Hi,
I would be happy to provide more details to get an answer to this. The way cloud storage billing works any under-estimation of operations can cause the bill to double to triple and we have a billions of storage objects in the bucket where we want to apply this change.
For our situation, the storage bucket is in a single bucket, no versioning is enabled. We want to only update the lifecycle managment policy to transition objects to archive (right now the policy is transition object to coldline) rest of the conditions remain the same. From the documentation it seems this should only cost us SetStorageClass on destination storage class for the number of objects impacted. I just want to make sure there are no other charges e.g. rewrite/early deletion/list etc etc. and the calculations in the original post are accurate.
Please let me know. An accurate cost estimate would be great to have.