By default, DPM will create for every data source two volumes (a replica andÂ a shadow copy volume). For Hyper-V and SQL Database DPM can colocation multiple data sources on a single replica an shadow copy volume. This is relatively well known setting. The option is especially useful for backup a large numbers of Hyper-V VMs.
What is less know, is the possibility to tune the initial size of the replica volume which DPM will choose when a new Protection Group with colocation is created. Continue reading