We support S3 Glacier. Legacy Glacier is no longer officially supported. From my understanding, the only real difference is that vendors like MSP360 can use the S3 API rather than the legacy Glacier API to access data in Glacier and you can access S3 Glacier the same as other S3 storage classes. To target S3 Glacier for a backup, select the desired Storage Class on the Compression & Encryption Options page in the backup wizard. You can currently select: Glacier, Glacier Instant Retrieval, and Glacier Deep Archive as the three Glacier storage class options - in addition to other S3 storage classes. More information from Amazon here: https://aws.amazon.com/s3/storage-classes/glacier/ as well as some information from us here: https://kb.msp360.com/cloud-vendors/amazon-aws/s3-glacier-legacy-glacier-difference

There might be some confusion here. Strange, when I create a Vault, it does say S3 Glacier, but no buckets. Ok, I've read the article, thank you. How do you create a bucket to be S3 Glacier or Deep Archive? When I try to create a new bucket it does not seem to ask anywhere. But at least it has versioning. I know there could be lifecycle policy used to move objects to Glacier, but i prefer to avoid that and work directly with S3 Glacier deep archive. How can i do it to make it work with your software please?

You do not create a bucket for a storage class. You only set the objects to that storage class when they are created. And you can transition the objects automatically to less expensive classes using a Lifecycle Policy, if desired. You back up to S3 Glacier using the Storage Class option in the backup wizard as mentioned above.

is there any article showing the process of creating whatever you require to make your software connect to it? After creating a bucket, how to set up access keys (not to the whole account that might have many buckets but only to access that specific bucket), which permissions (access) to unblock, which one to to keep blocked etc. maybe there is a list of steps to follow, to make sure it all works without trial and error? Thank you again for your help.