware ESXi does provide support for post installation configuration script using vCLI-based configuration scripts. |
| Boot from SAN | VMware ESX supports boot from SAN. Booting from SAN requires one dedicated LUN per server. | VMware ESXi may be deployed as an embedded hypervisor or installed on a hard disk.
In most enterprise settings, VMware ESXi is deployed as an embedded hypervisor directly on the server. This operational model does not require any local storage and no SAN booting is required because the hypervisor image is directly on the server.
The installable version of VMware ESXi does not support booting from SAN. |
| Serial Cable Connectivity | VMware ESX supports interaction through direct-attached serial cable to the VMware ESX host. | VMware ESXi does not support interaction through direct-attached serial cable to the VMware ESXi host at this time. |
| SNMP | VMware ESX supports SNMP. | VMware ESXi supports SNMP when licensed with vSphere Essentials, vSphere Essential Plus, vSphere Standard, vSphere Advanced, vSphere Enterprise, or vSphere Enterprise Plus. The free version of VMware ESXi does not support SNMP. |
| Active Directory Integration | VMware ESX supports Active Directory integration through third-party agents installed on the Service Console. | VMware ESXi does not support Active Directory authentication of local users at this time. |
| HW Instrumentation | Service Console agents provide a range of HW instrumentation on VMware ESX. | VMware ESXi provides HW instrumentation through CIM Providers. Standards-based CIM Providers are distributed with all versions of VMware ESXi. VMware partners include their own proprietary CIM Providers in customized versions of VMware ESXi. These customized versions are available either from VMware’s web site or the partner’s web site, depending on the partner.
Remote console applications like Dell DRAC, HP iLO, IBM RSA, and FSC iRMC S2 are supported with ESXi. |
| Software Patches and Updates | VMware ESX software patches and upgrades behave like traditional Linux based patches and upgrades. The installation of a software patch or upgrade may require multiple system boots as the patch or upgrade may have dependencies on previous patches or upgrades. | VMware ESXi patches and updates behave like firmware patches and updates. Any given patch or update is all-inclusive of previous patches and updates. That is, installing patch version “n” includes all updates included in patch versions n-1, n-2, and so forth. Furthermore, third party components such as OEM CIM providers can be updated independently of the base ESXi component, and vice versa. |
| VI Web Access | VMware ESX supports managing your virtual machines through VI Web Access. You can use the VI Web Access to connect directly to the ESX host or to the VMware Infrastructure Client. | VMware ESXi does not support web access at this time. |
| Licensing | For licensing information, see the VMware Sphere Editions Comparison. | For licensing information, see the VMware Sphere Editions Comparison. |
| Diagnostics and Troubleshooting | VMware ESX Service Console can be used to issue commands that can help diagnose and repair support issues with the server. | VMware ESXi has several ways to enable support of the product:
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| Jumbo Frames | VMware ESX 4.0 fully supports Jumbo Frames.
| VMware ESXi 4.0 fully supports Jumbo Frames.
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VMware KB: VMware ESX and ESXi 3.5 Comparison
VMware KB: VMware ESX and ESXi 4.1 Comparison
What’s New in VMware vSphere 4.0
“What’s New in VMware vSphere 4.0
VMware® is renaming its flagship VMware Infrastructure product to VMware vSphere™. VMware vSphere 4.0 is the next major version of VMware Infrastructure 3.
VMware vSphere™, the industry’s first cloud operating system, leverages the power of virtualization to transform datacenters into dramatically simplified cloud-computing infrastructures. With VMware vSphere, IT organizations can use internal and external resources to deliver the next generation of flexible and reliable IT, securely and with low risk.
vCenter Server 4.0
Host Profiles
vCenter Server Linked Mode
vApps
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免费 VMware vSphere Hypervisor (ESXi) | VMware 中国
【总结】
“简单的说，把ESXI当做资源，vSphere管理资源。
ESXi 是免费版本的ESX，就是少了 service console，同时也少了一些ESX的功能”
VMware把之前的VMware基础设施产品，改名为了：
VMware vSphere，
最新版本的是：VMware vSphere 4.0
之前的叫做：
VMware Infrastructrue==VI
VMware Infrastructrue 3==VI3
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