Cold cloning and hot cloning of physical machines

Source: Internet
Author: User

Hot clones, also known as Live clones or online clones, require that the source computer be converted during the process of running its operating system on the source computer. With hot cloning, you can clone a computer without shutting down the computer. Because the process continues to run on the source computer during the conversion, the resulting virtual machine is not an exact copy of the source computer. When you convert a Windows source, you can set Converter standalone to synchronize the destination virtual machine with the source computer after a hot clone. The synchronous execution process is the copy of the block changed during the initial clone from the source to the destination. To avoid losing data on the target virtual machine,Converter standalone can turn off some Windows services before synchronizing. Depending on the user's settings,Converter Standalone closes the selected Windows service so that no significant changes occur on the source computer during the synchronization target. Converter Standalone can turn off the source computer and power on the target computer after the conversion process is complete. When combined with synchronization, this operation allows the physical machine source to be migrated seamlessly to the virtual machine destination. The target computer takes over the source computer and minimizes downtime.

Cold cloning, also known as offline cloning, is used to clone this source computer when the source computer is not running its operating system. When you are cold-cloning a computer, reboot the source computer through the CD that has the operating system and Converter standalone application on it. With cold cloning, you can create the most consistent copy of the source computer because no changes are made to the source computer during the conversion. Cold cloning leaves no traces on the source computer, but requires direct access to the cloned source computer.

When you cold-Clone a Linux source, the virtual machine that is generated is an exact copy of the source computer, and the target virtual machine cannot be configured, and the target virtual machine must be configured after cloning is complete.

1. Remote Hot clone of a physical machine source running Windows

Remote Hot clones that run a physical machine source for Windows can use the Conversion Wizard to set up conversion tasks and use the Converter Standalone component to perform all the cloning tasks. The following is an example of a workflow remote hot clone, where the physical machine cloned does not stop.

Step 1 Converter Standalone prepare the source computer for the conversion.

Converter Standalone Install the agent on the source computer, the agent creates a snapshot of the source volume,

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step 2 converter Standalone prepare the virtual machine on the target computer.

converter standalone creates a virtual machine on the destination computer, and then the agent copies the volumes from the source computer to the destination computer.

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step 3 

Agent installs the required drivers to allow the operating system to boot in the virtual machine , and the virtual machine is customized (for example, to change IP information).

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step 4 converter Standalone Uninstall the agent from the source computer (optional).

When the virtual machine is ready to run on the target server, uninstall the agent from the source computer (optional),

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2. Remote Hot clone of a physical machine source running Linux

The physical machine running the Linux operating system is not the same as the conversion process for Windows computers. In Windows conversion, converter standalone agent will be installed on the source computer and the source information will be pushed to the destination. In a Linux transformation, no agents are deployed on the source computer. Instead, the assistant virtual machine is created and deployed on the target Esx/esxi host. The source data is then copied from the source Linux computer to the assistant virtual machine. When the conversion is complete, the assistant virtual machine shuts down and will be the target virtual machine after the next boot. The conversion principle of Linux is translated as follows:

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converter Standalone use SSH to connect to the source computer and retrieve the source information. converter standalone will create an empty helper virtual machine based on your conversion task settings. The helper virtual machine is used as a container for new virtual machines during the conversion process. converter standalone deploys the assistant virtual machine on the managed target (ESXi host). The Assistant virtual machine boots from the converter *.iso server computer,

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After the helper virtual machine starts, boot from the Linux image, connect to the source computer via SSH, and start retrieving the selected data from the source. When you set up a transform task, you can choose which source volumes you want to copy to the destination computer. After data replication is complete, reconfigure the target virtual machine to allow the operating system to boot in the virtual machine. converter standalone will turn off the helper virtual machine. At this point, the conversion process is complete. You can configure the converter Standalone to start the newly created virtual machine after the conversion is complete.



This article is from the "Zhong blog" blog, make sure to keep this source http://capfzgs.blog.51cto.com/7729146/1588908

Cold cloning and hot cloning of physical machines

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