I want to clarify a couple items. One, there is no default lifecycle policy that we use with S3. Meaning, data goes to S3, S3-IA, or Glacier based on the backup plan settings. However, when you click on the Lifecycle Policy option in CloudBerry Backup, there are some defaults that are on the dialog - but those default setting are not actually considered "validated" for S3 and we already have a plan to show better defaults and perform better policy verification in an upcoming release.

If you go to your AWS Console and define a new Lifecycle Policy when moving data from S3-Standard, you'll see that if you want to move data to S3-IA, you need to keep it first in S3-Standard for a minimum of 30 days. To move to Glacier from S3-IA, you need to use a minimum of 60 days, since S3-IA has a 30 days minimum retention period, These are days from file/blob creation in S3.

While S3 is accepting a 0 days transition from S3-Standard to Glacier and 30 days from S3-Standard to S3-IA, it's obvious that makes no sense. What will happen is data will move that first day frmo S3-Standard to Glacier if 0 Days is used and the data will never see S3-IA.

What is your goal with your backup data?

It sounds like the default Lifecycle Policy setting (if enabled/applied) is in fact confusing. I have one backup set to transition to Glacier in 0 days (so straight to Glacier) and my other backup set to transition to S3-IA after 30 days (which is the minimum), so I think I am fine, but the changes in the upcoming release will be appreciated.

Thanks!