![]() ![]() If the virtual disk is deleted or storage or infrastructure fails, snapshots cannot restore a VM. But again, snapshots are not a full copy of a virtual hard disk. Snapshots should can be used if you are performing an update that could harm your system. Snapshots can be used in production environments but should be done with purpose. VM snapshots can be used as a quick failsafe to be able to rollback before a patch, an upgrade, a test, or unsafe operations were performed on a VM. Snapshots are generally used for development and testing purposes. The virtual machine data consists of all files, memory, devices on the network, and virtual network interface cards. The state of the machine includes the virtual machine’s power state of powered-on, powered-off or suspended. VM snapshots preserve the state and data of a virtual machine at a specific point in time so that if something goes wrong, you can go back to that point before it occurred. While many backup products use snapshots as part of a feature set, a snapshot alone is not a backup. It is dangerous to consider VM snapshots an actual backup copy of data. ![]() Mistakenly, some still view snapshots as a backup because they allow a VM to return to a previous state. VM snapshots are a simple and effective way to roll a virtual machine back to a point in time. ![]()
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