Amazon Glacier | Data Inventories

Question 1

What impact does the change in the retrieval free tier to 10 GB per month have on my data retrieval policy?

Data Inventories

Amazon Glacier | Storage

Answer 1

There is no impact to your policy in terms of the rate of data retrieval. If your retrieval policy was set to the previous free tier of 5% of your average monthly storage prior to the change in the retrieval free tier on November 21, 2016, your policy will remain the same GB-per-hour retrieval rate as your previous 5% free tier rate as of November 21, 2016. For example, if on that day your average monthly storage was 14,400 GB, your retrieval rate limit was 14,400 GB x 5% / 30 day / 24 hours = 1 GB per hour. Your new policy will remain at 1 GB per hour, but will be a “Max Retrieval Rate” rather than a “Free Tier Only” policy.

Question 2

Can I see what archives I have stored in Amazon Glacier?

Data Inventories

Amazon Glacier | Storage

Answer 2

Yes. Although you will need to maintain your own index of data you upload to Amazon Glacier, an inventory of all archives in each of your vaults is maintained for disaster recovery or occasional reconciliation purposes. The vault inventory is updated approximately once a day. You can request a vault inventory as either a JSON or CSV file and will contain details about the archives within your vault including the size, creation date and the archive description (if you provided one during upload). The inventory will represent the state of the vault at the time of the most recent inventory update.