aws ebs
You can use the Amazon Elastic Block Store (Amazon EBS) direct APIs to create Amazon EBS snapshots, write data directly to your snapshots, read data on your snapshots, and identify the differences or changes between two snapshots. AWS CLI reference
6 commands Its page in the AWS CLI reference
Commands
complete-snapshotSeals and completes the snapshot after all of the required blocks of data have been written to it.get-snapshot-blockReturns the data in a block in an Amazon Elastic Block Store snapshot.list-changed-blocksReturns information about the blocks that are different between two Amazon Elastic Block Store snapshots of the same volume/snapshot lineage.list-snapshot-blocksReturns information about the blocks in an Amazon Elastic Block Store snapshot.put-snapshot-blockWrites a block of data to a snapshot.start-snapshotCreates a new Amazon EBS snapshot.