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Whoa, many thanks Andrew,<br />
<br />
The VCenter is running as VM (same VM as the SQL server), so I can take clone for it before performing the upgrade.
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Correct - CLONE - ALWAYS before upgrade.
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Need any more help with this question, to allow you to close out ?
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Hi Andrew,<br />
<br />
Quick clarification, if I need to rollback from failed ESXi 6.0u2 upgrade, How can I restore it back for the VI-cfg backup ?
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No requirement at all to restore your config.<br />
<br />
Just use Rollback Mode, at startup of the ESXi OS, and that will rollback to previous version of ESXi and Config, before the upgrade.
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do you need any further help to resolve this question.
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<div class="content wysiwyg-content">
Hi All,<br />
<br />
Can anyone here please share some steps or way to backup VMware ESXi 5.1 server setting ?<br />
my VCenter and ESXi 5.1 license type is <b>VMware vSphere 5 Essentials Plus</b><br />
<br />
I need to upgrade it to ESXi 5.5 starting from the VCenter VM first which is quite easy to do.
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Hi All,

Can anyone here please share some steps or way to backup VMware ESXi 5.1 server setting ?
my VCenter and ESXi 5.1 license type is VMware vSphere 5 Essentials Plus

I need to upgrade it to ESXi 5.5 starting from the VCenter VM first which is quite easy to do.

Backing up ESXi server settings before upgrade ?

VMware, a software company founded in 1998,  was one of the first commercially successful companies to offer x86 virtualization. The storage company EMC purchased VMware in 1994. Dell Technologies acquired EMC in 2016. VMware’s parent company is now Dell Technologies.

VMware has many software products that run on desktops, Microsoft Windows, Linux, and macOS, which allows the virtualizing of the x86 architecture.  Its enterprise software hypervisor for servers, VMware vSphere Hypervisor (ESXi), is a bare-metal hypervisor that runs directly on the server hardware and does not require an additional underlying operating system.

VMware

Virtualization is the act of creating a virtual (rather than actual) version of something, including (but not limited to) a virtual computer hardware platform, operating system (OS), storage device, or computer network resources. Virtualization is usually the creation of a system that executes separate from the underlying hardware resources, or the creation of an entire desktop for systems located elsewhere, similar to thin clients.

Virtualization

Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. For large systems, the operating system makes sure that different programs and users running at the same time do not interfere with each other. The operating system is also responsible for security, ensuring that unauthorized users do not access the system. Operating systems provide a software platform on top of which other programs, called application programs, can run.

Operating Systems

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.