Hyper-V Standard backup sets use deduplication and block-level processing. For these backup sets, the following options are available on the Delete Selection screen:
- Retain backup data for 7 days
- Delete all deduplication data
Retain Backup Data for 7 Days
By selecting the Retain backup data for 7 days check box, you can retain deleted data in your Local Vault and the cloud for deduplication purposes for seven days. At the end of seven days, this data is deleted.
This option is useful if you are backing up VMs on this machine and would like to use the existing blocks for de-duplication purposes.
If you choose not to select this option, the data that you have selected is deleted from the Local Vault and the cloud immediately.
Delete All Deduplication Data
By selecting the Delete all deduplication data check box, you can immediately delete any deduplication data not being used. This option is useful if you do not want to use existing blocks for de-duplication purposes anymore and you want to delete them immediately.