Remote storage usage decrease with retention policy

I still don’t understand the backup retention.

Suppose I use the smart retention policy (" 1W:1D,4W:1W,12M:1M").

I have a folder with two files, each file 100 MiB. They are backed up. The remote storage will be about 200 MiB.

I then delete one of these files. At what point in time will my remote storage usage drop to approx 100 MiB?


as I’m very lazy, I have asked a friend for advice. You’ll see the exchange in the attached images.
As he is a bit shy, I have masked the name.

Please note that I am not endorsing this advice, I am not competent enough to judge. Maybe it’s good. Maybe not so much. Possibly other people will chime in.

Welcome to the forum @bladiebla

In about 12M because you gave that as the longest timeframe to be protected.
Backup protection provides ability to restore an old file even if file got deleted.
If you’re certain you want a file gone now, it’s possible to force it to be purged.

What was confusing to me was the last sentence in “Over time backups will be deleted automatically. There will remain one backup for each of the last 7 days, each of the last 4 weeks, each of the last 12 months. There will always be at least one remaining backup.”

If the file is gone after 12M, how is there one remaining backup?

You might be mixing concept of backup versions and specific files, as evidenced by the two words.

A backup is a snapshot store of whatever files existed at that date.

The line just means you’ll have a snapshot, not that your file is in it.

Files are in backups that saw them. If file is deleted, and backups have aged away, that file is gone.


Restore menu chooses a backup version. Tree it makes shows files.

Restoring files from a backup

In the first step, select the restore point from which you want to restore some files by selecting a date and time behind Restore from. Each restore point will list all files and folders included in the backup exactly as they were at the listed timestamp.

So the “remaining backup” says you’ll have one you can choose from. Chances are that it’ll be recent.