Information on Backup and Quarantine space usage is displayed in the Storage section, Capacity tab.
The table contains the following information:
The default maximum size of Backup (in addition to Quarantine) is 10 GB. As soon as this threshold value is exceeded, the program starts to remove the oldest copies of objects from Backup. When the amount of occupied space is again below the threshold value, the program stops removing copies of objects from Backup.
The maximum size of Quarantine is 10 GB. If the size of Quarantine exceeds the threshold value defined by default, you will not be able to place any new objects into it until you delete some of the old objects.