Snapshots and linked clones
A snapshot saves a point-in-time state of a given virtual machine. Changes beyond the snapshot of the point-in-time state are written to a delta disk while the original virtual disk (
.vmdk) is marked as read-only. This preserves the point-in-time state of the virtual machine until the snapshot is deleted by an administrator. Multiple snapshots of a given virtual machine can be taken, and it is these point-in-time snapshots that are used as the basis for View Composer linked clones.
A linked clone is a copy of a virtual machine based on a specific snapshot of that virtual machine (known as the parent). When a linked clone pool is created, View Composer creates a replica.
A replica is the original read-only base virtual ...