About Storage Configuration : About Edge settings : Downgrading to a previous version of Edge or Core
  
Downgrading to a previous version of Edge or Core
Before downgrading to a previous version of Edge or Core, you must perform these steps in order:
1. Remove any existing server-level backup policies and proxy backup servers under Configure > Data Protection: Backups.
2. Remove the servers from the Servers tab of the Data Protection: Edges page. After doing so, we recommend waiting at least 10 minutes before performing the downgrade to ensure that snapshots associated with recently deleted backup policies are deleted on the Edge.
Prepopulation
Displays controls for configuring prepopulation tasks. This prepopulation schedule is applied to all virtual LUNs mapped to the currently selected Edge if no LUN-specific schedule is configured.
Schedule Name
Specifies a task name.
Start Time
Specifies the start day and time from the respective drop-down lists.
Stop Time
Specifies the stop day and time from the respective drop-down lists.
Add Prepopulation Schedule
Adds the task to the Task list.
To delete an existing task, click the trash icon in the Task list.