The Get-WBSummary cmdlet retrieves the history of backup operations on the computer. This information includes the next scheduled backup, details of the last backup, and details of the last successful backup. You can use this cmdlet to monitor the backups and the backup schedule on the computer.
To use this and any other Windows Server 2012 Backup cmdlets, you must be a member of the Administrators group or Backup Operators group.
Example 1: Get a backup summary
PS C:\> Get-WBSummary
This command gets information about the history of backups on the local computer.
The Get-WBSummary cmdlet returns the WBSummary object that contains information about the backup history for this computer.