I'm having trouble figuring out the best way to use AWS to optimize billing
I'm using Veritas Backup Exec to back up my Windows servers. I have successfully implemented backup to both S3 storage and the VTL Tape Storage Gateway for offsite cloud storage. I am trying to understand the best product to use at the lowest cost. I think incorporating say an archive-to-Glacier rule into my S3 storage is impractical because Backup Exec software does not (yet) directly "understand" about glacier and how requests for data could be delayed and how to link all the various files Backup Exec uses in a given backup event to a specific data request that would be passed to Glacier (?)
I also don't understand the billing well enough to figure out if S3 or VTL is cheaper. I run full or incremental backups of 2TB or 600GB or 50GB and I understand how to manage and plan for those numbers and I think the main Storage Gateway cost revolves around this number so I think I can plan for Storage Gateway costs that way (?), but it appears S3 bills are primarily made up of "Requests". How do I translate or set an expectation of how a 600GB or 50GB nightly backups to S3 would translate to X requests?
Finally it appears we can "achive" tapes in the VTL to move them from S3 to Glacier for lower storage costs and according to this: we do this with our "backup software". How do we do this in Backup Exec? https://docs.aws.amazon.com/storagegateway/latest/userguide/managing-virtual-tapes-vtl.html#main-arc...
