Backup applications for the Virtualized environment back up the Virtual Machine at the image level and are not aware of what is going on inside the installed guest operating system. So before you back up your Virtual Machines you should ensure they are quiesced so they are in a consistent state to be backed up. Quiesce is to pause or alter a device or application to achieve a consistent state, usually in preparation for a backup. The quiesce operation is handled inside the guest OS, and for Windows VMs, the Volume Shadow Copy Service (VSS) handles this. If you don’t…
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