The guide explains how to upgrade VMware vSphere components, including ESX/ESXi hosts, vCenter Server, and the vSphere Client. It lists supported versions, required hardware and software, and the steps needed to perform a successful upgrade.
Key sections cover system requirements, backup and restore of databases, upgrade utilities, licensing considerations, and best practices for minimizing downtime. The document also includes example upgrade scenarios for clustered and non‑clustered environments. This manual is written in Chinese.
| ESX hardware requirements | See section 4.1 |
|---|---|
| vCenter Server and vSphere Client hardware requirements | See section 4.2 |
| vCenter Server software requirements | See section 4.3 |
| vSphere Client software requirements | See section 4.4 |
| Supported 64‑bit client operating systems | See section 4.5 |
The latest technical documents can be downloaded from the VMware website at http://www.vmware.com/zh-cn/support/pubs/.
Backup procedures for VirtualCenter are described in sections 42‑49, including backing up Microsoft SQL and Oracle databases.
Host names must be shortened to no more than 15 characters before configuring vCenter Server.
The vSphere Host Update Utility supports rollback of ESX/ESXi upgrades.